Research on Optical Microscope Measuring Method of External Thread Parameters Based on Charge-Couple Device

Abstract:

As an important component of the fasteners members, threads quality, depending on whether its geometric parameters meet requirements or not, will affect the reliability of the whole machine system. Therefore, geometrical parameters measurement of the thread is especially important. Aiming at the characteristics of the thread teeth type, this paper adopt a machine vision measurement method based on the universal tool microscope and CCD .This paper also analyzes the causes and influences of the teeth shading and proposes a corresponding improvement method, specific to the shading problem in the process of backlighting projection. After experimenting, this method can effectively improve the accuracy and efficiency of the male parameters measurement.

• Periodical: Applied Mechanics and Materials (Volume 163)
• Pages: 39-43
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.163.39
• Online since: April 2012
• Authors: Wen Qi Wang, Dong Xiang Shao, Jian Feng Jiang, Guang Lin Wang
• Keywords: Image Processing, Measuring Algorithm, Teeth Shading, Thread Parameter

References

[2] Y. Tong, L. Li and J. T. Tang: Infrared and Laser Engineering, Vol. S1(2008) No. 4 , pp.58-60.

[3] A.Q. Xu, Z.Q. Xiang and Z.C. Chen: Journal of Zhejiang university (Engineering version). Vol. 39(2005) No. 8, pp.1179-1183.

[4] Q.B. Tong, Z.L. Ding and J.C. Chen: Journal of Physics, Vol. 48 (2006) , p.561–565.

[5] S.Y. Yang: VC++ Image Processing Program Design(Tsinghua University Press, China 2003), pp.14-123. (In Chinese).

[6] X.W. Gao, G. Chen and Y. Li: Journal of Computer-Aided Design & Computer Graphics, Vol. 21(2009) No. 2, pp: 268-274.