温度对DiNi12数字水准仪i角误差的影响及应对措施  

Influence of Temperature on DiNi12 Digital Level Angle i Error and Corresponding Strategy

作　　者：李辉[1] 陈晓明[1] 刘广宽[1] 皇甫德银[1] 李伟[1] 

机构地区：[1]南京基准地震台,江苏南京210014

出　　处：《华南地震》2009年第2期49-53,共5页South China Journal of Seismology

基　　金：江苏省地震局青年基金(200604)

摘　　要：i角误差的大小和稳定是保证水准测量精度的一个重要条件,在实际观测中发现,DiNi12数字水准仪的i角误差不稳定,有随温度的升高而变化的趋势。通过对不同温度下的i角误差的观测,积累一定的观测数据,找出i角误差的变化规律,并采取多种措施最大限度减小i角误差对观测资料的影响,提高观测精度。It is discovered in the actual observations that the Angle i error of DiNi12 Digital Leveller is unstable and changeable and has the trend of changing with the rise of temperature. The magnitude and stability of Angle i error is one important condition to guarantee the precision of level measurement. Through observation of Angle i errors under different temperatures, accumulating observation data, finding out the changing pattern of Angle i errors and finally taking various kinds of measures, the influence of Angle i error on observation data is reduced to the maximum extent and the precision of observation is increased.

关 键 词：DiNi12数字水准仪 I角 误差 温度 

分 类 号：P315.62[天文地球—地震学]