Five advantages of industrial CCD visual inspection

   With the development of technology, industrial CCD visual inspection has become a comprehensive technology integrating optics, electronics, precision machinery and computer skills. It can be seen in science and technology industries such as industry, machine inspection and aerospace. CCD visual inspection has gradually become an indispensable part of production. Let’s take a look at the five major advantages of CCD visual inspection: 

1. High quantum power

CCD visual inspection has high quantum power, which can be said to be its greatest advantage compared to other inspection technologies. Generally speaking, its quantum power can reach 30%-50%, and even the highest can reach 90%. , compared with usual photographic film, this is about 100 times.

2. Very good linearity

The imaging intensity of CCD visual inspection is proportional to the incident flow rate and has a good linear relationship.

3. Wide spectral response range

Compared with the sensitive band range of ordinary photographic emulsions, the spectral response range of CCD is 400-1000nm, which extends much further to the near-infrared band than the ordinary band.

4. Wide dynamic range

The CCD dynamic scale refers to the magnitude difference between the darkest stars and the brightest stars that can be explored. The dynamic range of CCD is far better than that of film, and the maximum value can reach 105.

5. High resolution ability

The pixel standard is inversely proportional to its resolution. It can be seen that the higher the resolution, the smaller the pixel. The pixel standard of CCD is 9-25μm, which is equivalent to the resolution of fine-grained film.