直线度误差双节距测量方法及分析

Analysis of bipacth measurement for the line scale errors

研究了采用双节距法测量直线度误差，并用最小二乘平差方法进行数据处理，从而提高了原始数据的精度，通过比较该法与传统方法的精度差异，说明该法的正确性和可行性。

Research is made on adopting the bipacth measurement to survey the line scale errors and the least square method to deal with dare in order to increase the precision of the original data. With the comparison to the traditional ones, provision is obtained to justify the correctness and reasibility.