基于滤波器边缘解调技术的光纤光栅压力测试系统  

Optical Fiber Grating Pressure Test System Based on Filter Brim Demodulation Technology

作　　者：杨洋[1] 王宗和[1] 赵志骏[1] 

机构地区：[1]承德石油高等专科学校

出　　处：《仪表技术与传感器》2008年第6期82-84,共3页Instrument Technique and Sensor

基　　金：河北省自然科学基金资助计划项目(D2006000659)

摘　　要：利用光通讯技术中被广泛应用的中心波长为1550nm，波形为等腰梯形的光纤带通滤波器的边缘效应进行解调，对所定义的波长调制函数和滤波器边缘特性进行了分析，搭建了光纤光栅压力测试系统，并进行了实验测试。借助压力测试台对所研制的光纤光栅压力测试系统进行了标定，并将测试结果与标准值进行了比较，在0—6MPa的范围内该测试系统的引用误差为1％．This system uses 1550 nm centre wavelength which is abroad used in fiber communication technology and isosceles trapezoid wave optical fiber band-pass filter＇s brim effect to demodulate. Based on the way above, this paper made an optical fiber grating pressure test system which was used to analyze some wave modulation function and filter＇s brim characteristic. Using the pressure test platform, the system was demarcated, and the results were compared with the standard. After demarcating the pressure test system, the paper draws the following conclusion, in the range of 0 -6 MPa, the system＇s citing error is less than 1%.

关 键 词：带通滤波器 边缘解调 光纤光栅 波长调制函数 压力传感器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]