中国物理B ›› 2021, Vol. 30 ›› Issue (10): 100701-100701.doi: 10.1088/1674-1056/ac0426
Yong Wei(魏勇), Lingling Li(李玲玲), Chunlan Liu(刘春兰)†, Jiangxi Hu(胡江西), Yudong Su(苏于东), Ping Wu(吴萍), and Xiaoling Zhao(赵晓玲)
Yong Wei(魏勇), Lingling Li(李玲玲), Chunlan Liu(刘春兰)†, Jiangxi Hu(胡江西), Yudong Su(苏于东), Ping Wu(吴萍), and Xiaoling Zhao(赵晓玲)
摘要: In order to control the working wavelength range of the fiber surface plasmon resonance (SPR) temperature sensor and realize the wavelength division multiplexing type multi-channel fiber SPR temperature sensor, by comprehensively investigating the influence of liquids with different thermal-optical coefficients and solid packaging materials on the performance of fiber SPR temperature sensor, a dual-channel fiber SPR temperature sensor based on liquid-solid cascade encapsulation was designed and fabricated. The liquid temperature sensing stage encapsulated in capillary worked in 616.03 nm-639.05 nm band, the solid sensing stage coated with pouring sealant worked in 719.37 nm-825.27 nm band, and the two stages were cascaded to form a fiber dual-channel temperature sensor. The testing results indicated that when the temperature range was 35 ℃-95 ℃, the sensitivity of two-stage temperature detection was -0.384 nm/℃ and -1.765 nm/℃ respectively. The proposed fiber sensor has simple fabrication and excellent performance which can be widely used in various fields of dual-channel temperature measurement and temperature compensation.
中图分类号: (Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)