An FBG sensor for strain and temperature discrimination at cryogenic regime

D. Sengupta; M. Sai Shankar; P. Kishore; P. Saidi Reddy; R. L. N. Sai Prasad; P. Vengal Rao; K. Srimannarayana

doi:10.1117/12.905689

29 November 2011 An FBG sensor for strain and temperature discrimination at cryogenic regime

D. Sengupta, M. Sai Shankar, P. Kishore, P. Saidi Reddy, R. L. N. Sai Prasad, P. Vengal Rao, K. Srimannarayana

Proceedings Volume 8311, Optical Sensors and Biophotonics III; 831106 (2011) https://doi.org/10.1117/12.905689
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

A simple technique to discriminate the Strain and Temperature with a single Fiber Bragg Grating (FBG) at cryogenic regime is presented in this paper. An uniform FBG is divided into two parts, one half is without coating (FBG1) and other half is coated with Cyno-Acrylic Adhesive (FBG2). The measured temperature and strain sensitivities of the FBG1 are 4.05x10-6/K and 2.13x10-6/με and FBG2 are 1.39x10-5/K and 1.72x10-6/με respectively.

Citation Download Citation

D. Sengupta, M. Sai Shankar, P. Kishore, P. Saidi Reddy, R. L. N. Sai Prasad, P. Vengal Rao, and K. Srimannarayana "An FBG sensor for strain and temperature discrimination at cryogenic regime", Proc. SPIE 8311, Optical Sensors and Biophotonics III, 831106 (29 November 2011); https://doi.org/10.1117/12.905689

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