A fiber-optic hydrostatic pressure sensor initially temperature compensated by optical means is further desensitized below the limits associated with second-order effects by the method proposed in this paper. We achieved this goal by using an integrated system of two coherence-multiplexed separate sensor components for simultaneous measurement of hydrostatic pressure and temperature and by on-line numerical processing of measurement data delivered simultaneously from both sensor parts. The system is based on highly birefringent fibers, employs electronic scanning, and can be used for quasi-static measurements.
© 1998 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4230) Fiber optics and optical communications : Multiplexing
(120.3180) Instrumentation, measurement, and metrology : Interferometry
Wojtek J. Bock and Wacław Urbańczyk, "Temperature Desensitization of a Fiber-Optic Pressure Sensor by Simultaneous Measurement of Pressure and Temperature," Appl. Opt. 37, 3897-3901 (1998)