Bitao Wu, Zefang Lin, Yuanlai Zeng, Zucai Lin, Huaxi Lu. Experimental Study on Temperature Sensitivity Coefficient of Long-Gauge Strain Sensor Encapsulated with Fiber[J]. Laser & Optoelectronics Progress, 2022, 59(1): 0106005
- Laser & Optoelectronics Progress
- Vol. 59, Issue 1, 0106005 (2022)
Fig. 1. Schematic of fiber grating structure and sensing
Fig. 2. Structure and physical image of long-gauge distance FBG sensor based on BFRP material packaging and sensitivity enhancement. (a) Structure drawing; (b) physical drawing
Fig. 3. Long-gauge length FBG sensor temperature test photos. (a) Outdoor temperature test; (b) indoor temperature test
Fig. 4. Linear fitting of temperature difference of long-gauge FBG sensor at different wavelengths. (a) 1520 nm; (b) 1524 nm; (c) 1532 nm; (d) 1536 nm; (e) 1544 nm; (f) 1552 nm
Fig. 5. Comparison of long-gauge FBG sensor and ordinary FBG sensor. (a) Temperature influence value; (b) difference comparison
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