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自适应聚合物法布里-佩罗特温度计用于高灵敏度和宽线性范围传感
Yifan Cheng1, Maolin Yu1, Junjie Liu1
1School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, China.
Biosensors
|September 26, 2025
概括
一个新的聚合物法布里-佩罗干扰仪 (PFPI) 传感器提供了超灵敏的温度检测,比传统的纤维布拉格格改进了两个数量级. 这一进步使得高分辨率的热成像和精确的非侵入性生理监测成为可能.
科学领域:
- 光学和光子学 在光学和光子学.
- 传感器技术 传感器技术
- 生物医学工程 生物医学工程
背景情况:
- 光纤传感器越来越重要,因为它们的简单性,成本效益和高灵敏度.
- 现有的光纤温度传感器在灵敏度和范围方面面临限制,这阻碍了需要高分辨率或广泛热覆盖的应用.
研究的目的:
- 开发一种可自适应的聚合物法布里-佩罗干扰仪 (PFPI) 传感器,用于超敏感和宽线性范围的热传感.
- 为了提高温度传感能力,超越传统的纤维布拉格格.
- 为了实现高分辨率的热场成像和非侵入性生理监测.
主要方法:
- 制造一个自我适应的聚合物Fabry-Pérot干扰仪 (PFPI) 传感器.
- 温度灵敏度的表征,达到0.95 nm/°C.
- 实施局部交叉相关算法,用于准确的波长跟踪,以管理光谱变化.
- 超高分辨率热场成像 (0.025°C分辨率) 的演示.
- 在非侵入性人类生理监测 (体温和呼吸速率) 中的应用.
主要成果:
- 达到0.95nm/°C的温度灵敏度,比传统的纤维布拉格格高两倍.
- 通过交叉相关算法成功解决了超过自由光谱范围的光谱变化.
- 证明了超高分辨率 (0.025°C) 的扫描热场成像.
- 能够精确检测人体温度和呼吸速率,用于生理监测.
结论:
- 拟议的PFPI传感器在超敏感和宽线性范围热传感方面取得了重大进展.
- 开发的传感器能够进行微观热映射和非侵入性医疗保健应用.
- 这项技术有望改善诊断工具和热成像系统.
相关概念视频
01:13Equipments Used to Measure Body Temperature
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
01:14Temperature Measurement Sites
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...