发明名称 |
Apparatus and method for detecting vibration patterns. |
摘要 |
<p>An electronic detection system for detecting vibration patterns from physical events, such as engine knocking or articulated speech, senses a vibration source with a wideband transducer to provide a sensed signal, then converts this signal to energy amplitude and spectral frequency form to extract detectable features of the vibration pattern. Events are detected when a controller determines that the sensed energy and spectral data exceed adaptively-predetermined energy and spectral thresholds, preferably for a duration exceeding predefined time windows. <IMAGE></p> |
申请公布号 |
EP0529786(A2) |
申请公布日期 |
1993.03.03 |
申请号 |
EP19920306366 |
申请日期 |
1992.07.10 |
申请人 |
LORAL AEROSPACE CORPORATION |
发明人 |
GRAJSKI, KAMIL A.;CHEN, CARSON;CHINN, GARRY |
分类号 |
F02D35/00;F02D45/00;F02P5/152;G01H17/00;G01L23/22 |
主分类号 |
F02D35/00 |
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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