The MIVD method of optimal seeding state detection using image processing technology for sapphire crystal growth via the Kyropoulos method

Yu Liu; Tiezhu Qiao; Yi Yang; Haitao Zhang; Yusong Pang; Hong Chen

doi:10.1016/j.measurement.2019.107186

The MIVD method of optimal seeding state detection using image processing technology for sapphire crystal growth via the Kyropoulos method

Yu Liu^*, Tiezhu Qiao, Yi Yang, Haitao Zhang, Yusong Pang, Hong Chen

^*Corresponding author for this work

Transport Engineering and Logistics

Research output: Contribution to journal › Article › Scientific › peer-review

3 Citations (Scopus)

Abstract

The seeding technique is critical to the quality of the sapphire single crystal. The core of the seeding technique is the identification of seeding state. The MIVD method is proposed in the paper to detect the optimal seeding state. Compared with the OCS method, the MIVD method detects the characteristics of spoke pattern before a single point is formed on melt surface. Based on the similarity and periodicity of the melt motion, the optimal seeding state is detected by Fréchet distance. In the experiment, the MIVD method was compared with the OCS method and the artificial seeding method in terms of seeding efficiency and crystal quality. The MIVD method improves the quality of the sapphire crystal, at same time, it ensures seeding efficiency. The MIVD method is more suitable for practical production.

Original language	English
Article number	107186
Number of pages	11
Journal	Measurement: Journal of the International Measurement Confederation
Volume	151
DOIs	https://doi.org/10.1016/j.measurement.2019.107186
Publication status	Published - 2020

Keywords

Crystal quality
Fréchet distance
Multi-frame intercomparison visual detection (MIVD)
Seeding state detection
Spoke pattern

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10.1016/j.measurement.2019.107186

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title = "The MIVD method of optimal seeding state detection using image processing technology for sapphire crystal growth via the Kyropoulos method",

abstract = "The seeding technique is critical to the quality of the sapphire single crystal. The core of the seeding technique is the identification of seeding state. The MIVD method is proposed in the paper to detect the optimal seeding state. Compared with the OCS method, the MIVD method detects the characteristics of spoke pattern before a single point is formed on melt surface. Based on the similarity and periodicity of the melt motion, the optimal seeding state is detected by Fr{\'e}chet distance. In the experiment, the MIVD method was compared with the OCS method and the artificial seeding method in terms of seeding efficiency and crystal quality. The MIVD method improves the quality of the sapphire crystal, at same time, it ensures seeding efficiency. The MIVD method is more suitable for practical production.",

keywords = "Crystal quality, Fr{\'e}chet distance, Multi-frame intercomparison visual detection (MIVD), Seeding state detection, Spoke pattern",

author = "Yu Liu and Tiezhu Qiao and Yi Yang and Haitao Zhang and Yusong Pang and Hong Chen",

year = "2020",

doi = "10.1016/j.measurement.2019.107186",

language = "English",

volume = "151",

journal = "Measurement: Journal of the International Measurement Confederation",

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TY - JOUR

T1 - The MIVD method of optimal seeding state detection using image processing technology for sapphire crystal growth via the Kyropoulos method

AU - Liu, Yu

AU - Qiao, Tiezhu

AU - Yang, Yi

AU - Zhang, Haitao

AU - Pang, Yusong

AU - Chen, Hong

PY - 2020

Y1 - 2020

N2 - The seeding technique is critical to the quality of the sapphire single crystal. The core of the seeding technique is the identification of seeding state. The MIVD method is proposed in the paper to detect the optimal seeding state. Compared with the OCS method, the MIVD method detects the characteristics of spoke pattern before a single point is formed on melt surface. Based on the similarity and periodicity of the melt motion, the optimal seeding state is detected by Fréchet distance. In the experiment, the MIVD method was compared with the OCS method and the artificial seeding method in terms of seeding efficiency and crystal quality. The MIVD method improves the quality of the sapphire crystal, at same time, it ensures seeding efficiency. The MIVD method is more suitable for practical production.

AB - The seeding technique is critical to the quality of the sapphire single crystal. The core of the seeding technique is the identification of seeding state. The MIVD method is proposed in the paper to detect the optimal seeding state. Compared with the OCS method, the MIVD method detects the characteristics of spoke pattern before a single point is formed on melt surface. Based on the similarity and periodicity of the melt motion, the optimal seeding state is detected by Fréchet distance. In the experiment, the MIVD method was compared with the OCS method and the artificial seeding method in terms of seeding efficiency and crystal quality. The MIVD method improves the quality of the sapphire crystal, at same time, it ensures seeding efficiency. The MIVD method is more suitable for practical production.

KW - Crystal quality

KW - Fréchet distance

KW - Multi-frame intercomparison visual detection (MIVD)

KW - Seeding state detection

KW - Spoke pattern

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DO - 10.1016/j.measurement.2019.107186

M3 - Article

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SN - 0263-2241

VL - 151

JO - Measurement: Journal of the International Measurement Confederation

JF - Measurement: Journal of the International Measurement Confederation

M1 - 107186

ER -

The MIVD method of optimal seeding state detection using image processing technology for sapphire crystal growth via the Kyropoulos method

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Keywords

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