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Book Chapter

Motional Impedance Analysis Applied to a Dynamic Microphone

By
J. E. White
J. E. White
Defense Research Laboratory, University of Texas, Austin, Texas
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Published:
January 01, 2000
Publication history
04 May 1946

Abstract

An article by R. D. Fay presents a method for calculating the complete performance at any frequency of an electro-magnetic speaker from a plot of its electrical impedance measured when the speaker is loaded by a closed air column of variable length. The present article applies this method to a dynamic microphone, yielding pressure sensitivity at lower audiofrequencies and providing a means of calculating microphone mechanical impedance and other characteristics. Improvement in accuracy which may be achieved by proper choice of area for closed air column is discussed.

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Society of Exploration Geophysicists Geophysics Reprint Series

Seismic Wave Propagation: Collected Works of J. E. White

J. E. White
J. E. White
Professor Emeritus, Colorado School of Mines
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Society of Exploration Geophysicists
Volume
21
ISBN electronic:
9781560802471
Publication date:
January 01, 2000

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