On-line automated measurement methods and advantages of high precision laser thickness gauges
With the rapid development of industrial technology, enterprises have higher requirements for product quality and production efficiency, high-precision online measurement and control instruments applied to all aspects of production, not only effectively guarantee product quality, improve production efficiency, at the same time, also avoid the processing of waste phenomenon caused by quality problems. Thickness gauge as an online measurement of plate thickness of precision instruments, in the entire rolling mill thickness measurement and control system occupies a very important position. It provides real-time thickness deviation signals for the mill's control system, and the accuracy and resolution of the signals directly affect the quality of the thickness of the rolled plate, therefore, the high-precision online thickness gauge plays a very important role in the production system.
Laser measurement technology has the characteristics of high measurement accuracy, fast speed, wide range of application and simple structure, which can meet the requirements of modern industrial production, processing site on the measurement technology of high-precision, non-contact real-time online measurement. It is also now commonly used plate thickness measurement system. The measurement method not only greatly reduces the influence of thermal radiation, but also easy to install, high reliability, high practicality in industrial field measurement.
The basic structure of the laser thickness gauge equipment, mainly by the measurement platform, upper and lower laser probe, control cabinet and alarm unit and other components.
Thickness gauge measurement by the upper and lower two laser probe to complete the laser probe measured raw data transmitted to the control cabinet for processing, calculation. The control cabinet is equipped with laser probe driver, synchronous circuit, alarm control circuit and other circuit systems. The slant of the control box is equipped with a liquid crystal display, the measurement results are shown directly on the display, and the data storage function is realised, the storage time is more than 1 year. When the measurement data exceeds the set standard value, the device sends out an alarm signal.
Laser thickness gauge online automatic measurement method effectively solves the problem of plate measurement under poor working conditions, so that the system accuracy reaches a high level. Thickness gauge in a variety of insulation board, film, wood, steel, galvanised sheet, iron, aluminium and other thickness measurement has been applied to its thickness of the online detection, and will be measured data for analysis. In addition, the application of intelligent software interface not only makes the whole system function more perfect, man-machine interface is more friendly, but also, through its powerful data processing functions so that the staff can be more intuitive observation of rolled material production status, and statistical analysis, the measurement accuracy is greatly improved. The whole measurement and control system to industrial control machine as the core, with the detection system and adjusting control system for plate processing to form a closed-loop control, so that product quality is guaranteed, the automation level of production has been improved.
