Jian Chen, Yongxing Guo, Lipeng Zhang. A Glass-Fiber Packaged Fiber Bragg Grating Strain Sensor[J]. Laser & Optoelectronics Progress, 2020, 57(9): 090601
- Laser & Optoelectronics Progress
- Vol. 57, Issue 9, 090601 (2020)
Fig. 1. Package structure of the proposed FBG strain sensor
Fig. 2. Preparation process for the FBG strain sensor. (a) Compress jig and its photo; (b) package diagram for sensor components and its photo; (c) sensor in high-temperature thermostat; (d) photo of the FBG strain sensor
Fig. 3. Schematic of the testing device for the proposed FBG strain sensors
Fig. 4. Time-history curves in three loop tensile test for strain performance
Fig. 5. Experimental results. (a)-(c) Six differential outputs of the wavelength shifts; (d)-(f) linear fitting results of average of experimental data
Fig. 6. Test results of temperature compensating capacities for the three sensors
Fig. 7. Time-history curves of creep performance tests of the three sensors
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Table 1. Comparison of the strain measurement performance of the three sensors
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