发明名称 |
Piezoelectric transducer |
摘要 |
A piezoelectric transducer including a member composed of at least two superposed plastics layers at least one of which is piezoelectric, the said at least one piezoelectric layer being sandwiched in an untensioned state between two electrically conducting electrodes; and support means for the said member which are adapted to form at least one transducer element from the said member.
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申请公布号 |
US4156800(A) |
申请公布日期 |
1979.05.29 |
申请号 |
US19760742059 |
申请日期 |
1976.11.15 |
申请人 |
PLESSEY HANDEL UND INVESTMENTS AG |
发明人 |
GARNER, GEOFFREY M;SEAR, JOHN F |
分类号 |
H04R1/40;H04R17/00;H04R17/02;(IPC1-7):H04R17/00;B06B1/06;H04R17/10 |
主分类号 |
H04R1/40 |
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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