The thickness of the steel plate can be checked for uniformity by means of a laser thickness gauge.
Steel plate is divided by thickness, thin steel plate "4 mm (up to 0.2 mm), medium-thick steel plate 4~60 mm, extra-thick steel plate 60~115 mm. The width of the thin plate is 500~1500 mm; the width of the thick one is 600~3000 mm. The thickness of the steel plate to ensure uniformity, and therefore the need to detect its points very much, in order to ensure that the size of each part of the standard, manual testing is time-consuming and laborious, and more difficult to measure the wider steel plate, and therefore the need for a real-time detection of the thickness of the implementation of a real-time detection of the thickness of the instrument, looking at a variety of measuring instruments, I think that the laser thickness gauge for its measurement is very effective.
Laser thickness gauge relative to the ultrasonic thickness gauge higher accuracy, relative to the ray thickness gauge without radiation pollution. Steel plate thickness gauge as a non-contact thickness measurement instruments, has been popular. Because of its non-contact measurement, accurate readings, convenient measurement, especially in the object positioning and thickness measurement is very wide range of applications.
But ordinary online thickness gauge has a shortcoming, is in the measurement of high-temperature objects, due to high-temperature object surface heat radiation, especially in the ultra-high-temperature objects, such as billet surface of more than 1000 degrees Celsius, often inaccurate readings or delayed response problems. High-temperature online thickness gauge is for this problem, using new design concepts, as far as possible to avoid the influence of thermal radiation, so as to achieve accurate measurement of high-temperature objects. Therefore, it can also be applied to the online inspection of hot rolled steel plate.
Laser thickness gauge is widely used, and we are more concerned about the uniformity of the thickness, online thickness gauge series products, the use of self-developed computing circuits host computer and acquisition platform, and supporting high-precision laser displacement sensor and a variety of ultra-high-precision imports of laser displacement sensors, and for high temperature, high humidity, vibration, jitter, electromagnetism and other harsh environments have been specially designed. Measurement accuracy can reach 0.5μm, measurement frequency 1K-10k Hz, can measure high temperature objects greater than 2000 ℃.
The laser thickness gauge has a high measuring frequency, fast measuring speed, and a large number of detection points, which naturally ensures the uniformity of the thickness of the steel plate, and at the same time, there are two methods for the wider width of the plate to choose from, one is multi-point measurement, installing a number of sets of laser probes, which can detect the required detection position, and the other is scanning detection, which is installed in the probe on the bracket that can be moved horizontally, and moves with the bracket, so that it can carry out Coverage scanning measurement, its measurement route into a Z-shaped.
Laser thickness gauge applied to the thickness of the steel plate detection, absolutely can guarantee the uniformity of the thickness of the steel plate, it can detect hundreds and thousands of data per second, online detection, real-time alarm, so that staff can accurately grasp the thickness of the size.
