High Sensitivity FBG Pressure Sensor Based on Mechanical Amplifier and Interrogation Using Tunable FBG Filter  

作　　者：LIUYun－qi LIUZhi－guo 等 

机构地区：[1]InstituteofModernOptics,NankaiUniversity,Tianjin300071,CHN [2]InstituteofModernOptics,NankaiUniversity,T

出　　处：《Semiconductor Photonics and Technology》1999年第3期171-174,178,共5页半导体光子学与技术（英文版）

基　　金：The National Natural Science Foundation of China

摘　　要：A high sensitivity fiber Bragg grating pressure sensor by using mechanical amplifier is demonstrated. The measured pressure sensitivity is -1.80×10 -4 /MPa, which is about two orders of magnitude better than a simple monomode fiber with an in-fiber grating. The resolution of pressure measurement is 0.015 MPa based on interrogation using tunable fiber grating filter.A high sensitivity fiber Bragg grating pressure sensor by using mechanical amplifier is demonstrated. The measured pressure sensitivity is -1.80×10 -4 /MPa, which is about two orders of magnitude better than a simple monomode fiber with an in-fiber grating. The resolution of pressure measurement is 0.015 MPa based on interrogation using tunable fiber grating filter.

关 键 词：Fiber Bragg Grating Mechanical Amplifier Pressure Sensor Tunable Filter    CLC number:TN253 TP212  Document code:A 

分 类 号：TN253[电子电信—物理电子学] TP212.1[自动化与计算机技术—检测技术与自动化装置]