Mengdi Nie, Gang Zheng, Xiongxing Zhang, Qiming Sheng, Yuan Guo, Lang Bai, Yuan Han. Compensation for Temperature Drift in Frequency-Modulated Continuous-Wave Interference Fiber Optic Pressure Sensor[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0728002
- Laser & Optoelectronics Progress
- Vol. 59, Issue 7, 0728002 (2022)
Fig. 1. Structure of the pressure sensing probe
Fig. 2. Optical structure of the pressure sensor
Fig. 3. Optical structure of the temperature compensation
Fig. 4. Flow chart of the temperature compensation method
Fig. 5. Principle of the experimental scheme
Fig. 6. Pressure-cavity length variation curve of the pressure sensor during single measurement
Fig. 7. Pressure-cavity length variation curve of pressure sensor during repeated measurement
Fig. 8. Temperature-cavity length variation curve of the reference sensor
Fig. 9. Temperature-cavity length variation curve of the pressure sensor
Fig. 10. Measurement results before and after temperature compensation. (a) Cavity length variation in heating process; (b) temperature compensation accuracy in heating process; (c) cavity length variation in cooling process; (d) temperature compensation accuracy in cooling process
Fig. 11. Stability test of temperature compensation structure
|
Table 1. Measurement data and theoretical data during single measurement
| ||||||||||||||||||||||||||||||||
Table 2. Measurement data of pressure sensor during repeated measurement
|
Table 3. Temperature measurement data of reference sensor and pressure sensor
|
Table 4. Comparison of temperature compensation data in heating process
|
Table 5. Comparison of temperature compensation data in cooling process
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20