1981-02-01

Recent Developments in the Measurement of Acoustic Intensity using the Cross-Spectral Method 810396

In recent years, the use of the cross-spectral method of measuring acoustic intensity has been shown effective in noise-source-ranking and noise-source-identification. Using a computerized data acquisition and analysis procedure, the method is efficient and accurate. Its applicability to a near-field and/or reverberant-field measurement enables the method to be used in situ. The method has a potential of replacing many conventional acoustical measurements, but results of many parametric studies of the method are not known to many interested noise control engineers. These parametric studies, in addition to a general review of the method, are presented in this paper.

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