Investigation of fiber optic angular and linear displacement sensors and the latter as a refractometer

Jonas Verkelis; R. Jankevicius; R. Sarmaitis; V. Rezaite

doi:10.1117/12.417578

8 March 2001 Investigation of fiber optic angular and linear displacement sensors and the latter as a refractometer

Jonas Verkelis, R. Jankevicius, R. Sarmaitis, V. Rezaite

Proceedings Volume 4318, Smart Optical Inorganic Structures and Devices; (2001) https://doi.org/10.1117/12.417578
Event: Advanced Optical Materials and Devices, 2000, Vilnius, United States

Abstract

Advanced fiber-optical displacement sensors are being developed. We propose to use a reflection fiber-optical sensor of new configuration- two pairs of fibers creating the defined angle between the tips of fibers to indicate and measure angular and linear displacement. The latter can e also used as refractometer to provide drastic improvement of measurement sensitivity in comparison with the recently developed three-fiber measurement method. We describe the design of the measurement set-up and signal processing electronics. Results of computer simulation and experimental investigation are presented. Attained sensitivity of the displacement sensor 1702 mV/micrometers . Obtained refractometer sensitivity 2(DOT)10^-6RIU.

Citation Download Citation

Jonas Verkelis, R. Jankevicius, R. Sarmaitis, and V. Rezaite "Investigation of fiber optic angular and linear displacement sensors and the latter as a refractometer", Proc. SPIE 4318, Smart Optical Inorganic Structures and Devices, (8 March 2001); https://doi.org/10.1117/12.417578

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