| 发明名称 |
ACOUSTIC TRANSDUCER |
| 摘要 |
<p>An acoustic transducer comprising a transmitter consisting of a plate of piezoelectric ceramic material and a pair of electrodes and an adaptation layer which comprises a receiver consisting of a layer of piezoelectric or ferroelectric polymer material with a pair of electrodes. As a result, optimum operation of the transducer is possible during transmission as well as during reception.</p> |
| 申请公布号 |
EP0021534(B1) |
申请公布日期 |
1983.03.30 |
| 申请号 |
EP19800200585 |
申请日期 |
1980.06.19 |
| 申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
VAN MAANEN, GERARDUS ANDREAS |
| 分类号 |
G10K11/02;H04R17/00;(IPC1-7):10K11/02;04R17/00 |
主分类号 |
G10K11/02 |
| 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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