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Open AccessArticle

Self-Evaluation of PANDA-FBG Based Sensing System for Dynamic Distributed Strain and Temperature Measurement

1
Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
2
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
3
Japan Aerospace Exploration Agency, Mitaka, Tokyo 181-0015, Japan
*
Author to whom correspondence should be addressed.
Current address: 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan.
Sensors 2017, 17(10), 2319; https://doi.org/10.3390/s17102319
Received: 20 September 2017 / Revised: 4 October 2017 / Accepted: 6 October 2017 / Published: 12 October 2017
(This article belongs to the Special Issue Fiber Bragg Grating Based Sensors)
A novel method is introduced in this work for effectively evaluating the performance of the PANDA type polarization-maintaining fiber Bragg grating (PANDA-FBG) distributed dynamic strain and temperature sensing system. Conventionally, the errors during the measurement are unknown or evaluated by using other sensors such as strain gauge and thermocouples. This will make the sensing system complicated and decrease the efficiency since more than one kind of sensor is applied for the same measurand. In this study, we used the approximately constant ratio of primary errors in strain and temperature measurement and realized the self-evaluation of the sensing system, which can significantly enhance the applicability, as well as the reliability in strategy making. View Full-Text
Keywords: fiber optic sensor; fiber Bragg grating; distributed sensing; strain and temperature; dynamic sensing; evaluation fiber optic sensor; fiber Bragg grating; distributed sensing; strain and temperature; dynamic sensing; evaluation
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MDPI and ACS Style

Zhu, M.; Murayama, H.; Wada, D. Self-Evaluation of PANDA-FBG Based Sensing System for Dynamic Distributed Strain and Temperature Measurement. Sensors 2017, 17, 2319.

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