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声强测量是声学测量领域的一项新技术。本文研究了空气中声强测量的一般方法,通过对国产Yxx型飞机舱室的声强测量,对声强测量的优点及测量中应注意的问题做了分析。本文还给出了Yxx型飞机舱内部分位置的声强等值线图以及由声强分布解算出各表面辐射或吸收的声功率数值和声源与声汇的位置。
Acoustic intensity measurement is a new technology in the field of acoustic measurement. This paper studies the general method of sound intensity measurement in air. Through the sound intensity measurement of domestic Yxx aircraft cabin, the advantages of sound intensity measurement and the problems to be noticed in the measurement are analyzed. This paper also gives the contour map of the sound intensity at some positions in the Yxx aircraft cabin and the sound power values and the positions of the sound source and the sound emission calculated or calculated by the sound intensity distribution on each surface.