复杂声源点源间距对声功率级测量精度的研究
首发时间:2019-05-10
摘要:针对复杂声源声功率级测量精度的问题,基于声压法测量噪声声功率级,通过仿真,讨论复杂声源模型中点源间距对声压法测量声功率级精度的影响,通过对仿真结果进行分析,以达到在使用声压法进行声功率级测量时,可以针对复杂声源不同的点源间距,对测量结果进行修正,提高声功率级测量精度的目的。
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Research on Accuracy of Acoustic Power Level Measurement by Point Source Spacing in Complex Source
Abstract:Aiming at the problem of measurement accuracy of sound power level of complex sound source, based on the measurement of noise power level by sound pressure method, the influence of point source spacing in complex sound source model on measurement accuracy of sound power level by sound pressure method is discussed through simulation. The simulation results are analyzed to achieve that when using sound pressure method to measure sound power level, different point source spacing of complex sound source can be used to measure sound power level. The results are revised to improve the accuracy of sound power level measurement.
Keywords: Sound pressure method Sound power level Complex sound source Point source spacing Measurement accuracy
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