发明名称 |
Combined vibration and temperature sensor |
摘要 |
A combined vibration and temperature sensor for an internal combustion engine comprises a piezoelectric disc in mechanical and thermal contact with an engine throttle body and connected electrically in series with an impedance effective to form a voltage divider having a predetermined normalized voltage output at a reference temperature and 50 kilohertz. A 50 kilohertz voltage source is connected across the voltage divider and the vibration signal output provides a temperature signal at 50 kilohertz and an engine vibration signal at a lower frequency such as 5-7 kilohertz.
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申请公布号 |
US4476711(A) |
申请公布日期 |
1984.10.16 |
申请号 |
US19830487452 |
申请日期 |
1983.04.21 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
GUTTERMAN, JEFFREY S. |
分类号 |
G01K7/32;G01L19/00;G01L23/22;(IPC1-7):G01M15/00 |
主分类号 |
G01K7/32 |
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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