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Acoustics — Determination of sound power levels of noise sources using sound pressure — Precision methods for anechoic and hemi-anechoic rooms

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분야	ISO/TC 43/SC 1 : Noise
적용범위	ISO 3745:2003 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. The methods specified in ISO 3745:2003 are suitable for measurements of all types of noise. The noise source can be a device, machine, component or sub-assembly. The maximum size of the source under test depends on the radius of the hypothetical sphere (or hemisphere) used as the enveloping measurement surface.
국제분류(ICS)코드	17.140.01 : 음향 측정 및 소음 감소 일반
페이지수	43
Edition	2

No.	표준번호	표준명	발행일	상태
1	ISO 3745:2012/Amd 1:2017	Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms — Amendment 1	2017-04-04	표준
2	ISO 3745:2012	Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms	2012-03-16	표준
3	ISO 3745:2003	Acoustics — Determination of sound power levels of noise sources using sound pressure — Precision methods for anechoic and hemi-anechoic rooms	2003-11-25	구판
4	ISO 3745:1977	Acoustics — Determination of sound power levels of noise sources — Precision methods for anechoic and semi-anechoic rooms	1977-05-01	구판