Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe

doi:10.3969/j.issn.1671-7775.2012.04.015

	Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe
	He, Shiquan 1,2; Xiao, Hong 3; Fan, Ding 3; Shi, Yu 3
刊名	Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition)
	2012-07-01
卷号	33 期号:4 页码:449-452
关键词	Alignment Colorimetry Defects Luminance Seam welding Temperature measurement Colorimetric temperature measurement Controlled temperature Effective temperature Image features LabVIEW virtual instrument Morphemically Visual inspection Welded pipes
ISSN号	16717775
DOI	10.3969/j.issn.1671-7775.2012.04.015
英文摘要	To obtain real time detection of unfitness defect in high-frequency weld(HFW) pipe, a CCD visual measurement system was developed. The characteristic of the unfitness defect in captured image was analyzed. The image processing of misalignment was conducted by morphology method to extract edge image and the width and brightness of welding seam. The results show that the width and brightness of welding seam can be used as characteristic parameters to detect the unfitness defect in HFW pipe and to establish a visual system for inspecting welding unfitness. At the LabVIEW virtual instrument, the controlled temperature system of HFW pipe was established by colorimetric temperature measurement to realize controlled temperature test. The test results show that the influences of dust, moisture and other interference factors on temperature measurement can be better reduced by colorimetry temperature measurement mode to improve the stability and precision of temperature. At the basis of stable and accurate temperature measurement, the effective temperature control system can be realized.
语种	中文
出版者	Journal of Jiangsu University (Natural Science Edition)
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111548]
专题	材料科学与工程学院
作者单位	1.Post Doctorate Work Station, Zhejiang Kingland Pipeline Science and Technology Limited Company, Huzhou, Zhejiang 313000, China; 2.School of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China; 3.Key Laboratory of Non-Ferrous Metal Alloys and Processing of Ministry of Education, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
推荐引用方式 GB/T 7714	He, Shiquan,Xiao, Hong,Fan, Ding,et al. Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe[J]. Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition),2012,33(4):449-452.
APA	He, Shiquan,Xiao, Hong,Fan, Ding,&Shi, Yu.(2012).Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe.Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition),33(4),449-452.
MLA	He, Shiquan,et al."Image processing and feature extracting of welding seam misalignment for high-frequency welded pipe".Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition) 33.4(2012):449-452.