全站仪测距常数两种检定方法的对比测试  

Comparative test of two calibrating methods for total stations ranging constant

作　　者：许江涛 杨锟 黄立刚 岳峰 昌红义 XU Jiangtao;YANG Kun;HUANG Ligang;YUE Feng;CHANG Hongyi(The Center of Shaanxi Metrological Supervision and Verification for Surveying and Mapping Instruments,Xi′an,Shaanxi 710054,China)

机构地区：[1]陕西测绘仪器计量监督检定中心,陕西西安710054

出　　处：《测绘标准化》2023年第1期61-65,共5页Standardization of Surveying and Mapping

摘　　要：全站仪测距常数检定可以判定全站仪测距性能是否合格,同时为高精度测量提供测距改正,以获得高准确度的测距结果。本文依据全站仪测距部分检定规程JJG 703—2003《光电测距仪》中规定的两种测距常数(加常数、乘常数)检定方法,由两家检定机构使用多段基线组合比较法和直接比较加频率测定法对同一台全站仪的测距常数进行检定。结果表明:两种方法的检定结果虽有所不同,但差异较小,两种方法检定结果的可信度都较高。由于多段基线组合比较法的检定环境与真实使用场景相同,因此将其测距常数检定结果用于修正全站仪测量成果,得到的测量结果更接近于真值,而直接比较加频率测定法检定结果更接近于理论值。The calibration of total station ranging constant can determine whether the ranging performance of total station is qualified,and provide range correction for high precision measurement,so as to obtain high accuracy ranging results.In this paper,according to the two calibrating methods of ranging constant stipulated in the Electrooptical Distance Meter JJG 703—2003,the ranging constant of the same total station is calibrated by two verification institutions using the multi stage baseline combination comparison method and the direct comparison plus frequency measurement method.The results show that the difference between the two methods is small and the reliability is high.Since the calibration environment of the multi segment baseline combination comparison method is the same as the real application scenario,the calibration results of its ranging constant are used to correct the measurement results of the total station,and the obtained measurement results are closer to the true value,while the calibration results of the direct comparison plus frequency measurement method are closer to the theoretical value.

关 键 词：全站仪检定 加常数 乘常数 检定方法 

分 类 号：P241.3[天文地球—测绘科学与技术]