发明名称 |
Piezoelectric knock sensor |
摘要 |
A piezoelectric knock sensor has a case comprising a mounting stud, flexing plate and cover. The flexing plate has a surface provided with a plurality of raised radial ridges. A piezoelectric disk is affixed to the surface with an adhesive and abuts the ridges for improved strain transmission and reliable electrical ground contact. A spring contact further biases the disk against the ridges during assembly bonding of the adhesive; and excess adhesive can flow radially outward between the ridges.
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申请公布号 |
US4393688(A) |
申请公布日期 |
1983.07.19 |
申请号 |
US19810322989 |
申请日期 |
1981.11.19 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
JOHNSTON, DANIEL U.;SHINKLE, GEORGE A. |
分类号 |
G01L23/22;G01P15/09;(IPC1-7):G01L23/22 |
主分类号 |
G01L23/22 |
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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