发明名称 |
PIEZOELECTRIC SENSING SYSTEMS |
摘要 |
A piezoelectric sensing system is disclosed wherein a vibrating piezoelectric sensing element (50) is driven by a periodic drive signal at or close to the resonant frequency of the sensing element, and wherein a return signal from the sensing element is monitored to detect a shift in the resonant frequency.
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申请公布号 |
CA2188547(A1) |
申请公布日期 |
1995.11.02 |
申请号 |
CA19952188547 |
申请日期 |
1995.04.25 |
申请人 |
SENSOR SYSTEMS (JERSEY) LIMITED |
发明人 |
CASSELDEN, IAN |
分类号 |
G01F23/22;G01F23/296;G01N29/036;(IPC1-7):G01F23/296;G01N29/02 |
主分类号 |
G01F23/22 |
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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