Analysis of Thickness Measure Precision in X-ray Profile Gauge

Instantaneous profile gauge technology has been widely used in metallurgy industry because it can on-line get the profile of steel strip. It has characters of high measure precision and wide measure range. The factors of thickness measure precision were analyzed and the system noise was simulated. Based on the analysis the system measure precision was estimated and validated in an experiment profile gauge system. The theory results fit experiment data very well.