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Title: Fiber optic extensometer for concrete deformation measurements
Authors: Yuan, L
Zhou, L 
Lau, KTA 
Jin, W 
Demokan, S
Keywords: Fibre optic sensors
Michelson interferometers
Spatial variables measurement
Issue Date: Jun-2002
Publisher: American Institute of Physics
Source: Review of scientific instruments, June 2002, v. 73, no. 6, p. 2469-2474 How to cite?
Journal: Review of scientific instruments 
Abstract: A fiber optic extensometer based on a scanning white light Michelson interferometer is presented. The instrument employs a light emitting diode as the light source and a single mode fiber with predetermined gauge length as the extensometer sensor head. Light to and from the sensor head is transmitted through a single mode lead (i.e., in/out) fiber. The sensor performance is insensitive to the in/out fiber extensions. The fiber optic extensometer was applied to measure the compression and tension of concrete specimens. The measurement results compare well with that from a conventional extensometer.
ISSN: 0034-6748
EISSN: 1089-7623
DOI: 10.1063/1.1445862
Rights: © 2002 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in L. Yuan et al., Review of scientific instruments 73, 2469 (2002) and may be found at
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