Acoustic-based rotating component analysis
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United States of America Patent
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Dec 4, 2012
Grant Date -
Jun 24, 2010
app pub date -
Dec 18, 2009
filing date -
Dec 18, 2008
priority date (Note) -
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Abstract
An acoustic sensor acquires acoustic data corresponding to a rotating component of a machine during operation of the machine. The acoustic sensor can be configured to enhance acoustic signals in a range of frequencies corresponding to at least one evaluated condition of the rotating component and/or enhance the acoustic signals received from a directional area narrowly focused on the rotating component. The rotating component is evaluated using the acoustic data acquired by the acoustic sensor. In an embodiment, the machine can be a vehicle traveling past a parabolic microphone. In a more specific embodiment, the vehicle is a rail vehicle and the rotating component is a railroad wheel bearing.
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