Microphones

Electrostatic microphone
Microphones

Author : Jacques JOUHANEAU

Review date: January 1, 2020 | Lire en français

Add to my library

3. Electrostatic microphone

3.1 Operating principle

Two metal armatures of surface area S placed face to face at a distance d from each other form a planar capacitor (figure 17) of capacitance : $C = ε \frac{S}{d}$

ε is the permittivity of the interelectrode space and is equal to :

$ε_{0} = \frac{1}{36 π \times 10^{9}}$

for vacuum...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource. Click here to request your free trial access!

Already subscribed? Log in!

Ongoing reading
Electrostatic microphone

Previous
page Electrodynamic moving-coil microphone

Electret microphone

References

General works

Books

(1) - EARGLE (J.) - The Microphone Handbook. - Elar Publ., New York (1981).
(2) - HUNT (F. V.) - Electroacoustics. - 1954, Harvard University Press, Cambridge. Reprinted by Acoustical Society of America (1982).
(3)...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource. Click here to request your free trial access!

Already subscribed? Log in!

Article included in this offer

"Signal processing and its applications"

( 159 articles )

Complete knowledge base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

View offer details

Electrostatic microphone Microphones