引张线式水平位移计系统误差分析  

System Error Analysis of Alignment Horizontal Displacement Equipment

作　　者：李之中[1] 刘冠军[1] 

机构地区：[1]国网电力科学研究院/南京南瑞集团公司,江苏省南京市210003

出　　处：《水电自动化与大坝监测》2009年第6期62-64,共3页HYDROPOWER AUTOMATION AND DAM MONITORING

摘　　要：目前国内一般采用不测量时卸载50%砝码的方法以减小引张线式水平位移计铟钢丝的徐变量,而国外认为铟钢丝的徐变量很小,所以不必进行卸载。文中通过理论计算和试验分析总结了对铟钢丝进行卸载的必要性,同时归纳了一些引张线式水平位移计的使用经验。At present, domestic manufacturers often take the way of unloading 50% of the weight to reduce creeping of invar wire in the absence of measurement. But foreign manufacturers consider that the creeping of wire is very small, so they do not unload the weight. In this paper, theoretical calculations and experimental analysis of the stainless invar wire are used to indicate the necessity of weight unloading. At the same time, some practical experience of the application of the alignment horizontal displacement equipment is summarized.

关 键 词：引张线式水平位移计 铟钢丝 徐变量 系统误差 

分 类 号：TV698.1[水利工程—水利水电工程]