A study of the deviations in thickness as detected by a laser measuring instrument in a stainless steel production line

Abstract

Continuous, high precision, non-contact measuring of stainless steel flat rolling mill coils at the time of production is an important requirement in quality control. This paper describes the main features of the high precision laser instrument we have developed and installed on the annealing and finishing line of a stainless steel factory. Also presented are some of the results obtained from the studies, which prove the laser-based instruments can offer the robustness and precision required for use in the stainless steel and heavy industries.