发明名称 |
Bearing defect detection using time synchronous averaging (TSA) of an enveloped accelerometer signal |
摘要 |
A method is provided of identifying a rotating bearing defect featuring the steps of measuring the vibration of the rotating bearing to obtain a waveform signal; filtering the waveform signal to remove unwanted signal frequencies; enveloping the filtered waveform signal to obtain an enveloped low frequency time waveform; and synchronizing the enveloped low frequency time waveform to the running speed of the rotating bearing in such a way to preserve the phase relationship between the tachometer pulse and bearing defect to obtain a time synchronized waveform. The method may include the step of measuring the rotational speed of the rotating bearing; and the step of measuring the rotational speed of the rotating bearing comprises measuring the rotational speed of the rotating bearing with a tachometer.
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申请公布号 |
US6681634(B2) |
申请公布日期 |
2004.01.27 |
申请号 |
US20010014044 |
申请日期 |
2001.12.11 |
申请人 |
ITT MANUFACTURING ENTERPRISES, INC. |
发明人 |
SABINI EUGENE P.;LORENC JEROME A.;HENYAN OAKLEY;HAUENSTEIN KENNETH L. |
分类号 |
G01H1/00;G01N29/14;G01N29/42;(IPC1-7):G01M13/04 |
主分类号 |
G01H1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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