Non-contact Measurement of Damaged External Tapered Thread Based on Linear Array CCD

摘要：

The non-contact measurement of external tapered thread based on linear array CCD is presented to decrease the measuring error caused by local damage area contrast to the measurement with mechanical gauges. The thread is scanned by linear array CCD and the signal is processed by first order difference to obtain thread contour. For the thread with damage on tooth flank and deformation on generating line, the Hough transform and weighted least squares are adopted to reduce the local defects and to set up fitted thread contour equations that can reflect the real dimension. Then the dimensions can be calculated based on these equations according to the definition. The paper also presents the method to evaluate the local damage. Experiment shows that the method is suitable for the measurement of damaged thread.

作者: F J He R J Zhang Z J Du X M Cui

作者单位: College of Mechanical Science and Engineering, Daqing Petroleum Institute, Daqing,163318, China;Robo College of Mechanical Science and Engineering, Daqing Petroleum Institute, Daqing,163318, China Robotics Institute, Harbin Institute of Technology, Harbin, 15001, China

会议类型: 国际会议

会议名称: 第四届仪器科学与技术国际会议( 4th International Symposium on Instrumentation and Science and Tcchnology)

会议地点: 哈尔滨

会议语种:英文

页码: 676-680

在线出版日期: 2006-08-08（万方平台首次上网日期，不代表论文的发表时间）