Intensity-modulated fiber-optic microphone

Intensity-modulated fiber-optic microphone

A fiber-optic microphone has been developed that can detect low acoustic sound pressure levels. The microphone is an extrinsic intensity-modulated fiber-optic level sensor. The optical mechanisms involved and the effect on performance of fiber placement with respect to the optical element will be di...

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Veröffentlicht in:The Journal of the Acoustical Society of America 1992-10, Vol.92 (4_Supplement), p.2293-2293
Hauptverfasser: Stec, James P., Buchholz, Jeffrey C., Gunseor, Larry A., McKinley, Richard L., McCavitt, Angela R.
Format: Artikel
Sprache:eng
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Zusammenfassung:A fiber-optic microphone has been developed that can detect low acoustic sound pressure levels. The microphone is an extrinsic intensity-modulated fiber-optic level sensor. The optical mechanisms involved and the effect on performance of fiber placement with respect to the optical element will be discussed. Plots of frequency response, sensitivity, and a tape recording made using the microphone will be presented.
ISSN:0001-4966
DOI:10.1121/1.405141