Open AccessDevelopment of Optical Fiber Strain Calibration Device
Author(s) -
Bo Tao,
Jiajia Hu,
Minghao Zhu,
Cao Pengfei,
Jianguo Lin,
Shen Xiao-Yan
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1654/1/012097
Subject(s) - calibration , materials science , optical fiber , fiber bragg grating , optics , decoupling (probability) , strain (injury) , fiber optic sensor , physics , engineering , medicine , quantum mechanics , control engineering
The Brillouin distributed sensing system is sensitive to the crossover between strain and temperature. The temperature and strain can be measured simultaneously through decoupling. However, there is no suitable method to calibrate and trace the strain measurement. Therefore, a method of calibrating fiber strain by grating ruler is proposed, the decoding circuit of grating ruler is designed, and the calibration device of optical fiber strain is built. The experimental results show that the uncertainty reaches 5.90 μm (k = 2) in the range of 0 ∼ 1000 μm, and the measurement of optical fiber strain can be traced back to the national length standard.