Abstract
In consideration of bare optical fiber being fragility, the steel capillary encapsulating technique for FBG (fiber Bragg grating) sensor was developed. The temperature and strain sensing properties of the encapsulated FBG sensor were experimentally studied on material test system and under hot water respectively. The comparison of the experimental results between encapsulated fiber and bare fiber indicates that the strain sensing properties of the encapsulated FBG sensor are nearly the same as that of bare FBG, while, the temperature sensing ability of the encapsulated FBG sensor is improved and the temperature sensitivity coefficient is 2.5 times as much as that of the bare FBG.
| Original language | English |
|---|---|
| Pages (from-to) | 1089-1092 |
| Number of pages | 4 |
| Journal | Zhongguo Jiguang/Chinese Journal of Lasers |
| Volume | 29 |
| Issue number | 12 |
| State | Published - Dec 2002 |
| Externally published | Yes |
Keywords
- Encapsulating technique
- Fiber Bragg grating
- Strain sensing
- Temperature sensing
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