F-P光纤应力传感器研制  

Research of F-P Optical Fiber Stress Sensor

作　　者：高晓丁[1] 高鹏[2] 王旭[1] 

机构地区：[1]西安工程大学机电学院,西安710048 [2]西安理工大学自动化与信息工程学院,西安710048

出　　处：《光电工程》2009年第3期88-92,共5页Opto-Electronic Engineering

基　　金：西安市科技局工业攻关项目(GG06026)

摘　　要：分析了F-P光纤应力传感器工作原理,提出了F-P光纤应力传感器的数学模型,设计了F-P光纤应力传感器弹性体结构、光电转换系统。F-P光纤应力传感器光源电路设计采用APC电路。APC电路由两个运算放大器和晶体管以及外围电路组成,采用背向光反馈自动偏置控制方式,即用半导体激光器组件中的PD光电二极管监测LD背向输出的光功率。对F-P光纤应力传感器进行了静态特性标定试验,试验结果表明,该传感器具有较高的测量精度,能够满足工程测量要求。The principle of F-P optical fiber stress sensor was analyzed, The Mathematical mold of F-P Optical fiber stress sensor was proposed. An elastic structure of F-P Optical fiber stress sensor and photoelectric conversion circuit was designed. APC circuit was used in the design of F-P Optical fiber stress sensor light source circuit. The APC circuit was made up of two operational amplifiers, transistor and periphery circuit, and adopted backward photorefractive feedback offset control, which used laser diode module of PD photodiode to watch the backward output optical power. A calibration test of static state characteristic for F-P Optical fiber stress sensor was made. The test indicates that the sensor has high measure precision, which can meet the requests of project measuring.

关 键 词：光纤 应力传感器 F-P光纤应变计 APC电路 静态特性 

分 类 号：TN253[电子电信—物理电子学]