Jingyi CAI, Jieya WU, Chunliu ZHAO, Juan KANG, Huaping GONG. In-situ Calibration Method of Fiber Grating Strain Sensor Based on Data Sequence Matching and Statistical Analysis[J]. Acta Photonica Sinica, 2022, 51(6): 0606004
- Acta Photonica Sinica
- Vol. 51, Issue 6, 0606004 (2022)
Fig. 1. Principle of RS sensor in-situ calibration model based on resistance strain gauge
Fig. 2. Principle of FBG sensing
Fig. 3. FBG strain sensor in situ calibration device
Fig. 4. FBG strain sensor in situ calibration system
Fig. 5. Amplitude comparison between resistance strain gauge and FBG strain sensor
Fig. 6. Skip point filtering out
Fig. 7. Matching results of 1529 nm wavelength FBG strain sensor and resistance strain gauge at the same sampling rate
Fig. 8. Waveforms of RS sensor and SBC sensor with wavelength of 1529 nm at the same sampling rate
Fig. 9. Static data fitting of FBG strain sensors with wavelength of 1 529 nm and 1 547 nm
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Table 1. Calibration coefficient of FBG strain sensor sensitivity at 1529 nm
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Table 2. Calibration coefficient of FBG strain sensor sensitivity at 1547 nm
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