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Convention Paper

Frequency Response of an Electrostatic Horn-Tweeter with Electret

Authors: Sakamoto, Naraji; Gotoh, Toshiyuki; Atoji, Nobuhisa; Aoi, Takahisa

AES Convention 52 · Paper 1064 · October 1975

Abstract

The practical design method of electrostatic loudspeakers with D. C. basis is known. In this paper, the frequency characteristics and the efficiency of horn-loaded electret tweeter are presented. The tweeter has a very thin diaphragm (palladium is vacuum-evaporated on polyester of 4µ thick) between two perforated back plates on which perforated electret films (125µ thick) are laminated. Its frequency response mainly depends upon the ratio of the surface area of the perforated electret to the area of the diaphragm (called perforating ratio). Regarding this characteristic of dependence, the results of analysis and experiments are given to clarify the various characteristics of horn-loaded electret tweeter.

Details

Published in
AES Convention 52
AES Convention
52
Paper number
1064
Publication date
October 6, 1975
Affiliation
ACOUSTIC RESEARCH LABORATORY, MATSUSHITA ELBCTRIC INDUSTRIAL CO. , LTD., KADOMA, OSAKA, JAPAN (See document for exact affiliation information.)
Type
Convention Paper