基于乙醇涂层的高灵敏气球状纤维干扰仪用于温度测量
Xin Ding1,2, Qiao Lin1, Shen Liu1
1Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
一种新的气球状纤维干扰仪涂有乙醇,为温度检测提供高灵敏度. 这种具有成本效益的传感器,具有优化的20毫米灵敏长度,显示温度灵敏度提高了10.3倍.
科学领域:
- 光纤光学是指光纤的使用.
- 干涉测量是干涉测量的方法.
- 传感器技术 传感器技术
背景情况:
- 马赫-泽恩德干扰仪对光路长度的变化敏感.
- 乙醇的折射率对温度变化非常敏感.
- 开发精确且具有成本效益的温度传感器对于各种应用至关重要.
研究的目的:
- 开发一种高灵敏,低成本的气球状纤维干扰仪,用于温度监测.
- 为了研究灵敏长度对折射率 (RI) 检测性能的影响.
- 为了评估充满乙醇的干扰仪的温度灵敏度.
主要方法:
- 制造一个类似气球的结构,使用单模纤维在特龙管内.
- 通过毛细血管作用将乙醇溶液填充结构.
- 用不同的NaCl度和敏感长度 (10,15,20毫米) 实验研究RI检测性能.
- 在28.1°C至35°C范围内测量温度灵敏度.
主要成果:
- 最高的RI灵敏度为212.88nm/RIU,使用20毫米的灵敏长度实现.
- 用乙醇填充的干扰仪显示温度灵敏度为1.145nm/°C.
- 这种灵敏度是未填充结构 (0.111 nm/°C) 的10.3倍.
结论:
- 优化的20毫米乙醇填充气球状纤维干扰仪具有高灵敏度,并具有精确温度监测的潜力.
- 传感器的设计提供了低成本和易于制造的优势.
- 这项技术可以应用于需要高精度温度测量的应用.
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