Electret transducer

Details Electret transducer Electret transducer

1975-03-11

1977-04-05

Claffy, Kathleen H.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307 88ET, H04R 1900, H01G 702

Patent

active

040163750

ABSTRACT:
An electrostatic transducer, provided with at least two electrodes arranged opposite each other, of which one electrode forms part of a diaphragm and of which the other electrode is fixed, a disc of an electret material being disposed between the electrodes and at one of the electrodes, which electret material consists of a polymer of tetrafluoroethylene and perfluorine (alkylvinylether), in which the alkylgroup contains from 1 to 5 carbon atoms.
This yields the advantage that when employed as a diaphragm said foil is extremely suited for use in loudspeakers and larger microphones.

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