This Standard specifies methods for measuring the sound pressure levels on a measurement surface enveloping a noise source in anechoic and hemi-anechoic rooms, in order to determine the sound power level or sound energy level produced by the noise source. It gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level from which the sound power level or sound energy level is calculated, leading to results which have a grade 1 accuracy.
Số hiệu tiêu chuẩn
DIN EN ISO 3745 Berichtigung 1
Tên tiêu chuẩn
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms (ISO 3745:2003); German version EN ISO 3745:2003, Corrigenda to DIN EN ISO 3745:2004-05; German version EN ISO 3745:2003/AC:2006
Ngày phát hành
2007-02-00
Tiêu chuẩn tương đương
EN ISO 3745/AC (2006-01), IDT
Từ khóa
Acoustic measurement * Acoustics * Closed test rooms * Enveloping surface methods * Laboratory testing * Laboratory tests * Mathematical calculations * Measurement * Measuring techniques * Noise (environmental) * Noise measurements * Noise sources * Reflection * Reverberation rooms * Sound energy * Sound intensity * Sound level * Sound levels * Sound power * Sound pressure * Sound pressure level * Sound sources
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DIN EN ISO 3745 Berichtigung 1
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