| 李立彤,张东生,文晓艳,熊丽.微型光纤F-P传感器用于材料热膨胀系数的测量[J].光电子激光,2014,(11):2130~2135 |
| 微型光纤F-P传感器用于材料热膨胀系数的测量 |
| Micro fiber F-P sensor used in the measurement of thermal expansion coefficient |
| 投稿时间：2014-07-25 |
| DOI： |
| 中文关键词: 光纤F-P腔 HF腐蚀 光纤传感 热膨胀系数测量 |
| 英文关键词:fiber F-P cavity HF acid optical fiber sensing thermal expansion coefficient measurement |
| 基金项目:国家高技术研究发展计划“863”计划(2012AA041203)资助项目 (1.武汉理工大学 光纤传感与信号处理教育部重点实验室,湖北 武汉 430070; 2.武汉理工大学 光纤传感技术国家工程实验室,湖北 武汉 430070) |
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| 中文摘要: |
| 针对传统方法测量材料热膨胀系数受外界环境因素 影响较大和测试方法较为复杂,提出了 一种采用微型光纤法布里-珀罗(F-P)传感器测定光纤自身以及金属Al件热膨胀系数的 新方法。 采用HF腐蚀光纤的方式制作F-P传感器的工艺,在30～120℃的温度 范围内测得裸光纤的热膨胀系数为 5.2E-8K-1,同时将F-P传感器粘贴在金属Al件上,测得金属Al的热膨胀系数为23.25 E-8K-1。实验结果对比材 料自身在常温下的理论值具备很高的一致性,分析了误差产生的原因。实验结果表明,微型 光纤F-P传感器的制作工艺简单,测试方法稳定可靠,同时可以推广至高低温等恶劣环境下 的应用。 |
| 英文摘要: |
| Traditional methods to measure the the rmal expansion coefficient of materials are greatly influenced by the external environment factors and the test methods and instruments are also complex.This paper proposes a new method that uses a micro fiber Fabry-Perot (F-P) sensor to measure the expansion coefficients of the optical fiber itself and aluminum at room temperatur e.This paper describes the technology in detail where the FP sensor is produced by using hydrofluoric to ac id th e optical fiber.In a temperature range of 30℃ to 120℃,the thermal expansion coefficient of the fiber is meas ure d to be 5.2E-8K-1.At the same time we paste the FP sensors on a metal aluminum,and measure the thermal expansion c oe fficient of the metal aluminum to be 23.25E-8K-1.Experimental results fit well with the theoretical values .Also the causes of error were analyzed.Experimental result shows that this testing method by using the micro fiber FP sensors is stable and reliable,also the production process is easy.The fiber-optic F-P sensor developed in this work is easy to fabricate and has a b road sensing application field. |
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