Simple Performance Evaluation Using an Anechoic Box and Sound Level Meter<\/p>\n\n\n\n
An anechoic box is a high-performance sound-insulating enclosure designed for acoustic measurements.
It is primarily used for testing the acoustic characteristics of low-noise components, such as precision drive units.<\/p>\n\n\n\n
As a general guideline, the ambient noise level in the measurement environment should be at least 10 dB lower than the sound pressure level (SPL) of the Device Under Test (DUT).<\/p>\n\n\n\n
For example, to measure a 30 dB sound, the background noise should be 20 dB or lower.
In other words, the quieter the environment, the smaller the sound that can be accurately measured.<\/p>\n\n\n\n
Below is the actual background noise data (A-weighted) measured inside one of our anechoic boxes:<\/p>\n\n\n\n With a background noise level of 3.5 dB(A) inside the box, the minimum SPL that can be reliably measured would be approximately 13.5 dB(A).<\/p>\n\n\n\n To achieve such low background noise, careful selection of the installation environment is crucial. Simple Performance Evaluation Using an Anechoic Box and Sound Level Meter An anechoic box is a high-performance sound-insulating enclosure designed for acoustic measurements.It is primarily used for testing the acoustic characteristics of low-noise components, such as precision drive units. As a general guideline, the ambient noise level in the measurement environment should be at least […]<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","solution_cat":[4],"class_list":["post-745","technology","type-technology","status-publish","hentry","solution_cat-tax_aeb","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/technology\/745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/technology"}],"about":[{"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/types\/technology"}],"wp:attachment":[{"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/media?parent=745"}],"wp:term":[{"taxonomy":"solution_cat","embeddable":true,"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/solution_cat?post=745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Frequency (Hz)<\/th> 63<\/th> 125<\/th> 250<\/th> 500<\/th> 1000<\/th> 2000<\/th> 4000<\/th> 8000<\/th> Overall (dBA)<\/th><\/tr><\/thead> Background Noise<\/th> -17.6<\/td> -17.3<\/td> -14.9<\/td> -9.8<\/td> -5.8<\/td> -3.7<\/td> -3.7<\/td> -4.1<\/td> 3.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
We provide tailored solutions to meet each customer\u2019s specific measurement needs.<\/p>\n","protected":false},"excerpt":{"rendered":"