发明名称 |
Thin film, thermoplastic piezoelectric switches |
摘要 |
A piezoelectric switch is disclosed for providing a continuous output in response to a contact pressure. An oscillator is brought into contact with a thermoplastic piezoelectric film, having electrodes on both surfaces thereof, via an elastic wave absorbing member.The oscillations cause constantly changing stress in the film, resulting in a constantly varying electric field between the electrodes. The magnitude of the electric field depends on the contact pressure between the oscillator and the piezoelectric element.
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申请公布号 |
US4137475(A) |
申请公布日期 |
1979.01.30 |
申请号 |
US19770835925 |
申请日期 |
1977.09.23 |
申请人 |
KUREHA KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
YOSHIDA, MASAFUMI;MURAYAMA, NAOHIRO |
分类号 |
H01L41/047;H01L41/113;H03K17/96;(IPC1-7):H01L41/10 |
主分类号 |
H01L41/047 |
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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