{"id":1036,"date":"2020-06-04T09:46:10","date_gmt":"2020-06-04T09:46:10","guid":{"rendered":"https:\/\/holo-metrix.com\/?page_id=1036"},"modified":"2023-04-18T11:39:20","modified_gmt":"2023-04-18T11:39:20","slug":"sound-power-measurement","status":"publish","type":"page","link":"https:\/\/holo-metrix.com\/en\/sound-power-measurement\/","title":{"rendered":"sound power measurement &#8211; Englisch"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"1036\" class=\"elementor elementor-1036\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-59125b46 elementor-section-full_width elementor-hidden-tablet elementor-hidden-mobile elementor-section-height-default elementor-section-height-default\" data-id=\"59125b46\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6e382bfd\" data-id=\"6e382bfd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-436ac872 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"436ac872\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-326094e2\" data-id=\"326094e2\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-439728cc elementor-widget elementor-widget-heading\" data-id=\"439728cc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">SOUND POWER MEASUREMENT<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-298c3481 elementor-widget elementor-widget-heading\" data-id=\"298c3481\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Our services<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7382786c elementor-widget elementor-widget-text-editor\" data-id=\"7382786c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Determination of the sound power level or the emission sound pressure level of plants, machines, devices and assemblies<\/li><li>Sound power measurement according to DIN EN ISO 9614 1-3 by means of sound intensity measurement<\/li><li>Sound power measurement according to DIN EN ISO 3744 \/ 3746 by means of sound pressure measurement<\/li><li>Measurement according to the Outdoor Noise Directive (2000\/14\/EC)<\/li><li>Measurement of emission variables on site<\/li><li>Determination of sound power level for research purposes<\/li><li>Individual determination of the sound power levels for your plant<\/li><li>Advice on the technically correct assessment of your products<\/li><li>Determination of sound emissions for already manufactured products as well as for products in the development phase by means of comparative measurements<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7729c085 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"7729c085\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md elementor-animation-float\" href=\"https:\/\/holo-metrix.com\/en\/technical-acoustic-measurements\/#angebot_einholen_desktop_en\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">request a sound power measurement now!<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-667d1d4d elementor-widget elementor-widget-heading\" data-id=\"667d1d4d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What is the purpose of sound power measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a8d810f elementor-widget elementor-widget-text-editor\" data-id=\"7a8d810f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>A quiet machine is a sign of high quality<\/li><li>By means of the sound power measurement it can be determined whether sound insulation is necessary<\/li><li>The Machinery Directive 2006\/42\/EC requires the specification of the airborne sound emission of the machine at the workplace. If the sound pressure level of 80 dB(A) is exceeded, the specification of the sound power is required.<\/li><li>Early detection of damage through noise and vibration measurements<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4b301934 elementor-widget elementor-widget-heading\" data-id=\"4b301934\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Methods for sound power determination<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41f16d50 elementor-widget elementor-widget-text-editor\" data-id=\"41f16d50\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The sound power can be determined in two ways. The distinction is made between sound power determination by means of sound pressure measurement and sound power determination by means of sound intensity measurement.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e66ccf4 elementor-widget elementor-widget-heading\" data-id=\"5e66ccf4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Sound pressure measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48135ae7 elementor-widget elementor-widget-text-editor\" data-id=\"48135ae7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Sound pressure measurement is characterized by the fact that only the local sound pressure level and all of its disturbance variables is recorded at a measurement location. Thus, we know how loud it is at this local point, but not from which direction the sound is coming. This method is therefore well suited in a quiet measurement environment with little background noise.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7adcc178 elementor-widget elementor-widget-heading\" data-id=\"7adcc178\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Sound intesity measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56da7bc0 elementor-widget elementor-widget-text-editor\" data-id=\"56da7bc0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In a measurement environment with potential noise interference, a sound intensity measurement should be performed to determine the sound power. This is particularly useful for stationary systems that are operating in a production hall. In contrast to the sound pressure measurement, the sound intensity is a vectorial quantity, so that the direction of the sound can be determined.<\/p><p>Ambient noise can thus be better detected and excluded from the results. The sound power can therefore usually be determined more accurately by means of sound intensity measurements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71182ab4 gallery-spacing-custom elementor-widget elementor-widget-image-gallery\" data-id=\"71182ab4\" data-element_type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-1' class='gallery galleryid-1036 gallery-columns-1 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"71182ab4\" data-elementor-lightbox-title=\"Schallfeldkarte\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6ODEwMywidXJsIjoiaHR0cHM6XC9cL2hvbG8tbWV0cml4LmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMTFcL1NjaGFsbGZlbGRrYXJ0ZS0yLmpwZyIsInNsaWRlc2hvdyI6IjcxMTgyYWI0In0%3D\" href='https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2.jpg'><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"172\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-300x172.jpg\" class=\"attachment-medium size-medium\" alt=\"\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-300x172.jpg 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-1024x587.jpg 1024w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-768x440.jpg 768w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-1536x881.jpg 1536w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-2048x1174.jpg 2048w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1cfc9c13 elementor-widget elementor-widget-heading\" data-id=\"1cfc9c13\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Execution of a sound power measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38844a0f elementor-widget elementor-widget-text-editor\" data-id=\"38844a0f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The sound power is usually determined according to standardized measurement methods. The following pictogram schematically illustrates the general procedure of a sound power measurement.<\/p><p><img decoding=\"async\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Piktogramm_Messung_english.png\" alt=\"Conventional procedure of a sound power measurement\" \/><\/p><p>\u00a0<\/p><ol><li>Preparation<\/li><li>Determine microphone positions<\/li><li>Measurement<\/li><li>Logging<\/li><\/ol><p>\u00a0<\/p><p><strong><span style=\"color: #112233;\">Step 1. Preparation:<\/span><\/strong><\/p><p>The first step is the selection of the standard according to which the measurement is to be performed. The two series of standards DIN EN ISO 3740 &#8211; 3746 and DIN EN ISO 9614 1 &#8211; 3 are mainly used for this purpose. The main difference between these two standards is that sound pressure is measured in the 374x series, whereas sound intensity is measured in the 9614 series. However, both series of standards have in common that sound pressure or sound intensity measurements have to be performed at numerous, spatially precisely defined positions. The measurement positions are usually located on an enveloping surface surrounding the measurement object, which can be cuboid, cylindrical or spherical shaped, depending on the underlying standard and sound source. The dimensions of the enveloping surface and the measured sound quantities (Pa or W\/m\u00b2) are finally used to determine the total sound power level.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5da10c04 elementor-widget elementor-widget-heading\" data-id=\"5da10c04\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Calculation LW for a sound pressure measurement (according to DIN EN ISO 3744):<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ee60986 elementor-widget elementor-widget-text-editor\" data-id=\"1ee60986\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img decoding=\"async\" class=\"alignnone wp-image-7580 size-full\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744.png\" alt=\"Formel zur Schalldruckbestimmung nach DIN EN ISO 3744 - Schallleistungsmessung I Formula for sound pressure determination according to DIN EN ISO 3744 - Sound power measurement\" width=\"800\" height=\"64\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744.png 800w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744-300x24.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744-768x61.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p><p>\u00a0<\/p><p><img decoding=\"async\" class=\"alignnone wp-image-7592\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744_englisch.png\" alt=\"Parameters of sound pressure determination - sound power measurement\" width=\"600\" height=\"197\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744_englisch.png 799w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744_englisch-300x98.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744_englisch-768x252.png 768w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59105be6 elementor-widget elementor-widget-heading\" data-id=\"59105be6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Calculation LW for a sound intensity measurement (according to DIN EN ISO 9614-1):<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6efe936c elementor-widget elementor-widget-text-editor\" data-id=\"6efe936c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7582 size-full\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1.png\" alt=\"Formel zur Schallintensit\u00e4tsbestimmung DIN EN ISO 9614-1 - Schallleistungsmessung I Formula for determining sound intensity DIN EN ISO 9614-1 - Sound power measurement\" width=\"795\" height=\"81\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1.png 795w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1-300x31.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1-768x78.png 768w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7593\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1_englisch.png\" alt=\"Parameters of sound intensity determination - sound power measurement\" width=\"600\" height=\"117\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1_englisch.png 800w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1_englisch-300x59.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1_englisch-768x150.png 768w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p><p><strong><span style=\"color: #112233;\">Step 2. Determine microphone positions:<\/span><\/strong><\/p><p>In practice, however, measuring the standard-compliant measuring positions is very time-consuming and in some cases it is even left to the eye of the measuring engineer. Often, self-made constructions or adhesive tape markings on the floor are used to help. With the sound intensity module of our augmented reality software, however, this is no longer necessary. After entering the dimensions of the measurement object, the AR glasses automatically calculate the enveloping surface and the measurement positions and display them with spatial accuracy. The measurement setup can be seen virtually in space and it remains stationary in place. Thus, the measurement engineer can walk around it and conveniently perform the measurement at all virtual positions.<\/p><p><strong><span style=\"color: #112233;\">Step 3. Measurement:<\/span><\/strong><\/p><p>During the measurement, certain criteria must be observed. A selection of these criteria is listed here:<\/p><ul><li>The levels measured at the respective measuring locations must not vary too much<\/li><li>The background noise must meet certain criteria (e.g. 10dB quieter than the level to be measured)<\/li><li>The measuring equipment must meet certain quality requirements<\/li><\/ul><p><strong><span style=\"color: #112233;\">Step 4. Logging:<\/span><\/strong><\/p><p>Finally, the logging and the interpretation of the measurement results are carried out. The exact information that must be included in a complete report can be found in the standards mentioned.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-71d78362 elementor-widget elementor-widget-spacer\" data-id=\"71d78362\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8d555cc elementor-section-full_width elementor-hidden-desktop elementor-hidden-mobile elementor-section-height-default elementor-section-height-default\" data-id=\"8d555cc\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-58023fd\" data-id=\"58023fd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-64798528 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"64798528\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-4657760\" data-id=\"4657760\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-38de7acd elementor-widget elementor-widget-heading\" data-id=\"38de7acd\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">SOUND POWER MEASUREMENT<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55bdcfaf elementor-widget elementor-widget-heading\" data-id=\"55bdcfaf\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Our services<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e5fda98 elementor-widget elementor-widget-text-editor\" data-id=\"3e5fda98\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Determination of the sound power level or the emission sound pressure level of plants, machines, devices and assemblies<\/li><li>Sound power measurement according to DIN EN ISO 9614 1-3 by means of sound intensity measurement<\/li><li>Sound power measurement according to DIN EN ISO 3744 \/ 3746 by means of sound pressure measurement<\/li><li>Measurement according to the Outdoor Noise Directive (2000\/14\/EC)<\/li><li>Measurement of emission variables on site<\/li><li>Determination of sound power level for research purposes<\/li><li>Individual determination of the sound power levels for your plant<\/li><li>Advice on the technically correct assessment of your products<\/li><li>Determination of sound emissions for already manufactured products as well as for products in the development phase by means of comparative measurements<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2841d376 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"2841d376\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md elementor-animation-float\" href=\"https:\/\/holo-metrix.com\/en\/technical-acoustic-measurements\/#angebot_einholen_tablet_en\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Request a sound power measurement now!<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f930772 elementor-widget elementor-widget-heading\" data-id=\"f930772\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is the purpose of sound power measurement<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4cfec979 elementor-hidden-desktop elementor-hidden-mobile elementor-widget elementor-widget-text-editor\" data-id=\"4cfec979\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>A quiet machine is a sign of high quality<\/li><li>By means of the sound power measurement it can be determined whether sound insulation is necessary<\/li><li>The Machinery Directive 2006\/42\/EC requires the specification of the airborne sound emission of the machine at the workplace. If the sound pressure level of 80 dB(A) is exceeded, the specification of the sound power is required.<\/li><li>Early detection of damage through noise and vibration measurements<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1736ed33 elementor-widget elementor-widget-heading\" data-id=\"1736ed33\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Methods for sound power determination<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-49da5a36 elementor-widget elementor-widget-text-editor\" data-id=\"49da5a36\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The sound power can be determined in two ways. The distinction is made between sound power determination by means of sound pressure measurement and sound power determination by means of sound intensity measurement.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54ccff5f elementor-widget elementor-widget-heading\" data-id=\"54ccff5f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Sound pressure measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ef50329 elementor-widget elementor-widget-text-editor\" data-id=\"6ef50329\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Sound pressure measurement is characterized by the fact that only the local sound pressure level and all of its disturbance variables is recorded at a measurement location. Thus, we know how loud it is at this local point, but not from which direction the sound is coming. This method is therefore well suited in a quiet measurement environment with little background noise.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21d8966a elementor-widget elementor-widget-heading\" data-id=\"21d8966a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Sound intesity measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73779211 elementor-widget elementor-widget-text-editor\" data-id=\"73779211\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In a measurement environment with potential noise interference, a sound intensity measurement should be performed to determine the sound power. This is particularly useful for stationary systems that are operating in a production hall. In contrast to the sound pressure measurement, the sound intensity is a vectorial quantity, so that the direction of the sound can be determined.<\/p><p>Ambient noise can thus be better detected and excluded from the results. The sound power can therefore usually be determined more accurately by means of sound intensity measurements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f68ef5 gallery-spacing-custom elementor-widget elementor-widget-image-gallery\" data-id=\"6f68ef5\" data-element_type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-2' class='gallery galleryid-1036 gallery-columns-1 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6f68ef5\" data-elementor-lightbox-title=\"Schallfeldkarte\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6ODEwMywidXJsIjoiaHR0cHM6XC9cL2hvbG8tbWV0cml4LmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMTFcL1NjaGFsbGZlbGRrYXJ0ZS0yLmpwZyIsInNsaWRlc2hvdyI6IjZmNjhlZjUifQ%3D%3D\" href='https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2.jpg'><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"172\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-300x172.jpg\" class=\"attachment-medium size-medium\" alt=\"\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-300x172.jpg 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-1024x587.jpg 1024w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-768x440.jpg 768w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-1536x881.jpg 1536w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/11\/Schallfeldkarte-2-2048x1174.jpg 2048w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3276a318 elementor-widget elementor-widget-heading\" data-id=\"3276a318\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Execution of a sound power measurement<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-530cb5c4 elementor-widget elementor-widget-text-editor\" data-id=\"530cb5c4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The sound power is usually determined according to standardized measurement methods. The following pictogram schematically illustrates the general procedure of a sound power measurement.<\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7579 size-full\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Piktogramm_Messung.png\" alt=\"konventioneller Ablauf einer Schallleistungsmessung I Conventional procedure of a sound power measurement\" width=\"800\" height=\"154\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Piktogramm_Messung.png 800w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Piktogramm_Messung-300x58.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Piktogramm_Messung-768x148.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p><ol><li>Preparation<\/li><li>Determine microphone positions<\/li><li>Measurement<\/li><li>Logging<\/li><\/ol><p>\u00a0<\/p><p><strong>Step 1. Preparation:<\/strong><\/p><p>The first step is the selection of the standard according to which the measurement is to be performed. The two series of standards DIN EN ISO 3740 \u2013 3746 and DIN EN ISO 9614 1 \u2013 3 are mainly used for this purpose. The main difference between these two standards is that sound pressure is measured in the 374x series, whereas sound intensity is measured in the 9614 series. However, both series of standards have in common that sound pressure or sound intensity measurements have to be performed at numerous, spatially precisely defined positions. The measurement positions are usually located on an enveloping surface surrounding the measurement object, which can be cuboid, cylindrical or spherical shaped, depending on the underlying standard and sound source. The dimensions of the enveloping surface and the measured sound quantities (Pa or W\/m\u00b2) are finally used to determine the total sound power level.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2cfc6d40 elementor-widget elementor-widget-heading\" data-id=\"2cfc6d40\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Calculation LW for a sound pressure measurement (according to DIN EN ISO 3744):<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b094cf7 elementor-widget elementor-widget-text-editor\" data-id=\"1b094cf7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img decoding=\"async\" class=\"alignnone wp-image-7580 size-full\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744.png\" alt=\"Formel zur Schalldruckbestimmung nach DIN EN ISO 3744 - Schallleistungsmessung I Formula for sound pressure determination according to DIN EN ISO 3744 - Sound power measurement\" width=\"800\" height=\"64\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744.png 800w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744-300x24.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744-768x61.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><img decoding=\"async\" src=\"https:\/\/sp-ao.shortpixel.ai\/client\/to_webp,q_glossy,ret_img,w_600,h_197\/https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744_englisch.png\" alt=\"Parameters of sound pressure determination - sound power measurement\" \/><\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bcbebc6 elementor-widget elementor-widget-heading\" data-id=\"6bcbebc6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Calculation LW for a sound intensity measurement (according to DIN EN ISO 9614-1):<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b6e6c0d elementor-widget elementor-widget-text-editor\" data-id=\"7b6e6c0d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7582 size-full\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1.png\" alt=\"Formel zur Schallintensit\u00e4tsbestimmung DIN EN ISO 9614-1 - Schallleistungsmessung I Formula for determining sound intensity DIN EN ISO 9614-1 - Sound power measurement\" width=\"795\" height=\"81\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1.png 795w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1-300x31.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1-768x78.png 768w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/p><p><img decoding=\"async\" src=\"https:\/\/sp-ao.shortpixel.ai\/client\/to_webp,q_glossy,ret_img,w_600,h_117\/https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1_englisch.png\" alt=\"Parameters of sound intensity determination - sound power measurement\" \/><\/p><p><strong>Step 2. Determine microphone positions:<\/strong><\/p><p>In practice, however, measuring the standard-compliant measuring positions is very time-consuming and in some cases it is even left to the eye of the measuring engineer. Often, self-made constructions or adhesive tape markings on the floor are used to help. With the sound intensity module of our augmented reality software, however, this is no longer necessary. After entering the dimensions of the measurement object, the AR glasses automatically calculate the enveloping surface and the measurement positions and display them with spatial accuracy. The measurement setup can be seen virtually in space and it remains stationary in place. Thus, the measurement engineer can walk around it and conveniently perform the measurement at all virtual positions.<\/p><p><strong>Step 3. Measurement:<\/strong><\/p><p>During the measurement, certain criteria must be observed. A selection of these criteria is listed here:<\/p><ul><li>The levels measured at the respective measuring locations must not vary too much<\/li><li>The background noise must meet certain criteria (e.g. 10dB quieter than the level to be measured)<\/li><li>The measuring equipment must meet certain quality requirements<\/li><\/ul><p><strong>Step 4. Logging:<\/strong><\/p><p>Finally, the logging and the interpretation of the measurement results are carried out. The exact information that must be included in a complete report can be found in the standards mentioned.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ddae86f elementor-widget elementor-widget-spacer\" data-id=\"2ddae86f\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-107f1335 elementor-section-full_width elementor-hidden-desktop elementor-hidden-tablet elementor-section-height-default elementor-section-height-default\" data-id=\"107f1335\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6dc9f930\" data-id=\"6dc9f930\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-149ce2ce elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"149ce2ce\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-6183fbfe\" data-id=\"6183fbfe\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1980c9cb elementor-widget elementor-widget-heading\" data-id=\"1980c9cb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Sound power measurement<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-267f8d65 elementor-widget elementor-widget-heading\" data-id=\"267f8d65\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Our services<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4eca393b elementor-widget elementor-widget-text-editor\" data-id=\"4eca393b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Determination of the sound power level or the emission sound pressure level of plants, machines, devices and assemblies<\/li><li>Sound power measurement according to DIN EN ISO 9614 1-3 by means of sound intensity measurement<\/li><li>Sound power measurement according to DIN EN ISO 3744 \/ 3746 by means of sound pressure measurement<\/li><li>Measurement according to the Outdoor Noise Directive (2000\/14\/EC)<\/li><li>Measurement of emission variables on site<\/li><li>Determination of sound power level for research purposes<\/li><li>Individual determination of the sound power levels for your plant<\/li><li>Advice on the technically correct assessment of your products<\/li><li>Determination of sound emissions for already manufactured products as well as for products in the development phase by means of comparative measurements<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60d771bc elementor-align-center elementor-widget elementor-widget-button\" data-id=\"60d771bc\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md elementor-animation-float\" href=\"https:\/\/holo-metrix.com\/en\/technical-acoustic-measurements\/#angebot_einholen_mobil_en\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Request a sound power measurement now!<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47a9f543 elementor-widget-mobile__width-auto elementor-widget elementor-widget-heading\" data-id=\"47a9f543\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is the purpose of sound power measurement<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-29eaf204 elementor-widget elementor-widget-text-editor\" data-id=\"29eaf204\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>A quiet machine is a sign of high quality<\/li><li>By means of the sound power measurement it can be determined whether sound insulation is necessary<\/li><li>The Machinery Directive 2006\/42\/EC requires the specification of the airborne sound emission of the machine at the workplace. If the sound pressure level of 80 dB(A) is exceeded, the specification of the sound power is required.<\/li><li>Early detection of damage through noise and vibration measurements<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26c5e9e1 elementor-widget elementor-widget-heading\" data-id=\"26c5e9e1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Methods for sound power determination<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4757a900 elementor-widget elementor-widget-text-editor\" data-id=\"4757a900\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The sound power can be determined in two ways. The distinction is made between sound power determination by means of sound pressure measurement and sound power determination by means of sound intensity measurement.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22fa149d elementor-widget elementor-widget-heading\" data-id=\"22fa149d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Sound pressure measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18e26d9a elementor-widget elementor-widget-text-editor\" data-id=\"18e26d9a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Sound pressure measurement is characterized by the fact that only the local sound pressure level and all of its disturbance variables is recorded at a measurement location. Thus, we know how loud it is at this local point, but not from which direction the sound is coming. This method is therefore well suited in a quiet measurement environment with little background noise.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5436ddc2 elementor-widget elementor-widget-heading\" data-id=\"5436ddc2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Sound intesity measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fa68de3 elementor-widget elementor-widget-text-editor\" data-id=\"5fa68de3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In a measurement environment with potential noise interference, a sound intensity measurement should be performed to determine the sound power. This is particularly useful for stationary systems that are operating in a production hall. In contrast to the sound pressure measurement, the sound intensity is a vectorial quantity, so that the direction of the sound can be determined.<\/p><p>Ambient noise can thus be better detected and excluded from the results. The sound power can therefore usually be determined more accurately by means of sound intensity measurements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e70c6e5 elementor-widget elementor-widget-heading\" data-id=\"e70c6e5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Execution of a sound power measurement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64ac2bee elementor-widget elementor-widget-text-editor\" data-id=\"64ac2bee\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The sound power is usually determined according to standardized measurement methods. The following pictogram schematically illustrates the general procedure of a sound power measurement.<\/p><p><img decoding=\"async\" src=\"https:\/\/sp-ao.shortpixel.ai\/client\/to_webp,q_glossy,ret_img\/https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Piktogramm_Messung_english.png\" alt=\"Conventional procedure of a sound power measurement\" \/><\/p><ol><li>Preparation<\/li><li>Determine microphone positions<\/li><li>Measurement<\/li><li>Logging<\/li><\/ol><p>\u00a0<\/p><p><strong>Step 1. Preparation:<\/strong><\/p><p>The first step is the selection of the standard according to which the measurement is to be performed. The two series of standards DIN EN ISO 3740 \u2013 3746 and DIN EN ISO 9614 1 \u2013 3 are mainly used for this purpose. The main difference between these two standards is that sound pressure is measured in the 374x series, whereas sound intensity is measured in the 9614 series. However, both series of standards have in common that sound pressure or sound intensity measurements have to be performed at numerous, spatially precisely defined positions. The measurement positions are usually located on an enveloping surface surrounding the measurement object, which can be cuboid, cylindrical or spherical shaped, depending on the underlying standard and sound source. The dimensions of the enveloping surface and the measured sound quantities (Pa or W\/m\u00b2) are finally used to determine the total sound power level.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-718333b6 elementor-widget elementor-widget-heading\" data-id=\"718333b6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Calculation LW for a sound pressure measurement (according to DIN EN ISO 3744):\n<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5bf97e3d elementor-widget elementor-widget-text-editor\" data-id=\"5bf97e3d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img decoding=\"async\" class=\"alignnone wp-image-7580 size-full\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744.png\" alt=\"Formel zur Schalldruckbestimmung nach DIN EN ISO 3744 - Schallleistungsmessung I Formula for sound pressure determination according to DIN EN ISO 3744 - Sound power measurement\" width=\"800\" height=\"64\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744.png 800w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744-300x24.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744-768x61.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p><p><img decoding=\"async\" src=\"https:\/\/sp-ao.shortpixel.ai\/client\/to_webp,q_glossy,ret_img,w_600,h_197\/https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-3744_englisch.png\" alt=\"Parameters of sound pressure determination - sound power measurement\" \/><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f910cb6 elementor-widget elementor-widget-heading\" data-id=\"5f910cb6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Calculation LW for a sound intensity measurement (according to DIN EN ISO 9614-1):<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71d01ea2 elementor-widget elementor-widget-text-editor\" data-id=\"71d01ea2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7582 size-full\" src=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1.png\" alt=\"Formel zur Schallintensit\u00e4tsbestimmung DIN EN ISO 9614-1 - Schallleistungsmessung I Formula for determining sound intensity DIN EN ISO 9614-1 - Sound power measurement\" width=\"795\" height=\"81\" srcset=\"https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1.png 795w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1-300x31.png 300w, https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1-768x78.png 768w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/p><p><img decoding=\"async\" src=\"https:\/\/sp-ao.shortpixel.ai\/client\/to_webp,q_glossy,ret_img,w_600,h_117\/https:\/\/holo-metrix.com\/wp-content\/uploads\/2021\/10\/Formel-DIN-EN-ISO-9614-1_englisch.png\" alt=\"Parameters of sound intensity determination - sound power measurement\" \/><\/p><p><strong>Step 2. Determine microphone positions:<\/strong><\/p><p>In practice, however, measuring the standard-compliant measuring positions is very time-consuming and in some cases it is even left to the eye of the measuring engineer. Often, self-made constructions or adhesive tape markings on the floor are used to help. With the sound intensity module of our augmented reality software, however, this is no longer necessary. After entering the dimensions of the measurement object, the AR glasses automatically calculate the enveloping surface and the measurement positions and display them with spatial accuracy. The measurement setup can be seen virtually in space and it remains stationary in place. Thus, the measurement engineer can walk around it and conveniently perform the measurement at all virtual positions.<\/p><p><strong>Step 3. Measurement:<\/strong><\/p><p>During the measurement, certain criteria must be observed. A selection of these criteria is listed here:<\/p><ul><li>The levels measured at the respective measuring locations must not vary too much<\/li><li>The background noise must meet certain criteria (e.g. 10dB quieter than the level to be measured)<\/li><li>The measuring equipment must meet certain quality requirements<\/li><\/ul><p><strong>Step 4. Logging:<\/strong><\/p><p>Finally, the logging and the interpretation of the measurement results are carried out. The exact information that must be included in a complete report can be found in the standards mentioned.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-9dbf589 elementor-widget elementor-widget-spacer\" data-id=\"9dbf589\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>SOUND POWER MEASUREMENT Our services Determination of the sound power level or the emission sound pressure level of plants, machines, devices and assemblies Sound power measurement according to DIN EN ISO 9614 1-3 by means of sound intensity measurement Sound power measurement according to DIN EN ISO 3744 \/ 3746 by means of sound pressure [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1036","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/holo-metrix.com\/en\/wp-json\/wp\/v2\/pages\/1036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/holo-metrix.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/holo-metrix.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/holo-metrix.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/holo-metrix.com\/en\/wp-json\/wp\/v2\/comments?post=1036"}],"version-history":[{"count":116,"href":"https:\/\/holo-metrix.com\/en\/wp-json\/wp\/v2\/pages\/1036\/revisions"}],"predecessor-version":[{"id":11463,"href":"https:\/\/holo-metrix.com\/en\/wp-json\/wp\/v2\/pages\/1036\/revisions\/11463"}],"wp:attachment":[{"href":"https:\/\/holo-metrix.com\/en\/wp-json\/wp\/v2\/media?parent=1036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}