一种用于高精确度双框架伺服系统的标定方法  

A calibration method for high-precision double gimbals servo system

作　　者：张勇 吴浩 王伟明 佀明华 李欣 ZHANG Yong;WU Hao;WANG Weiming;SI Minghua;LI Xin(32181 Unit of PLA,Shijiazhuang Hebei 050000,China;Department of Electronic and Optical Engineering,Army Engineering University(Shijiazhuang Campus),Shijiazhuang Hebei 050003,China;Department of Electrical and Electronics Engineering,Shijiazhuang Tiedao University,Shijiazhuang Hebei 050043,China)

机构地区：[1]中国人民解放军32181部队,河北石家庄050000 [2]陆军工程大学电子与光学工程系,河北石家庄050003 [3]石家庄铁道大学电气与电子工程学院,河北石家庄050043

出　　处：《太赫兹科学与电子信息学报》2019年第4期610-615,共6页Journal of Terahertz Science and Electronic Information Technology

基　　金：国家自然科学基金资助项目(51305455);陆军装备部资助项目(ZS2014070140A12002)

摘　　要：为实现对空间动态目标的稳定跟踪,介绍了一种高精确度双框架结构伺服系统,通过标定提高了其指向精确度。利用旋转变压器作为角度位置传感器,通过激光测距机和相机实现远场目标的稳定跟踪。利用高精确度单轴转台、激光测距机和平面反射镜对伺服系统双框架指向精确度进行标定实验测量。针对伺服系统几何误差,对获得的采样数据进行分段直线拟合,并写入控制程序。对测量数据进行分段检索定位,通过拟合直线参数对数据进行修正。实验结果表明,标定后的双框架伺服系统指向精确度优于16",可有效提高伺服系统指向精确度。In order to achieve the stability tracking of the spatial dynamic target,a high-precision double gimbals servo system is introduced and its pointing accuracy is improved by the calibration experiment.The resolver is used as the angle position sensor in the servo system which can realize the steady tracking of the far-field target by the laser rangefinder and the camera.The pointing accuracy of the servo system is measured by using the high-precision single-axis turntable,laser rangefinder and plane mirror.For the geometric error of servo system,the sampled data is fitted by sectional line and written into the control program.The measurement data is segmented and positioned,and is corrected by fitting the straight line parameters.The experimental results show that the pointing accuracy of double gimbals servo system has reached 16".This method can effectively improve the pointing accuracy of the servo system.

关 键 词：伺服系统 标定 指向精确度 旋转变压器 

分 类 号：TN249[电子电信—物理电子学] TH161.7[机械工程—机械制造及自动化]