测量精度是衡量测量方案的重要指标,选择测量方案时,应对各种方案的精度进行估计。本文应用最佳估计理论分析平板的测量方案及其测量精度。一、测量方案用水平仪和桥板检验大型平板和工作台,根据测量网格的布局,可分成三种测量方案: 1.简单联系法 Measurement accuracy is an important measure of measurement programs, the choice of measurement programs, the accuracy of various programs should be estimated. In this paper, the best estimation theory is used to analyze the measurement scheme of the slab and its measurement accuracy. First, the measurement program with the spirit level and bridge inspection Large flat and table, according to the layout of the measurement grid, can be divided into three measurement programs: 1. Simple contact method