The film forming control system of the pvd coating machine can be roughly guessed by its name. It should be the coating system that monitors and controls the coating process during the coating process. This way, the coating engineer can ensure that the entire coating process can be completed smoothly.

There are currently many application methods for film monitoring in pvd coating machines, including visual monitoring, constant (extreme) value monitoring, crystal oscillation monitoring, time monitoring, and so on. I mainly introduce three types of monitoring: visual monitoring, fixed (extreme) monitoring, and crystal oscillation monitoring.

Visual monitoring, also known as direct monitoring, uses eye monitoring because during the growth process of thin films, there may be color changes due to interference phenomena. We control the thickness of the film based on color changes, which may have certain errors, so it is not very accurate and needs to rely on experience.

The electrical control part mainly adopts PLC automatic control, which is to input pre designed programs into the PLC first. The main circuit of the processor is connected to various idle systems on the operation panel. When the switch on the operation panel is pressed, the information is transmitted to the central processor, and then the central control system analyzes and issues instructions for the branch to execute and complete the action.

Coating machine is a multi discipline equipment, which integrates the most advanced electromechanical technology, control technology, electrical automation, IT technology, refrigeration technology, microcircuit integration system, high-voltage control system, mechanical technology, processing technology, photoelectric technology, optical technology, pneumatic control technology, photoelectric sensing technology, communication technology, vacuum technology, Thin-film optics and coating technology, etc.

It can be said that the coating machine is a representative of the emerging industry.

Today, pvd coating machine has been widely used, especially for coating films. Various films produced by pvd coating machine have been used in various photoelectric systems and Optical instrument, such as digital cameras, digital cameras, telescopes, projectors, energy control, Optical communication, display technology, intervention devices, satellite missiles, semiconductor lasers, MEMS, information industry, laser production, various filters, lighting industry, sensors Architectural glass, automotive industry, decorations, coins, eyeglasses, etc., coating machines have been closely linked to human life.