Non-invasive vibro-acoustic analysis
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United States of America Patent
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Nov 25, 2014
Grant Date -
Jul 19, 2007
app pub date -
Nov 30, 2006
filing date -
Dec 2, 2005
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Abstract
A system provides an in situ or non-invasive vibro-acoustic (VA) analysis of an arbitrary complex vibrating structure. The noise diagnostic system includes a plurality of first transducers for measuring acoustic pressure in a sound field near a noise source. At least one second transducer measures normal surface velocity on the noise source. A computer acquires acoustic pressure data from the plurality of first transducers and normal surface velocity data from the at least one second transducer. The computer generates a transfer matrix representing a correlation between normal surface velocity on the noise source and the acoustic pressure in the sound field.
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