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Published on: March 8, 2020
Self-Evaluation of PANDA-FBG Based Sensing System for Dynamic Distributed Strain and Temperature Measurement
Mengshi Zhu1, Hideaki Murayama2, Daichi Wada3
1Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan. zhmsh@giso.t.u-tokyo.ac.jp.
Abstract:
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.
Related Concept Videos
Measurements of Strain
Temperature Dependent Deformation
Design Example: Strain Gauge Bridge or Wheatstone Bridge

