To produce flawless glass containers, continuous monitoring of the glass gob is required. It is essential to ensure production of molten glass gobs with the right shape, temperature, viscosity and weight. At present, manual monitoring is common practice in the glass container industry, which heavily depends on previous experience, operator knowledge and trial and error. This results in inconsistent measurements and consequently loss of production. In this article, a multi-camera based setup is used as a non-invasive real-time monitoring system. We have shown that under certain conditions, such as keeping the glass composition constant, it is possible to do in-line measurement of viscosity using sensor fusion to correlate the rate of geometrical change in the gob and its temperature. The correlation models presented in this article show that there is a strong correlation, i.e., 0.65, between our measurements and the projected viscosity.
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http://dx.doi.org/10.3390/s22020661 | DOI Listing |
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Faculty of Engineering, Kyushu University, Fukuoka 819-0395, Japan.
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Lightweight Optics and Advanced Materials Technology Center, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China.
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Department of Foundry Engineering, Dankook University, Yongin 16890, Republic of Korea.
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Interfaces, Confinement, Matériaux et Nanostructures, 45071 Orléans Cedex 2, France.
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