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Convention Paper

Equalizing Force Contributions in Transducers with a Partitioned Electrode

Authors: Husník, Libor

AES Convention 128 · Paper 8000 · May 2010

Abstract

A partitioned electrode in an electrostatic transducer can present among others a possibility for making the transducer with the direct D/A conversion. Nevertheless, partitioned electrodes, the sizes of which are proportional to powers of 2 or terms of other convenient series, do not have the corresponding force action on the membrane. The reason is the membrane does not vibrate in a piston-like mode and electrode parts close to the membrane periphery do not excite membrane vibrations in the same way as the elements near the center. The aim of this work is to suggest the way of equalization of force contributions from different partitioned electrodes by varying their sizes. Principles presented here can also be used for other membrane-electrode arrangements.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
8000
Publication date
May 6, 2010
Session subject
Audio Equipment and Emerging Technologies
Affiliation
Czech Technical University in Prague, Faculty of Electrical Engineering, Prague, Czech Republic (See document for exact affiliation information.)
Type
Convention Paper