Minghao Li, Lin Cheng, Yaming Li, Yuming Ma, Jie Yang. Design of Displacement Sensor Based on the Bending Loss of U-Type Wingding Fiber[J]. Acta Optica Sinica, 2018, 38(6): 0606007
- Acta Optica Sinica
- Vol. 38, Issue 6, 0606007 (2018)
Fig. 1. Schematic diagram of displacement sensor structure of fiber bending loss
Fig. 2. Displacement transfer principle of the main rack for displacement sensor of fiber bending loss
Fig. 3. Waveguide radiation of the bending optical fiber
Fig. 4. Relationship between macro-bending loss per unit length and bending diameter
Fig. 5. Fiber details in sensor
Fig. 6. Calibration experiment device of displacement sensor structure of fiber bending loss
Fig. 7. Optical loss and displacement test data. (a)Test 1; (b) test 2; (c) test 3; (d) test 4
Fig. 8. Performance testing of displacement sensor structure of fiber bending loss
Fig. 9. Influence of radius of curvature of U-type turning radius on the measurement precision of sensor
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Table 1. Fiber bending loss in displacement sensor
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