一种大量程光纤弯曲损耗型线性位移传感器研究 
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Research on an Optical Fiber Linear Displacement Sensor Based on Bending Loss for Use over Large Range
图 & 表
图 1. 光纤位移传感器示意图。(a) 传感器结构; (b) 齿轮结构
Fig. 1. Schematic of optical fiber displacement sensor. (a) Sensor structure; (b) gear structure
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图 2. αc与弯曲直径的关系
Fig. 2. Relationship between αc and bending diameter
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图 3. 传感器实物图及齿轮尺寸。(a) 封装的传感器实物; (b) 齿轮尺寸
Fig. 3. Physical drawing of sensor and dimension of gear. (a) Encapsulated sensor; (b) gear size
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图 4. 光损耗与位移的关系。(a) 测试1;(b) 测试2;(c) 测试3
Fig. 4. Relationships between displacements and optical losses of calibration experiments. (a) Test 1; (b) test 2; (3) test 3
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图 5. 传感器性能测试试验
Fig. 5. Performance test experiment of sensor
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表 1性能测试试验数据
Table1. Performance test data of sensor
| Displacement /mm | Condition | Macro-bending loss of optical fiber /dB | Standard deviation /dB |
|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|
| 25 | Elongation Shrinkage | 3.89 | 3.91 | 3.87 | 3.88 | 3.92 | 3.90 | 3.86 | 3.87 | 3.85 | 3.88 | 0.0210 | | 3.55 | 3.59 | 3.60 | 3.61 | 3.61 | 3.58 | 3.57 | 3.59 | 3.57 | 3.56 | 0.0195 | | 50 | Elongation Shrinkage | 8.17 | 8.19 | 8.20 | 8.18 | 8.19 | 8.21 | 8.16 | 8.17 | 8.22 | 8.19 | 0.0178 | | 8.01 | 8.03 | 8.01 | 7.98 | 8.00 | 7.99 | 8.04 | 8.06 | 8.02 | 8.06 | 0.0261 | | 75 | Elongation Shrinkage | 12.45 | 12.43 | 12.48 | 12.47 | 12.45 | 12.47 | 12.42 | 12.48 | 12.49 | 12.46 | 0.0214 | | 11.71 | 11.72 | 11.76 | 11.78 | 11.77 | 11.73 | 11.72 | 11.74 | 11.77 | 11.79 | 0.0270 | | 100 | Elongation Shrinkage | 16.64 | 16.66 | 16.68 | 16.65 | 16.69 | 16.62 | 16.63 | 16.67 | 16.62 | 16.63 | 0.0239 | | 16.14 | 16.17 | 16.18 | 16.16 | 16.14 | 16.13 | 16.19 | 16.18 | 16.12 | 16.15 | 0.0224 | | 125 | Elongation Shrinkage | 20.63 | 20.64 | 20.65 | 20.62 | 20.67 | 20.66 | 20.64 | 20.69 | 20.67 | 20.68 | 0.0216 | | 21.38 | 21.39 | 21.36 | 21.35 | 21.34 | 21.33 | 21.37 | 21.35 | 21.36 | 21.34 | 0.0179 | | 150 | Elongation Shrinkage | 24.89 | 24.92 | 24.91 | 24.90 | 24.93 | 24.91 | 24.88 | 24.87 | 24.94 | 24.91 | 0.0206 | | 24.53 | 24.56 | 24.59 | 24.51 | 24.52 | 24.56 | 24.58 | 24.51 | 24.53 | 24.55 | 0.0269 | | 175 | Elongation Shrinkage | 29.01 | 29.05 | 28.99 | 29.06 | 29.07 | 29.08 | 29.04 | 29.06 | 29.07 | 29.05 | 0.0268 | | 29.54 | 29.56 | 29.53 | 29.58 | 29.57 | 29.56 | 29.53 | 29.51 | 29.53 | 29.55 | 0.0206 | | 200 | Elongation Shrinkage | 33.28 | 33.24 | 33.26 | 33.27 | 33.21 | 33.25 | 33.28 | 33.24 | 33.28 | 33.23 | 0.0229 | | 33.13 | 33.17 | 33.18 | 33.20 | 33.21 | 33.19 | 33.22 | 33.20 | 33.22 | 33.21 | 0.0261 |
|
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郑勇, 肖旺, 朱正伟. 一种大量程光纤弯曲损耗型线性位移传感器研究[J]. 光学学报, 2020, 40(12): 1206002. Yong Zheng, Wang Xiao, Zhengwei Zhu. Research on an Optical Fiber Linear Displacement Sensor Based on Bending Loss for Use over Large Range[J]. Acta Optica Sinica, 2020, 40(12): 1206002.
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