Continuous strip electret transducer array

Details Continuous strip electret transducer array Continuous strip electret transducer array

1981-11-20

1984-01-31

Pellinen, A. D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

179111R, 307400, 29592E, H04R 1900

Patent

active

044291906

ABSTRACT:
A rough surfaced backplate has deposited thereon a metallic electrode having a plurality of large areas interconnected by thin strips. The large areas are symmetrically located on opposite sides of the center of the metallic electrode. Furthermore, the distances between the areas is nonlinear. Superimposed on the metallic electrode is an electret foil having a uniform electrostatic charge deposited on the polymer surface thereof.

REFERENCES:
patent: 3588382 (1971-06-01), Reedyk
patent: 3908098 (1975-09-01), Kawakami et al.
"Electrostatic Microphones with Electret Foil," G. M. Sessler, The Journal of the Acoustical Society of America, Sep. 1963, vol. 35, No. 9, pp. 1354-1357.

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