A Microprocessor-Based Gauge Controller for Metals Rolling Applications

The metals rolling industry has for many years benefited from the use of automatic thickness controllers to produce a more uniform and salable product. Yet non-computer-based controllers have normally required operator adjustment in order to produce the best possible results over the full range of metal thickness, width, alloy and temper. A controller is described which incorporates a microprocessor to reduce the necessity of operator intervention, increase overall capability and provide for easy expansion or improvement of control in the future. The microprocessor not only performs all computations required for control but modifies its operation based on information supplied to it by a companion thickness measurement system.