Apparatus and method for measuring the acoustic properties of acoustic absorbers
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United States of America Patent
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-
Sep 19, 2000
Grant Date -
N/A
app pub date -
Apr 20, 1998
filing date -
Apr 20, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for measuring the acoustic absorption properties of materials such as liners for jet engines has a first housing, an acoustic driver configured to provide acoustic energy to the first housing, a second housing attached to the first housing, and an acoustic driver configured to provide acoustic energy to the second housing. Acoustic sensors are used to measure the acoustic energy emitted from the two housings and to measure the absorption of each of the housings.
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