精密工程测量中全站仪与球棱镜加常数测定方法探讨

摘要

精密工程测量中,高精度全站仪配合棱镜要实现精密测距首先要精确测定加常数误差。野外常用的加常数测定六段法不适合近距离范围,本文针对TDA5005全站仪及精密角偶棱镜CCR1.5″的加常数测定,提出四段法和MetroIn工业测量系统比较法。实验结果指出,两种方法都能有效地测定加常数,可靠性好,精度高,过程简单,容易实施。%In precise engineering survey, in order to achieve high precision distance data through total station and CCR, it must determine the additive constant error accurately. Because the six range method outfield and no longer fit to determinate additive constant in short distance, the paper puts forward four--range method and MetroIn industry measurement system comparison method based on TDA5005 total station and CCR1.5". The results show that both two methods can determinate additive constant accurately and credibly.