BS 4196-7(1988) : 1988被替代
SOUND POWER LEVELS OF NOISE SOURCES - SURVEY METHOD FOR DETERMINATION OF SOUND POWER LEVELS OF NOISE SOURCES USING A REFERENCE SOUND SOURCE
出版：British Standards Institution
专家解读视频
Explains a survey method for measuring the sound pressure levels produced at specified measurement points by the noise source under test and by a reference sound source. The sound power level of the source under test is calculated from the measured values of the sound pressure level by using environmental corrections. These corrections are calculated from the differences between the values obtained with a reference sound source and those given by its calibration. Different microphone arrays and different positions for the reference sound source are given for different acoustical situations, depending on the size of the source under test as well as the size, number and orientation of the reflecting planes situated in proximity to the source under test.
ISO 3747:2010(R2015) - Identical
