Metrological problems of melting level and crystal geometry measurement during crystal growing

Sergei Vasilievich Mikhlyaev; E. S. Nejevenko

doi:10.1117/12.484614

29 July 2002 Metrological problems of melting level and crystal geometry measurement during crystal growing

Sergei Vasilievich Mikhlyaev, E. S. Nejevenko

Proceedings Volume 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life; (2002) https://doi.org/10.1117/12.484614
Event: Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, 2002, Novosibirsk, Russian Federation

Abstract

A description of machine sight system developed at IA&E of the Siberian Branch of RAS intended for the control of crystals cultivation process is given. The work of the system is based on digital processing of optical signals (images) registered by digital video cameras with linear photoreceivers. The algorithms of processing are developed which secure receipt of the melting level estimations, diameter of a crystal, width of the zone of meniscus. The metrological characteristics of system are given; the results of its testing and perspective variants of realization are analyzed.

Citation Download Citation

Sergei Vasilievich Mikhlyaev and E. S. Nejevenko "Metrological problems of melting level and crystal geometry measurement during crystal growing", Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); https://doi.org/10.1117/12.484614

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