F_P光纤压力传感器的温度特性研究_郭振武.pdfVIP

SEMICONDUCTOR OPTOELECTRONICS Vol. 29 No.3 June 2008 F-P 郭振武, 孙桂玲, 李维祥 ( , 300071) : 设计并制作了Fabry-Perot( F-P) 干涉型光纤传感器根据传感器的制作工艺和原 理, 分析了减小温度系数的方 : 设计适当的初始腔长采用开放腔以及控制光纤与石英套管的粘 接方式, 都可以有效地控制温度对传感器的影响, 以适应传感器在不同场合的应用对所述方 进 行了相应的实验验证, 结果表明实验数据与理论分析一致 : ; Fabry-Perot ; ; ; : O43 : A : 1001- 5868( 2008) 03- 0418- 04 Temperature Characteristics of Optical Fiber Pressure Sensor Base on F-P Interferometry GU O Z en-w u, SUN Gu-i ling, LI We-i xiang ( College of Information Technical Science, Nankai University, Tianjin 300071, CHN) Abstract: T e structure of t e sensor based on an optical fiber extrinsic Fabry- Perot interferometer w ic is composed of silica tube and optical fibers is presented. According to fabrication process and operation principle of t e sensor, t ree met ods to reduce t e temperature coefficient of t e sensor are put forw ard. To design t e proper initial cavity lengt , to old t e cavity opening and to properly glue t e fibers and t e silica tube are all effective met ods. T e results s ow t at t e experimental data are consistent w it t eoretical analysis. Key wor s: optical fiber sensor; Fabry-Perot interferometer; cavity lengt ; temperature c aracteristic; open cavity 1 , , Fabry-Perot( F-P) , 2 [ 1] [ 2, 3] [ 4] [ 5] [ 6] F-P 1 F-P 125Lm, 126Lm ( ) , ( SM F1 SM F2) , ; ,