Electromechanical transducers

Details Electromechanical transducers Electromechanical transducers

1978-06-29

1981-02-10

Moffitt, James W.

Electrical transmission or interconnection systems

Electrets

179111E, H01G 702, H04R 1900

Patent

active

042504155

ABSTRACT:
The invention relates to electromechanical transducers comprising an electret 4 between two electricity conducting electrodes 1 and 2. A solid intermediate layer 7 having a different deformability from that of the electret is placed between said electret and an electrode, the material forming said layer having an electrical resistivity higher than 10.sup.15 ohms.cm (for instance a silicone elastomer) and said layer having a smooth and continuous face in intimate contact with the whole of the useful area of the charged face of the electret.

REFERENCES:
patent: 3736436 (1973-05-01), Crites
patent: 3967027 (1976-06-01), Igarashi et al.

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