• Login
  • Register
  • Search

Experimental Study on Simultaneous Measurement of Single Point Temperature and Regional Temperature Based on Fiber White-light Interferometry

Gen Li, Haiwei Fu, Miao Chen, Jiayue Xiao, Jiahui Cheng

Abstract


Traditional fi ber-optic white-light interferometry sensing technology typically only enables single-point or regional temperature measurements, making it challenging to simultaneously measure temperature changes at single points and in regional areas.To address this issue, this paper proposes a novel white-light interferometry sensing array capable of simultaneously measuring temperature in both point and regional areas.A demodulation system based on Michelson interferometer for the sensing array is designed.A microcontroller is utilized to control a stepper motor and a sawtooth wave voltage to adjust the displacement of the piezoelectric ceramic piece, thereby adjusting the matched optical path length to achieve the measurement of the optical path length of the reference arm reflection surface. This allows for temperature sensing measurement based on the relationship between optical path length and temperature, enabling multi-point, multi-regional temperature sensing measurement for the sensing array. An experimental system is constructed, and experimental studies are conducted.Within the range of 40℃ to 100℃, temperature sensing measurements for three points and the average temperature sensing measurement for the region of 95cm to 100cm are achieved, with temperature resolutions of 1.853m/℃ and 1.588m/℃, respectively.This research provides new ideas and methods for further development of fi ber-optic white-light interferometry sensing technology in engineering applications.

Keywords


Fiber sensing; White-light interferometry; Temperature; Integrated design; STM32

Full Text:

PDF

Included Database


References


[1] Wang, N. Research on Fiber F-P Sensor Technology Based on White Light Interference[J]. Journal of Chongqing University,2018,41(8), 123-130.

[2] Yang, H. Research Status of High Temperature Strain Sensor Based on Fiber Bragg Grating and Fiber Interference[J]. Journal of Northwest University,2019,49(6), 879-885.

[3] Smith, J. et al. Application of white light interferometry in temperature and strain measurement[J]. Journal of Optical Engineering,2020, 59(5), 051402.

[4] Li, X. Challenges and solutions of fiber optic sensing in complex environments[J]. Sensors,2019,19(14), 3167.

[5] Zhao, N., Jia, B. Simultaneous measurement of temperature and strain based on a chirped fiber Bragg grating and white-light interferometry[J]. Applied Optics,2017,56(28), 7916-7920.

[6] Zhang, L., Wang, A., Wang, Y. Fiber optic sensor for simultaneous measurement of temperature and strain based on white-light interferometry[J]. Optik,2016,127(21), 10173-10177.

[7] Huang, J., Huang, Y., Shao, Y. Simultaneous measurement of temperature and strain using a Sagnac loop interferometer and a fiber Bragg grating[J]. Sensors and Actuators A: Physical,2015,231, 51-57.

[8] Wu, D., Huang, Y., Liao, C. R. Simultaneous measurement of temperature and strain using a fiber Bragg grating and multimode fiber coupler[J]. Optics Communications,2014,316, 63-67.

[9] Zhang, J., Yu, X., Lu, P. Simultaneous measurement of temperature and strain using a novel hybrid interferometer based on a polarization-maintaining fiber Bragg grating and a fiber Fabry–Perot cavity[J]. Optics Express,2018,26(24), 32185-32195.

[10] Yang, S., Liu, S Simultaneous measurement of temperature and strain using a Fabry–Perot interferometer based on a side-hole fiber filled with nanoparticle-doped liquid[J]. Optics Letters,2013,38(6), 983-985.

[11] Zhang, M., Li, L., Jin, L. Simultaneous measurement of temperature and strain with high sensitivity and resolution using fiber Bragg grating Fabry–Perot sensor[J]. Optics Communications,2012,285(4), 916-919.

[12] Chai J, Du W, Yuan Q, et al. Analysis of test method for physical model test of mining based on optical fiber sensing technology detection[J]. Optical Fiber Technology, 2019, 48: 84-94.

[13] Lee S Y, Le H V, Kim D J. Self-stress sensing smart concrete containing fine steel slag aggregates and steel fibers under high compressive stress[J]. Construction and Building Materials, 2019, 220: 149-160.

[14] Tan X, Bao Y, Zhang Q, et al. Strain transfer effect in distributed fiber optic sensors under an arbitrary field[J]. Automation in Construction, 2021, 124: 103597.

[15] Chen K, Yu Z, Yu Q, et al. Fast demodulated white-light interferometry-based fiber-optic Fabry–Perot cantilever microphone[J]. Optics Letters, 2018, 43(14): 3417.

[16] Li, Y., Wei, Y., Yin, S. Fiber-optic white-light interferometric sensor for temperature and strain measurements[J]. Optical Fiber Technology,2019, 50, 1-6.




DOI: http://dx.doi.org/10.18686/ahe.v8i1.12790

Refbacks
Copyright © 2020 Universe Scientific Publishing. All rights reserved.