发明名称 |
PIEZOELECTRIC TRANSDUCERS WITH MECHANICAL AMPLIFICATION FOR VERY LOW FREQUENCIES AND ACOUSTIC ANTENNAS |
摘要 |
A new piezoelectric transducer incorporated with a mechanical amplifier is described. The transducer comprises a rigid base plate; two lateral plates whose lower edge is connected to the plate by a thin portion; a stack of piezoelectric elements having alternate electrodes; a horn formed of a flexible elastic diaphragm which connects together the upper edges of the two plates; an enclosure and a sealing skin which is acoustically transparent. The tranducer is capable of emitting or receiving high power acoustic waves of very low frequencies including for instance, a few Hertz to 500 Hz. |
申请公布号 |
DE2960263(D1) |
申请公布日期 |
1981.05.07 |
申请号 |
DE19792960263 |
申请日期 |
1979.05.08 |
申请人 |
ETAT-FRANCAIS REPRESENTE PAR LE DELEGUE GENERAL POUR L'ARMEMENT |
发明人 |
TOCQUET, BERNARD |
分类号 |
G10K9/12;G10K11/08;(IPC1-7):H04R17/00 |
主分类号 |
G10K9/12 |
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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