DS/EN ISO 3744-2011

Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane

DS/EN ISO 3744-2011 发布历史

This standard specifies methods for determining the sound power level or sound energy level ofa noise source from sound pressure levels measured on a surface enveloping the noise source (machinery or equipment) in an environment that approximates to an acoustic free-field near one or more reflecting planes.The sound power level (or, in the case of noise bursts or transient noise emission, the sound energy level) produced by the noise source, in frequency bands or with frequency-weighting A applied, is calculated using those measurements.

DS/EN ISO 3744-2011由丹麦标准化协会 DK-DS 发布于 2011-02-11，并于 2011-02-11 实施。

DS/EN ISO 3744-2011在国际标准分类中归属于: 17.140.01 声学测量和噪声抑制综合。

DS/EN ISO 3744-2011的历代版本如下：

• 2011年02月11日 DS/EN ISO 3744-2011

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标准号

DS/EN ISO 3744-2011

发布日期

2011年02月11日

实施日期

2011年02月11日

废止日期

无

国际标准分类号

17.140.01

发布单位

DK-DS

被代替标准

DS/EN ISO 3744-2009 DS/ISO 4872-1978

适用范围

This standard specifies methods for determining the sound power level or sound energy level ofa noise source from sound pressure levels measured on a surface enveloping the noise source (machinery or equipment) in an environment that approximates to an acoustic free-field near one or more reflecting planes.The sound power level (or, in the case of noise bursts or transient noise emission, the sound energy level) produced by the noise source, in frequency bands or with frequency-weighting A applied, is calculated using those measurements.