Working principle of AOI automatic optical detector_ AOI technical parameters

Among SMT manufacturers, many production lines use AOI testing equipment. AOI automatic optical inspection, also known as automatic optical detector, relies on the light to irradiate the target, the camera takes pictures, and then completes the printed circuit board inspection through a series of algorithm comparison, and outputs the results. The machine decomposes the soldering tin and components into different colors through the internal lighting unit.

When making the inspection procedure, first take a standard board and set appropriate color parameters for different parts of each component above. During inspection, the machine takes the captured image of the standard board as the standard image, and the set color parameters as the standard. Compare the image of the inspected substrate with the standard image, and judge based on the set color parameters.

The core technology of AOI optical detector equipment is: light, diagnostic software and luminous hardware. The three core things of AOI equipment are: light source, camera, software and algorithm.

The camera is the eye of the AOI detection equipment, the light source is the soul of the AOI detection equipment, and the algorithm is the mind, thinking and logic ability of the AOI detection equipment. Multi level, multi angle, uniform light, stable light source, no decay, long service life.