现有激光跟踪仪评定方法Methodforhowto.ppt
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现有激光跟踪仪评定方法Methodforhowto.ppt

现有激光跟踪仪评定方法Methodforhowto.ppt

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Introduceaboutlasertracker’sperformanceevaluation(现有激光跟踪仪评定方法)Methodforhowtocalibratealasertracker’sangle&distance(激光跟踪仪测角和测距精度的校准方法)c(双轴激光跟踪仪校准装置)4DesignplansforLasertrackercalibrationdevice(4种跟踪仪校准装置的设计方案)1Lasertracker’sperformanceevaluationLasertracker(linearslider)whosestandardmagnitudeisreferencelength;(激光干涉仪(直线导轨)--标准量是参考长度)Lineartargetarraywhosestandardmagnitudeisthedistancebetweentargetcentercoordinatesandthetargetitself.(直线目标阵列--标准量是目标中心点坐标和目标之间距离)序号2Due-axisLasertrackercalibrationprinciple激光跟踪仪双轴校准原理BasicPrinciple--Placedtrackermirrorandinterferometermirroronthesameworkbench,whentheworkbenchismovedacertaindistance,displacementmeasuredbytheinterferometer-L0andcoordinatesoftwotargetpointsmeasuredbytracker--P1,P2canbeobtained.Thenthedistancebetweenthe2points(L)canbecalculatedbythefollowingformula:inwhichAmeansanglebetween2targetpoints.基本原理--跟踪仪的反射镜与干涉仪的反射镜放置在同一工作台上,当工作台移动一定距离后,得到干涉仪的位移量L0和跟踪仪的两点坐标P1、P2,它们之间的距离为L,其中A为两目标点之间的交角。Remaintracker'sazimuthandpitchangleunchanged当方位角和俯仰角不变时3Due-axisLasertrackercalibrationdevice双轴激光跟踪仪校准装置HorizontalXaxis:10mprecisionlinearguiderail,lengthmeasuringsystemVerticalYaxis:2mlinearguidesystem,lengthmeasuringsystem4environmentalcompensationsystem,dual-axismotioncontrollingsystem,Analysisingsoftwareplatform,etc.(水平X轴:10m精密直线导轨、长度测量系统垂直Y轴:2m直线导轨系统、长度测量系统四路环境补偿系统双轴运动控制系统分析处理软件应用平台等组成。)10mlongprecisionlinearguiderailwhichhascogbeltstructure,feature:fastmovementspeed,cansavetimeofcalibrating.Supportingmechanism--selectmarbleplatformwithhighrigidityandstabilityasareferencefeature:highflatnessandstraightnessaccuracy,large-areaworkbenchenvironmentalcompensationuints--4branchesoftemperature,1branchofairpressure,1branchofhumidityfeature:placedonhorizentalguiderail,closedtolightpath,canmeasureenvironmenttemperaturearoundlightpathwithhigheraccuracy.10m精密直线导轨---选用齿形带结构的直线运动导轨特点:运动速度快,可大大减少校准所用的时间。支撑机构---选择刚性好稳定性强的大理石平台作为基准特点:平面度和直线度精度高,工作平台面积大。环境补偿单元---4路温度、1路气压、1路湿度特点:放置在水平导轨上,与光路靠近,可更准确的获得测量光路所处环境的温度值。laserint