Thickness gauge type one: laser thickness gauge. The principle used by this instrument is the reflection of laser light. According to the introduction of some technicians, this principle is very closely related to the principle of light reflection. In optical principles, it is related to the qualitative analysis of microscopic geometry. . It is a non-contact dynamic measurement instrument. It can directly output digital signals, can also be connected to a computer, can quickly process data, and can also output deviation values to various industrial equipment.

Type 2 thickness gauge: X-ray thickness gauge. This type of thickness gauge uses X-rays to penetrate the object being measured. The intensity change of X-rays and the thickness of the material show certain characteristics. The main applications of this thickness gauge in industry mainly include plate and strip processing of non-ferrous metals, as well as plate and strip processing in the metallurgical industry. This thickness gauge is a non-contact dynamic measuring instrument. The controller it uses is PLC and industrial computer as the core.