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Phase shift errors in the theory and practice of surface intensity measurementsThe surface acoustical intensity method (sometimes known as the microphone-accelerometer cross-spectral method) is a relatively new noise source/path identification tool. Several researchers have had difficulties implementing this method because of instrumentation phase mis-match. A simple technique for measuring and correcting instrumentation phase mis-match has been developed. This new technique has been tested recently on a noise source identification problem of practical interest. The results of the experiments indicate that the surface acoustic intensity method produces reliable data and can be applied to a variety of noise source/path problems.
Document ID
19820052658
Document Type
Reprint (Version printed in journal)
Authors
Mcgary, M. C. (NASA Langley Research Center Hampton, VA, United States)
Crocker, M. J. (Purdue University West Lafayette, IN, United States)
Date Acquired
August 10, 2013
Publication Date
May 22, 1982
Publication Information
Publication: Journal of Sound and Vibration
Volume: 82
Subject Category
ACOUSTICS
Distribution Limits
Public
Copyright
Other