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Proceedings Paper

Distributed fiber optic acoustic sensor
Author(s): Yuri N. Kulchin; Oleg B. Vitrik; Yuri S. Petrov; Oleg V. Kirichenko
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Paper Abstract

The principles of operation of distributed fiber-optic seismoacoustic sensor based on intermode interference in low mode fibers are studied. A model of this sensor for seismo-acoustic vibrations registration was made and tested. This sensor has the following performances: working frequency band is 2 - 40 Hz, transformation coefficient is 1.5 mV(DOT)s2/m at frequency 20 Hz, sensitivity threshold is 1.6(DOT)10-3 m/s2, sensor length is 100 m. Interferometric procedures of signal forming and processing were researched.

Paper Details

Date Published: 21 September 1994
PDF: 4 pages
Proc. SPIE 2294, Distributed and Multiplexed Fiber Optic Sensors IV, (21 September 1994); doi: 10.1117/12.187391
Show Author Affiliations
Yuri N. Kulchin, Far Eastern State Technical Univ. (Russia)
Oleg B. Vitrik, Far Eastern State Technical Univ. (Russia)
Yuri S. Petrov, Far Eastern State Technical Univ. (Russia)
Oleg V. Kirichenko, Far Eastern State Technical Univ. (Russia)


Published in SPIE Proceedings Vol. 2294:
Distributed and Multiplexed Fiber Optic Sensors IV
Alan D. Kersey; John P. Dakin, Editor(s)

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