Temperature sensor based on micro-nano optical fibers and end face reflection

• Main Authors: LING HUIYAN, CHEN WEICHENG, GUAN JIAJUN, XIAO ZHENGYI, NING QIUYI
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2020
• Subjects: MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The utility model discloses a temperature sensor based on micro-nano optical fibers and end face reflection. The device comprises a laser light source, an optical power meter, a coupler and a micro-nano optical fiber, the laser light source is connected with a first port of the coupler, a second port of the coupler is connected with the optical power meter, a third port of the coupler is connectedwith the micro-nano optical fiber, and the surface of the micro-nano optical fiber is coated with an epoxy resin coating. The micro-nano optical fiber thermometer is simple in structure and high in temperature detection accuracy of an environment to be detected, and compared with a traditional micro-nano optical fiber thermometer, the sensitivity of the micro-nano optical fiber thermometer to temperature change is improved by about 10%. 本实用新型公开了一种基于微纳光纤和端面反射的温度传感器，包括：激光光源、光功率计、耦合器和微纳光纤，所述激光光源与耦合器的第一端口连接，所述耦合器的第二端口与光功率计连接，所述耦合器的第三端口与微纳光纤连接，所述微纳光纤的表面涂覆有环氧树脂涂层。本实用新型结构简单，对待测环境的温度检测精确度高，对比传统的微纳光纤温度计，本实用新型对温度变化的灵敏度提高了约10％。