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Optimizing Strip Speed Measurement for AGC/Mass Flow and Elongation Control

Leading manufacturers are constantly seeking out ways to increase yield, improve quality and reduce operating costs. Automatic gauge control using mass flow and elongation control has become a standard controls technique used in cold rolling to achieve these goals. Within these techniques, laser velocimeters are well known for improving control by offering a more accurate strip speed measurement as compared to contact methods, especially during acceleration/deceleration transition events in mill speed. This paper discusses differences between the two measurement techniques, as well as best practices for configuring, installing, integrating and optimizing a laser velocimeter measurement signal.

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© 2019 by AIST. Distributed by Polytec with permission of AIST. All other distribution is strictly prohibited.
This article was published in Iron & Steel Technology, February 2019.