<p>Method and apparatus for engine and rotary machine analysis provides a vibration sensor adapted to produce a plurality of superimposed waveforms corresponding to engine or machine operating parameters including rotational speed. Alternatively, exhaust gas pressure sensing may be used to obtain a corresponding waveform pattern. The pattern of waveforms is analysed, for example using a fast fourier transform technique whereby the characteristic pattern of waveforms can be identified and recognised. Changes in pattern can be used to assess the state of wear of a machine. <IMAGE></p>
申请公布号
EP1050863(A2)
申请公布日期
2000.11.08
申请号
EP20000117257
申请日期
1996.01.24
申请人
SNAP-ON EQUIPMENT LIMITED
发明人
GEE, BERNARD;HOEDE, CHRISTIAAN;HOTCHKISS, ALASTAIR J.;JONES, BARBARA L.;SMITH, PAUL