APPARATUS AND METHOD FOR DETECTING DAMAGE TO A MACHINE
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United States of America Patent
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Issued Date -
Jan 27, 2011
app pub date -
Apr 17, 2009
filing date -
Apr 18, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus for detecting damage to a machine that is excited at a previously known frequency by a vibration exciter, including an acceleration sensor for recording a current amplitude spectrum of an upper mass. A previously known amplitude spectrum of the upper mass is stored in a memory device. The current amplitude spectrum is compared with the previously known amplitude spectrum in a comparison device. If the comparison device determines that the spectra differ from one another, a corresponding deviation signal is generated and is output via a display device for informing the operator in order to inform the latter of possible damage.
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