|
| 基于FBG集成F-P干涉的温度–应变传感器研究 |
| Research on temperature-strain sensor based on FBG integrated F-P cavity |
| 投稿时间：2023-06-21 |
| DOI：10.3969/j.issn.1005-5630.202306210099 |
| 中文关键词: 光纤传感器 光纤布拉格光栅 F-P干涉 温度 应变 |
| 英文关键词:fiber sensor fiber Bragg grating F-P interference temperature strain |
| 基金项目: |
|
| 摘要点击次数: 2116 |
| 全文下载次数: 803 |
| 中文摘要: |
| 光纤温度–应变传感器因其突出性能已广泛应用于电力、建筑等领域的健康检测。提出了一种光纤布拉格光栅(fiber Bragg grating, FBG)结合法布里–珀罗(Fabry-Perot, F-P)结构的温度–应变集成传感器。F-P传感器通过熔融石英光纤制作而成。FBG可以测量温度和应变，而光纤F-P传感器只对应变敏感，通过解调2个传感器的波长，结合传输矩阵可以实现温度和应变的同时测量。实验结果表明，FBG的温度和应变灵敏度分别为8.4 pm/ ℃和0.62 μm/ε，F-P传感器的应变灵敏度为1.9 μm/ε，线性度优于99%。该传感器具有结构简单，成本低，制作简便等特点，具有广阔的应用前景。 |
| 英文摘要: |
| Optical fiber temperature-strain sensors have been widely used in health detection in the fields such as electric power and buildings because of their outstanding performance. This paper proposes a temperature-strain integrated sensor with fiber Bragg grating (FBG) combined with Fabry-Perot (F-P) structure. The F-P sensor is made of fused silica optical fiber. FBG can measure temperature and strain, while the fiber optic FP sensor is only sensitive to strain. By demodulating the two sensor wavelengths, the simultaneous measurement of temperature and strain can be realized by using the transfer matrix. The experimental results showed that the temperature and strain sensitivities of the FBG were 8.4 pm/℃ and 0.62 pm/με, respectively, and the strain sensitivity of the F-P sensor was 1.9 μm/ε, with linearity better than 99%. The sensor has the characteristics of simple structure, low cost, easy fabrication, etc., and has broad application prospects. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
