CMM Measurement Strategies

这是本人刚从英国NPL网上找到的!关于坐标测量机的资料,英语好的可以下载研究."Measurement Good Practice Guide No. 41".Abstract: This guide covers the selection of the number of measurement points when using Co-ordinate Measuring Machines (CMMs) and gives advice on the compromise between accuracy and speed. It provides guidance on sampling criteria for standard features and advice on measurements that involves projections of features over long distances. It covers cleanliness, part loading/alignment and the effect of temperature,surface finish and geometry on the final result. It also contains information on basic measurement principles, common measurement requirements, CMM software functionality in relation to drawing requirements and good metrology practice when using CMMs with CAD data to inspect parts.