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Proceedings Paper

Highly sensitive fiber optic sensor for dynamic pressure measurements
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Paper Abstract

A new type of fiber-optic pressure sensor based on highly birefringent fibers is presented. To assure temperature desensitization, the sensing part of the device is composed of specially developed side-hole fiber and elliptical core fiber, which are spliced to each other with polarization axes rotated by 90 degree(s). Such sensor construction assures high sensitivity to pressure and compensation of temperature effects associated with rapid pressure changes. The sensor allows for unambiguous and fast phase-shift measurements in the range from -(pi) /2 to +(pi) /2 with a sampling rate of 5 kHz and resolution of about 0.5% of full scale (2 (DOT) 10-3 atm). The sensor calibration procedure, responses to fast pressure change, and preliminary applications are demonstrated.

Paper Details

Date Published: 17 August 1999
PDF: 5 pages
Proc. SPIE 3745, Interferometry '99: Applications, (17 August 1999); doi: 10.1117/12.357790
Show Author Affiliations
Magdalena S. Nawrocka, Wroclaw Univ. of Technology (Poland)
Wojtek J. Bock, Univ. du Quebec a Hull (Canada)
Waclaw Urbanczyk, Wroclaw Univ. of Technology (Poland)
Jan Wojcik, Maria Curie-Sklodowska Univ. (Poland)


Published in SPIE Proceedings Vol. 3745:
Interferometry '99: Applications

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