A Parameter Inspection Method of Dual-Status Spring Based on Contour Detection and Location

This paper presents a type of special Dual-Status spring parameter inspection method which is in assembly line. In order to measure contour parameter, this paper designs the measurement course and illustrates method of image processing which carries on object location and contour parameter calculating of Dual-Status spring using Hough Transform. This method is proved to be useful and efficient in practice. This paper is innovative in four facts. First, Hough Transform is never used to measure Dual-Status spring contour parameter. Second, Hough Transform can work well no matter what the spring lies toward. Third, the method does not cause elastic deformation which is from artificial influence. Finally, it can be used to measure multi-kind of parts in the line. This method can be widely used in other similar applications.