Real-time measurement system based on laser photoelectric conversion for detecting weld pool oscillation frequency in continuous P-GTAW

doi:10.12073/j.hjxb.2018390017

	Real-time measurement system based on laser photoelectric conversion for detecting weld pool oscillation frequency in continuous P-GTAW
	Li, Chunkai 1,2; Shi, Yu 1,2; Du, Leiming 1; Gu, Yufen 1; Zhu, Ming 2
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2018-01-25
卷号	39 期号:1 页码:75-78 and 88
关键词	Electric welding Fast Fourier transforms Image processing Signal to noise ratio Time measurement Welds High sampling rates Laser vision Oscillation frequency Photoelectric conversion Real time measurements Real-time detection Weld pool Welding conditions
ISSN号	0253360X
DOI	10.12073/j.hjxb.2018390017
英文摘要	There exists a direct relationship between the weld pool oscillation frequency and volume of weld pool. But the detection of oscillation frequency in on-time travelling condition is difficult. In order to detect the oscillation frequency in real-time, a new laser photoelectric conversion method was proposed. Several experiments with travelling welding condition were conducted and the frequency was extracted by Fast Fourier Transform. The results show that image laser-vision method has a strong anti-disturbing ability and high signal-to-noise while the defect of image process is complex and real-time detection becomes worse. The laser photoelectric conversion method with high sampling rate, high processing speed and simple device can completely satisfy the requirement of measuring the oscillation frequency of weld pool in practical welding process. © 2018, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114183]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Advanced Processing and Recyling of Nonterrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Non-Ferrous Metal Alloys and Processing of the Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Chunkai,Shi, Yu,Du, Leiming,et al. Real-time measurement system based on laser photoelectric conversion for detecting weld pool oscillation frequency in continuous P-GTAW[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2018,39(1):75-78 and 88.
APA	Li, Chunkai,Shi, Yu,Du, Leiming,Gu, Yufen,&Zhu, Ming.(2018).Real-time measurement system based on laser photoelectric conversion for detecting weld pool oscillation frequency in continuous P-GTAW.Hanjie Xuebao/Transactions of the China Welding Institution,39(1),75-78 and 88.
MLA	Li, Chunkai,et al."Real-time measurement system based on laser photoelectric conversion for detecting weld pool oscillation frequency in continuous P-GTAW".Hanjie Xuebao/Transactions of the China Welding Institution 39.1(2018):75-78 and 88.