The Design About The System Of Steel Plate Width Gauge Based On CCD

The thickness and strip shape of the hot rolled strip steel are important values toensure the quality of product, the detection of width of the steel plate have greatsignificance to improve the system’s control precision. Combination with the1500automation system of hot rolling production line of Tangshan Ganglu iron and steelcompany, this article designed a steel plate width measurement system based on CCDtechnology. The results show that, it plays an important role in the automatic width control(AWC) system, and has a certain economic benefits.Firstly, in the base of the study of advanced CCD width gauge, it analysises theprinciple of photoelectric sensors and typical CCD linear array image sensor, the sametime it designs width gauge system layout and measurement processes.it analysises thehot-rolled production line width measurement of system requirements, according to thewidth gauge performance requirements,It overall designes the new width gauge measuring program based on the highprecision and fast response of the windows interface,and selects the major components ofCCD width gauge. Then according to the measurement, it conducts the designing of theCCD drive signal source program, the signal binarization system, the counting circuitboard hardware and software.The design achieves the basic functions of CCD width gauge, and tests Performanceindicators in the laboratory for the performance. In the design of software systems,itstudys the factors that the CCD width gauge produces the measurement errors and do thecorresponding software compensation. An improved method of angle compensation ismethoded in the software filtering.