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Proceedings Paper

A novel optical accelerometer with wide operation range
Author(s): F. Rudge Barbosa; F. Borin; Alexander Arakaki; João G. D. Aguiar; Claudionor Chaves
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Paper Abstract

Frequently, assessment and monitoring of mechanical (acoustic) vibrations is necessary in large structures. Cost and reliability are major issues for field-deployment. We present a simple, compact and reliable optical accelerometer designed and constructed in our labs, capable of consistent measurement of vibrations in low and intermediate acoustic ranges (few Hz to few kHz). The principle of operation is based on the variation of the optical signal power coupled between singlemode fibers fixed in the optical sensor head. The device sensitivity has a lower limit to accelerations below 1g, and surprising upper value above 180 m/s2 (18g).

Paper Details

Date Published: 5 November 2005
PDF: 8 pages
Proc. SPIE 5998, Sensors for Harsh Environments II, 599806 (5 November 2005); doi: 10.1117/12.630862
Show Author Affiliations
F. Rudge Barbosa, Fundação CpqD (Brazil)
F. Borin, Fundação CpqD (Brazil)
Alexander Arakaki, Fundação CpqD (Brazil)
João G. D. Aguiar, Fundação CpqD (Brazil)
Claudionor Chaves, Light S.A. (Brazil)


Published in SPIE Proceedings Vol. 5998:
Sensors for Harsh Environments II
Anbo Wang, Editor(s)

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