Title :
Coherence-multiplexed fiber-optic sensor systems for measurements of dynamic pressure and temperature changes
Author :
Bock, W.J. ; Nawrocka, M.S. ; Urbanczyk, W.
Author_Institution :
Lab. d´´Optoelectron., Quebec Univ., Hull, Que., Canada
Abstract :
Two systems of multiplexed interferometric sensors based on highly birefringent fibers for simultaneous measurements of pressure and temperature changes are presented. The phase shifts induced in the sensing elements are registered in a four-channel detection unit with a resolution of ¼ interference fringe. The performance of two systems, one composed of two serially multiplexed sensors for measurements of pressure and temperature changes and the other composed of two parallel multiplexed sensors for pressure measurements is demonstrated
Keywords :
compensation; fibre optic sensors; light interferometers; light interferometry; multiplexing; pressure measurement; pressure sensors; temperature measurement; temperature sensors; coherence-multiplexed sensors; dynamic pressure change measurement; dynamic temperature change measurement; fiber-optic sensor systems; four-channel detection unit; highly birefringent fibers; matched optical path delay; multiplexed interferometric sensors; parallel multiplexed sensors; phase shifts; serially multiplexed sensors; simultaneous measurements; temperature stability; Interference; Interferometers; Optical fiber communication; Optical fiber polarization; Optical fiber sensors; Pressure measurement; Sensor systems; Superluminescent diodes; Temperature measurement; Temperature sensors;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928825
