Temperature sensor based on micro-nano fiber and end-face reflection

• Main Authors: LING HUIYAN, CHEN WEICHENG, GUAN JIAJUN, XIAO ZHENGYI, NING QIUYI
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2019
• Subjects: MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention discloses a temperature sensor based on a micro-nano fiber and end-face reflection. The sensor comprises a laser light source, an optical power meter, a coupler and a micro-nano fiber. The laser light source is connected with a first port of the coupler; a second port of the coupler is connected to the optical power meter; and a third port of the coupler is connected to the micro-nano fiber. The surface of the micro-nano fiber is coated with an epoxy resin coating. The temperature sensor has a simple structure; and the temperature detection accuracy of the to-be-detected environment is high. Compared with the conventional micro-nano fiber temperature gauge, the disclosed temperature sensor has an advantage of improving the temperature change sensitivity by about 10%. 本发明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。本发明结构简单，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，本发明对温度变化的灵敏度提高了约10％。