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Intelligent detection method for seeding timing in sapphire processing
Cao, Jingyang1,2; Qiao, Tiezhu1,2; Zhang, Haifeng3; Yan, Gaowei4; Dong, Huijie1
作者部门飞行器光学成像与测量技术研究室
2022-09-30
发表期刊Measurement: Journal of the International Measurement Confederation
ISSN02632241
卷号201
产权排序3
摘要

In sapphire processing by the Kyropoulos method, the detection of seeding timing is the core technology. Existing detection methods are incapable of tracking spoke feature motion on the liquid surface and cannot effectively guide sapphire seeding. Therefore, this paper proposes an innovative visual-perturbation-velocity-fitting method for sapphire seeding timing detection. First, the concept of perturbation velocity, which can reflect the flow state of the melt surface, is presented. Then, the position of spoke feature points is obtained by computer vision and calculated by multi-frame interactive periodic detection. The fitting function model corresponding to the perturbation velocity in different flow states is established. Finally, the seeding timing is determined by the transition of the flow state and the stability of the flow. The experimental results show that the proposed method can improve the seeding success rate from 76.7% to 93.3% and the average successful seeding time from 5.6 h to 4.5 h. © 2022 Elsevier Ltd

关键词Visual-perturbation-velocity-fitting (VPVF) Computer vision Perturbation velocity Seeding timing Sapphire
DOI10.1016/j.measurement.2022.111745
收录类别SCI ; EI
语种英语
WOS记录号WOS:000863175600004
出版者Elsevier B.V.
EI入藏号20223512630818
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/96133
专题飞行器光学成像与测量技术研究室
通讯作者Dong, Huijie
作者单位1.Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education, Taiyuan University of Technology, Taiyuan; 030024, China;
2.College of Optoelectronics, Taiyuan University of Technology, Taiyuan; 030024, China;
3.Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China;
4.College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan; 030024, China
推荐引用方式
GB/T 7714
Cao, Jingyang,Qiao, Tiezhu,Zhang, Haifeng,et al. Intelligent detection method for seeding timing in sapphire processing[J]. Measurement: Journal of the International Measurement Confederation,2022,201.
APA Cao, Jingyang,Qiao, Tiezhu,Zhang, Haifeng,Yan, Gaowei,&Dong, Huijie.(2022).Intelligent detection method for seeding timing in sapphire processing.Measurement: Journal of the International Measurement Confederation,201.
MLA Cao, Jingyang,et al."Intelligent detection method for seeding timing in sapphire processing".Measurement: Journal of the International Measurement Confederation 201(2022).
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