上海大学学报（英文版）
上海大學學報（英文版）
상해대학학보（영문판）
JOURNAL OF SHANGHAI UNIVERSITY (ENGLISH EDITION)
2004年
2期
208-212
,共5页
Joshua MUTAMBI%俞立钧
Joshua MUTAMBI%俞立鈞
Joshua MUTAMBI%유립균
screw threads%quality inspection%accuracy%digital image processing
This paper describes the use of computer-aided measurement for external metric screw threads. Thread parameters, including thread pitch, thread angle, pitch diameter and major diameter, were measured with CCD cameras and image analysis software.New technologies such as digital image processing were used to increase the efficiency of measurements. In this study, by reconstructing the toolmaker's microscope, the computer-aided semi-automated measuring system was developed, which could evaluate the accuracy of screw thread profile. It is concluded that the measurement accuracy is comparable to that of traditional toolmaker's microscope method.
