Intelligent detection method for seeding timing in sapphire processing | |
Cao, Jingyang3,4; Qiao, Tiezhu3,4; Zhang, Haifeng2; Yan, Gaowei1; Dong, Huijie4 | |
刊名 | Measurement: Journal of the International Measurement Confederation |
2022-09-30 | |
卷号 | 201 |
关键词 | Visual-perturbation-velocity-fitting (VPVF) Computer vision Perturbation velocity Seeding timing Sapphire |
ISSN号 | 02632241 |
DOI | 10.1016/j.measurement.2022.111745 |
产权排序 | 3 |
英文摘要 | 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 |
语种 | 英语 |
出版者 | Elsevier B.V. |
内容类型 | 期刊论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/96133] |
专题 | 西安光学精密机械研究所_动态光学成像研究室 |
通讯作者 | Dong, Huijie |
作者单位 | 1.College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan; 030024, China 2.Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; 3.College of Optoelectronics, Taiyuan University of Technology, Taiyuan; 030024, China; 4.Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education, 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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