全光纤钢制悬臂梁结构传感检测系统的研制  

Development of the Full Fiber Optic Sensor Measuring System For Steel Cantilever Structure

作　　者：杨国标[1] 朱启荣[1] 曾伟明[1] 

机构地区：[1]同济大学航空航天与力学学院,上海200092

出　　处：《现代科学仪器》2007年第2期64-66,共3页Modern Scientific Instruments

基　　金：国家自然科学基金资助项目(10672124)。

摘　　要：本文研制了基于马赫——曾德(Mech-Zehnder)干涉原理的全光纤传感检测系统,其优点是调节方便、性能稳定、抗干扰能力强。应用该系统在钢制悬臂梁结构上进行了静载应变检测和外加信号作用下的强迫振动检测,测量了该结构件的频率及振幅,其结果与同时进行的电测结果相近,说明光纤传感器用于结构件的振动测量是可靠的。本系统的研制也拓展了光测力学新方法,为实验教学提供了新的仪器。Abstract The fiber optic sensor measuring system based on the Mech - Zehnder interferometry is developed in the paper. The system has the some advantages： convenient adjusting, stable performance and strong ability of anti - interference, etc. The system is also introduced into the vibration study on measuring the frequency and amplitude of the vibration subjected to force and free vibration with attenuation of the steel cantilever structure. The results of fiber optic sensor measurement approximate to the results of electronic strain gauge, so it is reliable to use fiber optic sensor in the vibration measurement of structure. The system has not only developed Optical Mechanics, but also present new equipment for experimental teaching.

关 键 词：光纤传感器 应变检测 振动检测 光测力学 实验教学 

分 类 号：TP274.4[自动化与计算机技术—检测技术与自动化装置]