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| 光纤布拉格光栅二阶灵敏度的研究 | |
| 引用本文： | 张桂花,柴敬,马宪民.光纤布拉格光栅二阶灵敏度的研究[J].天津工业大学学报,2011,30(3):61-64. |
| 作者姓名： | 张桂花 柴敬 马宪民 |
| 作者单位： | 1. 西安科技大学理学院,西安,710054 2. 西安科技大学能源学院,西安,710054 3. 西安科技大学电气与控制工程学院,西安,710054 |
| 基金项目： | 国家自然科学基金资助项目 |
| 摘 要： | 从布拉格光栅方程出发,理论上分析了在温度、应变双参量同时测量时,考虑温度-应变交叉灵敏度、二阶应变灵敏度和二阶温度灵敏度情况下,温度和应变测量的误差的一般数学公式.结合实验数据进行了温度和应变的误差计算,得出3个二阶灵敏度在不同的温度变化、应变范围内对测量误差的贡献不同.同时给出了波长的漂移量与温度、应变呈线性关系时,温度变化和应变的范围. |
| 关 键 词： | 光纤光栅 误差分析 二阶灵敏度 |
Study on the second-order sensitivity of FBG |
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| ZHANG Gui-hua,CHAI Jing,MA Xian-min.Study on the second-order sensitivity of FBG[J].Journal of Tianjin Polytechnic University,2011,30(3):61-64. | |
| Authors: | ZHANG Gui-hua CHAI Jing MA Xian-min |
| Affiliation: | 1.School of Science,Xi′an University of Science and Technology,Xi′an 710054,China;2.School of Energy Engineering,Xi′an University of Science and Technology,Xi′an 710054,China;3.School of Electrical and Control Engineering,Xi’an University of Science and Technology,Xi′an 710054,China) |
| Abstract: | Based on the Bragging equation,the general mathematical formulas of the temperature change error and the strain error are got under the consideration of the second-order temperature sensitivity,the second-order strain sensitivity and the cross-sensitivity of temperature and strain,when the temperature and the strain are measured simultaneously.With the experimental dates the errors of the strain and the temperature change are calculated.The conclusion is drawn that the three second-order sensitivities differently contribute to the errors in the different range of the strain and temperature change.The ranges of the temperature change and the strain are given when the wavelength drift is linear with the strain and the temperature change. |
| Keywords: | fiber Bragg grating error analysis the second-order sensitivity |
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