Thread inspection is an important part within the scope of modern industry inspection for it is the key to guaranteeing the quality of the product. In order to meet the present demand of the market, a kind of intellectualized test method of small pitch of thread parameters is put forward in this paper. Relatively to other detection methods, it can realize non-contact, rapid and accurate measurement of the thread pitch screw parameters. The process of the acquisition of thread image and data processing is also introduced in this paper. And the real-time measurement has been done as well, to prove the feasibility of this method.
XuA., XiangZ. and ChenZ., Development of non-contact automatic thread measuring instrument, Journal of Zhejiang University, (2005).
2.
TongQ.B., DingZ.L. and ChenJ.C., The research of screw thread parameter measurement based on position sensitive detector and laser, Institute of Physics Publishing (48) (2006), 561-565.
3.
SharonT., International conference on electronic measurement & instruments, S.W. Shen, Research based on the CCD vision thread parameters automatic detection technology, NSTL, Xi'an (2) (2007), 969-973.
4.
YanT., LinL., TangJ. and KeL., The development direction of multi-parameter detection of thread, Infrared and Laser Engineering (2008).
5.
YuanP., YuanZ. and OuyangZ., Non-contact measurement of thread parameters based on machine vision systems, Pipeline Technology and Equipment, (2008).
6.
SuX., HuangF. and ChengY., Based on the DSP and geometric parameters of linear array CCD male study on non-contact measurement methods, Test and Measurement Technology, (2009).
7.
DengX., LiaoJ., GaoZ., ZhongH. and LiaoS., Three coordinate measuring machine with non-contact measurement in the application of screw, Measurement Technology of China, (2006).
8.
WangQ., Application technology of image sensor, Beijing: Electronic Industry Press, 2003.
9.
ZhangD., Digital image processing of MATLAB, Beijing: Mechanical Industry Press, 2012.
10.
LiuG., WangL. and DongY., Digital image processing of MATLAB, Beijing: Mechanical Industry Press, 2010.
11.
YinH., The detection algorithm research of thread parameter based on computer vision, Master Degree Theses Of Master Of China Excellent Full-Text Database, 2007.
12.
WuD., The research of measurement and control system of thread based on machine vision, Master Degree Theses Of Master Of Chinese Excellent Full-Text Database, 2010.
13.
ChenQ., ZhangW. and ZhangQ., The research of automatic measuring system of thread based on image analysis technology, The Chinese Test, 2012.
14.
HuangA., AnX. and LiL., Digital image processing and analysis, Beijing: China Water Conservancy Press, 2005.
15.
CuiY., GeX. and ZhangH., The research of subpixel localization method of straight edge of mechanical parts, Semiconductor Photoelectric 2010.
