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Articles

New approach using a bare fiber optic cantilever beam as a low‐frequency acceleration measuring element

[+] Author Affiliations
Jose´ Miguel Lo´pez‐Higuera

Universidad de Cantabria E.T.S.I.I. y Telecomunicacio´n Grupo de Ingenieri´a Foto´nica Adva. Los Castros, s/n 39005 Santander, Spain

Manuel Lo´pez‐Amo

Universidad Polite´cnica de Madrid E.T.S.I. Telecomunicacio´n Departamento de Tecnologi´a Foto´nica Ciudad Universitaria 28040 Madrid, Spain

Opt. Eng. 35(6), 1700-1706 (Jun 01, 1996). doi:10.1117/1.600745
History: Received July 17, 1995; Accepted Oct. 30, 1995; Revised Oct. 30, 1995
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Abstract

A theoretical study is carried out in which a bare fiber optic cantilever beam, with no concentrated seismic mass, is proved to be suitable for measuring low‐frequency vibrations accurately. Its behavior was experimentally verified in the laboratory and can be approximated by a very simple transfer function that leads to straightforward signal processing. Some practical configurations, with accuracies as good as 0.5%, are given that depend on the operating frequency range. The simplicity of the architecture is highlighted. © 1996 Society of Photo−Optical Instrumentation Engineers.

Topics

Fiber optics

Citation

Miguel Morante ; Adolfo Cobo ; Jose´ Miguel Lo´pez‐Higuera and Manuel Lo´pez‐Amo
"New approach using a bare fiber optic cantilever beam as a low‐frequency acceleration measuring element", Opt. Eng. 35(6), 1700-1706 (Jun 01, 1996). ; http://dx.doi.org/10.1117/1.600745


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