The External Thread Detection of Liquefied Gas Valve Based on Image Processing Technology

Abstract:

For liquefied gas valve external thread detections, the gauges traditional external thread detection. Although this method simply, easy to operate, but the detection process in contact with the thread and thus cannot guarantee the quality of the thread and the low detection efficiency. The external thread detection of liquefied gas valve based on image processing techniques adopts a non-contact detection. CCD camera collects image of the external thread and transmitted to the computer by the acquisition board. Thus image preprocessing, image segmentation and then get the thread edge contour. Finally, Matched thread profile .By comparing with the standard size tape to determine eligibility. The experimental results show that this method is feasible.

• Periodical: Advanced Materials Research (Volume 658)
• Pages: 551-554
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.658.551
• Online since: January 2013
• Authors: Xiao Dong Wang, Bo Liu, Xiao Wei Chen, Wei Zhang, Zhi Gang Guo
• Keywords: Edge Detection, External Thread of Liquefied Gas Valve, Image Preprocessing, Image Segmentation

References

[1] Xiao En Xu: Thread measurement. （Machinery Industry Pres1986).

[2] ZHANG SHJ, AI J, L I ZH F, et al: Size measurement with digital image processing technology. Journal of University of Science and Technology Beijing. (2002), p.284.

[3] ZHANG SH J, L I Q L, L I ZH F, et al: Study and application of digital image processing on CCD in industrial measurement. Journal of University of Science and Technology Beijing (2003).

[4] HONG H T, ZHAO H: Study on the imaging technology for object measuring. Chinese Journal of Scientific Instrument (2001).

[5] Zheng Liang Xia. Li JiuXian: Digital image processing. Southeast University Press (2005).

[6] Wu Li de: computer vision. Fudan University Press (1993).