1973 Volume 59 Issue 5 Pages 613-622
Problems of on-line width and diameter gauges are their accuracy and reliability, due to the severe environments of steel plants.
Three types of instruments reported here are based on the principles similar to those of the currently avairable instruments.
By the use of new photo-electronic devices and a digital technique the accuracy and reliability have been improved, and reliable on-line measurements have been accomplished.
In this paper, the performances of the cold slab width, cold strip width, and hot bar diameter gauges are presented.