Fengmingliang Rolling Copper Strip Online Thickness Measurement

Introduction to Fengmingliang Rolling Copper Strip Online Thickness Measurement:

Fengmingliang's rolled copper plate and strip online thickness measurement is used for non-contact online continuous measurement and precise control of plate and strip thickness in cold rolling and hot rolling production lines such as foil rolling, cold rolling, leveling, acid washing, stretch bending correction, and scissors in the metallurgical industry. It has the characteristics of non penetrability. The thickness detection of hot-rolled strip steel requires non-contact methods, and commonly used methods include isotope detection, X-ray detection, photoelectric detection, etc. Isotope detection and X-ray detection apply the principle of penetration detection, and determine the thickness of the steel plate based on the attenuation of the radiation passing through the steel plate. The photoelectric method relies on the reflection of laser from the steel plate to determine the thickness of the steel plate according to the different reflection positions.

Each of these detection methods has its own advantages and disadvantages. Isotope detection requires high safety protection due to the use of isotopes as radiation sources. Due to the controllability, improved safety, and mature technology of X-ray testing, the equipment cost is high.

Function and Features:

Real time online detection of strip thickness, which can automatically compensate for steel plate jumping, tilting, lateral displacement, and heat shrinkage;

Real time thickness curve drawing and historical thickness storage;

◆ Sound and light alarm, online display of Chinese characters on a large screen; The human-machine interface is user-friendly and easy to operate and maintain;

◆ Adopting industrial grade high-speed infrared array CCD photoelectric sensor and our specially developed high-speed FPGA acquisition pattern recognition circuit;

Measurement range: 0 mm ≤ thickness ≤ 6mm; 0 mm ≤ width ≤ 680mm;

The special vibration compensation technology greatly improves the stability of the system; Online continuous measurement with high accuracy and fast detection speed;

◆ Ultra sensitive 5000 pixel infrared image sensor, industrial grade low aberration lens;

Real time and historical data display and storage of strip steel, connected to automatically generate reports and print them;

◆ Good safety performance; Fast response, unaffected by the material of the target being tested;

The developed online, dynamic, non-contact, high-precision laser thickness gauge is based on fully drawing on the characteristics of similar foreign equipment and avoiding the defects of foreign thickness gauges. It is developed to meet the needs of cold rolling, hot rolling, and strip thickness detection by adopting independent laser detection technology and reliable protective measures in response to the harsh environmental conditions of domestic cold rolling and hot rolling sites.

Using the principle of triangulation, the modulated laser emitted by the laser hits the upper and lower surfaces of the measured object to form two light spots. These two light spots are imaged onto a surface array CCD through an optical path, and the light spot signal is sampled and processed to obtain the continuous dynamic thickness value of the strip steel. The system adopts industrial grade CCD optoelectronic devices and our specially developed acquisition and model recognition circuits. It adopts non-uniform linear correction technology, fixed image linear noise correction technology, electronic exposure technology, correlated double sampling technology, double exposure technology, and intelligent model learning technology, innovatively improving the overall accuracy and reliability of the equipment.