超磁致伸缩作动器激光干涉位移测量系统  

Laser Interferometric Displacement Measurement System for Giant Magnetostrictive Actuator

作　　者：王安明[1,4] 孟建军[1,2,3] 白欢[1] 杨杏[1] WANG An-ming;MENG Jian-jun;BAI Huan;YANG Xing(School of Mechanical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Mechatronics T&R Institute,Lanzhou Jiaotong University,Lanzhou 730070,China;Engineering Technology Center for Informatization of Logistics & Transport Equipment,Lanzhou 730070,China;School of Traction Power,Xi'an Railway Vocational & Technical Institute,Xi'an 710014,China)

机构地区：[1]兰州交通大学机电工程学院,甘肃兰州730070 [2]兰州交通大学机电技术研究所,甘肃兰州730070 [3]甘肃省物流及运输装备信息化工程技术研究中心,甘肃兰州730070 [4]西安铁路职业技术学院牵引动力学院,陕西西安710014

出　　处：《测控技术》2019年第2期123-127,141,共6页Measurement & Control Technology

基　　金：国家自然科学基金项目(61563027);兰州交通大学优秀平台支持(201604)

摘　　要：由于超磁致伸缩作动器的位移在微米级,对其精确测量至关重要,针对激光干涉测量技术中分立元件迈克尔逊激光干涉仪存在环境要求高、调整烦琐和易受干扰等缺点,采用全光纤迈克尔逊干涉仪简化测量前的准备工作;并借助高性能动态信号采集卡,配合Lab VIEW图形化编程工具,应用贝塞尔函数干涉条纹细分技术提高测量精度,开发了超磁致伸缩作动器位移测量系统。实验证明测量误差与理论计算相符,表明测量结果是准确可靠的。该系统适用于超磁致伸缩作动器位移的实验研究和现场测量,可为微位移的测量提供一种参考方法。Owing to the displacement of the giant magnetostrictive actuator is in the micron level,it is very important for its accurate measurement.In order to overcome the shortcomings of the Michelson interferometer,such as high environmental requirements,complicated adjustment and easy to be interfered in the laser interferometry,the all fiber interferometer is used to simplify the preparatory work before measurement.With the help of high-performance dynamic signal acquisition card and LabVIEW graphical programming tool,the Bessel function interference fringe subdivision technology is used to improve the measurement accuracy,and a giant magnetostrictive actuator displacement measurement system is developed.Experiments show that the measurement errors are within the theoretical range,indicating that the measurement results are accurate and reliable.The system is suitable for experimental research and field measurement of displacement of giant magnetostrictive actuators,and can provide reference for the measurement of micro displacement.

关 键 词：超磁致伸缩作动器 位移 激光干涉 贝塞尔函数 LABVIEW 

分 类 号：TH822[机械工程—仪器科学与技术] TP202[机械工程—精密仪器及机械]