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A new microphone based on an optical measuring principle

โœ Scribed by K. Budal

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
302 KB
Volume
36
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

A new type of microphone is described. The measurements on a microphone prototype with a membrane diameter of 7 mm show the following results: flat frequency response from zero Hz (if required) to 20 kHz, sensitivity 60 mV/N/m 2, output can be loaded with a resistance as low as 600 s distortion satisfies requirements for a high quality microphone, the sound pressure level range is from 44 dB(C) to 131 dB(C). The measuring principle makes sensitivity rather independent of microphone size.

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