Acoustic electrical conversion device with at least one capacito

Details Acoustic electrical conversion device with at least one capacito Acoustic electrical conversion device with at least one capacito

1979-03-13

1981-08-25

Konick, Bernard

179132, H04R 1900, H04R 2102

Patent

active

042861225

ABSTRACT:
A device for the conversion of acoustic vibrations into electrical waves and vice versa, comprising at least one capacitor electret element which is connected to an electronic circuit which comprises an impedance transformer. The electret element includes at least one foil of a dielectric polymer material with at least one electrode arranged thereon with a part of the foil extending beyond the electret element. The electronic circuit is in the form of an integrated semiconductor device disposed on this part of the foil with the electrode electrically connected to one terminal of the semiconductor device via a conductor arranged on the foil. The foil may comprise a special pattern of conductors and electrodes, to which the integrated semiconductor device is connected. The assembly can be folded to provide a plurality of transducers in the form of a connector pin.

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