发明名称 |
Signal processing device for piezoelectric sensor |
摘要 |
A signal processing device is provided which is designed to process an output of a piezoelectric sensor to produce a signal which indicates a load applied to the piezoelectric sensor accurately without being affected adversely by leakage current occurring in the piezoelectric sensor and electrical disturbances. The signal processing device includes a differentiating circuit which differentiates the output of the piezoelectric sensor and an integrating circuit which integrates an output of the differentiating circuit to produce an output signal as a function of the output of the piezoelectric sensor. The frequency range of the output signal is selected based on a frequency range of the load applied to the piezoelectric sensor.
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申请公布号 |
US2001052337(A1) |
申请公布日期 |
2001.12.20 |
申请号 |
US20010873452 |
申请日期 |
2001.06.05 |
申请人 |
SUZUKI TOSHIYUKI;KUROKAWA EIICHI;MURAI HIROYUKI |
发明人 |
SUZUKI TOSHIYUKI;KUROKAWA EIICHI;MURAI HIROYUKI |
分类号 |
F02D45/00;G01L23/10;G01M15/04;(IPC1-7):F02M7/00 |
主分类号 |
F02D45/00 |
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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