High pressure low impedance electrostatic transducer

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element

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381174, H04R 2500

Patent

active

054504988

ABSTRACT:
An electrostatic transducer in which two sheets are separated by a gas-filled gap. The sheets have conductive surfaces for imposing electric fields within the gap when an electrical potential is applied across the sheets. A flexible positioning mechanism between the sheets maintains the gap at a desired time-averaged thickness. The gap is made up of a plurality of thick regions and a plurality of thin regions. Both regions have a total projected area which is a substantial portion of the total area of one of the sheets. The average thickness of the gap in the thick regions is at least ten times greater than the gap's average thickness in the thin regions. The electrostatic field energy of the electric fields is concentrated in the thin regions.

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