本文采用可编程逻辑器件、VisualBasic语言以及统计方法 (包括误差处理 )来评定仪器的位置精度。该方法特别适用于大尺寸测量仪位置精度的评定 ,实验结果表明该方法能够快速、准确、形象地给出评定结果 This article uses programmable logic devices, VisualBasic language, and statistical methods (including error handling) to assess the position accuracy of the instrument. The method is especially suitable for evaluating the position accuracy of large-size measuring instruments. The experimental results show that the method can quickly, accurately and vividly give the evaluation results