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Proceedings Paper

Optical fiber sensor for simultaneous measurement of strain and temperature
Author(s): Xiaodan Jin; James S. Sirkis; Jae-Kang Chung
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Paper Abstract

An optical fiber sensor for simultaneous measurement of axial strain and temperature is reported. This sensor configuration consists of an in-line fiber etalon cascaded with a in-fiber Bragg grating and demultiplexed using a variation of coherence division multiplexing. The strain/temperature sensor is demonstrated by bonding it to the surface of an aluminum cantilever beam and embedding it into a graphite/epoxy composite cantilever beams. They are found to agree with traditional strain and temperature sensors to within 5 (mu) (epsilon) and 0.5 degree(s)C, respectively for a sensor gage length of approximately 1.0 cm.

Paper Details

Date Published: 6 June 1997
PDF: 8 pages
Proc. SPIE 3042, Smart Structures and Materials 1997: Smart Sensing, Processing, and Instrumentation, (6 June 1997); doi: 10.1117/12.275764
Show Author Affiliations
Xiaodan Jin, Univ. of Maryland/College Park (United States)
James S. Sirkis, Univ. of Maryland/College Park (United States)
Jae-Kang Chung, Chosun Univ. (South Korea)


Published in SPIE Proceedings Vol. 3042:
Smart Structures and Materials 1997: Smart Sensing, Processing, and Instrumentation
Richard O. Claus, Editor(s)

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