Design and Implementation of High Precision Online Thickness Gauge by Laser Displacement Sensor


Article Preview

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.



Edited by:

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

Online since:

June 2014




* - Corresponding Author

[1] CF Zhang: The Operation and Development of Chinese Iron and Steel Industry, volume 4 of China Steel, (2012), pp.8-11.

[2] JF Wu: The Principle and Application of Laser Thickness Gauge, volume 34 of WISCO TECHNOLOGY, (1996), pp.47-50.

[3] WB Zhu: Laser Displacement Sensor in Measuring the Surface Shape of the Object, volume 27 of OME Information, (2006), pp.70-72.

[4] DG Ran and FM Zhang: Dynamic Error Analysis and Filtering Network Design of Differential Measuring Instrument, volume 19 of Metrology & Measurement Technology, (1999), pp.22-25.

[5] HL Peng and YH Zhang: High Precision AD converter AD976 / AD976A and Its Application, Electronics World, (2003), pp.46-47.

[6] SM Wan: The Principle and Examples of Application about TMS320F281xDSP (Beihang University Press, Beijing 2007).

[7] Y Zhao: Arithmetic Mean Method and Weighting Mean Method of Digital Filter, Instrumentation Technology, (2001), pp.41-44.

In order to see related information, you need to Login.