| 光纤光栅温度传感的非线性现象 |
| |
| 引用本文： | 贾振安,乔学光,李明,傅海威,刘颖刚.光纤光栅温度传感的非线性现象[J].光子学报,2003,32(7):844-847. |
| |
| 作者姓名： | 贾振安 乔学光 李明 傅海威 刘颖刚 |
| |
| 作者单位： | 西安石油学院信息科学系,西安,710065 |
| |
| 基金项目： | 国家自然科学基金 (批准号 :6 98770 2 5 )，国家高技术研究发展计划“86 3”计划 (批准号 :2 0 0 2AA31315 0 )，国家教育部科学技术重点项目 (批准号 :0 2 190 )，陕西省自然科学基金(批准号 :2 0 0 0C34)，陕西省教育厅科学技术项目 (批准号 :0 2JK15 8)，西 |
| |
| 摘 要： | 对光纤光栅温度传感反射波长相对漂移量与温度改变量的非线性问题进行了详细研究.通过对实验曲线的多项式拟合,求出了光纤光栅反射中心波长相对漂移量ΔλC/λC与温度改变量ΔT的解析式,用对比法得到了温度灵敏度系数η表达式.取样计算表明:多项式能更好地反映ΔλC/λC与ΔT的关系,证明了温度灵敏度系数η不是常量,而是随温度增加缓慢增大.
|
| 关 键 词： | 光纤光栅 温度传感 光纤传感器 非线性现象 |
| 收稿时间： | 2002/9/24 |
| 修稿时间： | 2002年9月24日 |
Nonlinear Phenomena of Fiber Bragg Grating Temperature Sensing |
| |
| Jia Zhen′an,Qiao Xueguang,Li Ming,Fu Haiwei,Liu Yinggang.Nonlinear Phenomena of Fiber Bragg Grating Temperature Sensing[J].Acta Photonica Sinica,2003,32(7):844-847. |
| |
| Authors: | Jia Zhen′an Qiao Xueguang Li Ming Fu Haiwei Liu Yinggang |
| |
| Institution: | Information Science Department, Xi′an Petroleum Institute, Xi′an 710065, China |
| |
| Abstract: | The nonlinear phenomena of fiber Bragg gratings temperature sensing was discussed in detail. With polynomial fit method, the experimental relationships between temperature ΔT and relative shift of reflected center wavelength ΔλC/λC of in-fiber Bragg gratings were abtained. The temperature sensitivity coefficients η were also abtained by comparing the experiment results with theoretical results. The sampling calculation indicates that polynomial can better express the relation between ΔλC/λC and ΔT than linear relation formula. It has been proved that the temperature sensitivity coefficient η increases slowly with the temperature increment increase, but not a constant. |
| |
| Keywords: | Fiber Bragg gratings(FBG) Temperature sensing Optical fiber sensors Nonlinear phenomena |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《光子学报》浏览原始摘要信息 |
| 点击此处可从《光子学报》下载免费的PDF全文 |
|
