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Recent Developments in the Measurement of Acoustic Intensity using the Cross-Spectral Method
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English
Abstract
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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Authors
Citation
Chung, J. and Blaser, D., "Recent Developments in the Measurement of Acoustic Intensity using the Cross-Spectral Method," SAE Technical Paper 810396, 1981, https://doi.org/10.4271/810396.Also In
References
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- “Standard Test Method for Impedance, and Absorption of Acoustical Materials by the Tube Method,” ANSI/ASTM C384-77 1977
- Chung J. Y. “Cross-spectral Method of Measuring Acoustic Intensity Without Error Caused by Instrument Phase Mismatch.” Journal of the Acoustical Society of America 64 6 1978
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- Donavan P. R. Oswald L. J. “The Identification and Quantification of Truck Tire Noise Sources Under On-road Operating Conditions.” Proceedings of the Inter-Noise Conference December 1980
- Blaser D. A. Chung J. Y. “A Transfer Function Technique for Determining the Acoustic Characteristics of Duct Systems with Flow.” Proceedings of the Inter-Noise Conference May 1978