激光对中仪校准装置及校准方法的研究  

Research on Calibration Device and Method of Laser Alignment Instrument

作　　者：龙宽 陈峰 乔磊[2] 孙安斌[2] 瞿剑苏[2] LONG Kuan;CHEN Feng;QIAO Lei;SUN Anbin;QU Jiansu(Aecc South Industry Company Limited Co.,Ltd.,Ahuzhou,Hunan 412000;Changcheng Institute of Metrology&Measurement,Beijing 100095)

机构地区：[1]中国航发南方工业有限公司,湖南株洲412000 [2]航空工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2020年第6期31-35,共5页Metrology & Measurement Technology

基　　金：国家“十三五”技术基础科研项目(JSJL2019205A001)。

摘　　要：目前激光对中仪校准主要采用的方法为垫量块法,但是该方法存在操作复杂、工作效率低、可靠性低等缺点。本文提出了一种集光束对准与二维定位误差校准于一体的激光对中仪快速校准方法,并研制了相应的校准装置。该装置采用激光头固定器安装对中仪的被测单元,利用光栅式二维移动平台改变被测单元位置,通过三维回零偏置转台安装和调整对中仪的基准单元,利用自研的光栅数显表实时观测和显示X,Y轴位置及状态信息。该装置测量范围为40 mm×40 mm,测量扩展不确定度为3.2μm,具有准确性高、操作方便快捷、可靠性好等优点,具有实际应用价值和技术借鉴意义。At present,the calibration method of laser centering instrument is mainly based on the cushion gauge block method,but this method has the disadvantages of complex operation,low efficiency and low reliability.In this paper,a fast calibration method of laser centering instrument is proposed,which integrates beam alignment and two-dimensional positioning error calibration,and develops the corresponding calibration device.The device uses the laser head holder to install the measured unit of the centering instrument,uses the grating type two-dimensional mobile platform to change the position of the measured unit,installs and adjusts the reference unit of the centering instrument through the three-dimensional zero return offset turntable,and uses the self-developed grating digital display meter to observe and display the X-axis and Yaxis position and status information in real-time.The measurement range of the device is 40 mm×40 mm,and the expanded uncertainty of measurement is 3.2μm.It has the advantages of high accuracy,convenient operation and good reliability.It has practical application value and technical reference significance.

关 键 词：激光对中仪 快速校准 二维定位 光束对准 

分 类 号：TB9[一般工业技术—计量学]