一种基于比长基线场天文大地测量的陀螺经纬仪校准装置  

A Gyrotheodolite Calibration Device Based on Astronomical Geodetic Surveyingon the Baseline Field

作　　者：彭友志[1] 何伟 李冀[1] 刘海波[1] 

机构地区：[1]中国地震局地震研究所(地震大地测量重点实验室),武汉市洪山侧路40号430071 [2]深圳市计量质量监测研究院,深圳市民康路114号518055

出　　处：《大地测量与地球动力学》2016年第4期327-330,共4页Journal of Geodesy and Geodynamics

基　　金：中国地震局地震研究所所长基金(IS201306103)~~

摘　　要：提出以场地条件类似的比长基线场代替天文大地点进行陀螺经纬仪的校准。从观测原理的误差分析入手,分析对测量精度的要求和仪器选取;将GPS和工业电子经纬仪用于天文大地测量,并对观测方法加以改进,建立一套基于比长基线场的陀螺经纬仪方位角校准装置;最后,给出校准装置的不确定度分析。实验证明,其精度能达到规程的要求。Instead of astronomical geodetic points,we proposed to put the baseline field,which has similar site conditions,forward.This paper analyzes the principle of starting from the observed error,then examines the measurement accuracy requirements and equipment selection.We use the GPS and industrial electronic theodolite in astronomical geodetic surveying and improve the methods of observation.After establishing the gyrotheodolite azimuth calibration device based on the baseline field,we do an experiment that shows that the accuracy can satisfy the specification requirements.Furthermore,the uncertainty analysis of the calibration device is given.

关 键 词：陀螺经纬仪 校准 天文方位角 北极星观测 不确定度 

分 类 号：P241[天文地球—测绘科学与技术]