Design and Implementation of High Precision Online Thickness Gauge by Laser Displacement Sensor
Steel rolling occupies a very important position in the iron and steel industry. The thickness of the steel plate is a crucial index of the quality, so the automatic detection system for high-precision thickness of the steel industry has a vital significance. The traditional thickness instruments have X-ray thickness gauge and ultrasonic thickness meter while the X-ray thickness gauge has radiation which is harmful to human body and ultrasonic thickness has a lower precision. For these shortcomings, a high precision thickness gauge by laser sensor was designed. Presented the differential measurement method based on laser displacement sensor. Then using TMS320F2812 as main control chip designed the hardware of the system. Finally, software programming was completed based on the hardware design. By experiment research, the results show that the laser thickness gauge has advantages of high precision and high reliability. It has a high practical value.
Prasad Yarlagadda and Yun-Hae Kim
P. He et al., "Design and Implementation of High Precision Online Thickness Gauge by Laser Displacement Sensor", Applied Mechanics and Materials, Vols. 568-570, pp. 331-335, 2014