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首页> 外文会议>Conference on Recent Developments in Traceable Dimensional Measurements Jun 20-21, 2001, Munich, Germany >Development of a calibration system for electronic distance measuring instruments
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Development of a calibration system for electronic distance measuring instruments

机译：开发电子测距仪校准系统

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This paper describes the design of a facility to calibrate electronic distance measuring instruments (EDMs), as used in surveying (electronic theodolites) and large scale industrial measurement, over the range of 0 to 60 m. The combined uncertainty of the system at 60 m, estimated at the 95% confidence level, is expected to be 0.4 mm. The EDM is compared with a heterodyne laser measurement system in a back-to-back configuration. The trolley carrying the optics travels on aluminium rails. In order to improve the straightness of the path followed by the reflectors during measurement, the trolley optics are mounted on a two-axis motorised translation stage which uses a quadrant diode to track an additional guiding laser beam parallel to the required path. Once programmed, the trolley tracking electronics are autonomous and no connection is necessary to external power or control sources for that. However, radio frequency remote control of the motor propelling trolley motor would assist the measurements.
机译：本文介绍了一种用于校准电子测距仪（EDM）的设备的设计，该设备用于测量（电子经纬仪）和大规模工业测量，范围为0至60 m。该系统在60 m处的总不确定度（估计为95％置信度）预计为0.4 mm。将EDM与背对背配置中的外差激光测量系统进行比较。载有光学元件的手推车在铝制导轨上移动。为了提高测量过程中反射镜所经过的路径的平直度，手推车光学装置安装在两轴电动平移台上，该平台使用象限二极管跟踪平行于所需路径的附加引导激光束。编程后，手推车跟踪电子设备将自动运行，无需为此连接外部电源或控制源。但是，对小车推进电机的射频遥控将有助于测量。

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