When the ccd inspection machine inspects products, several unstable factors will cause the inspection accuracy and efficiency to be greatly affected. The following editor will analyze the unstable factors in the detection of the ccd detection machine with everyone.

1. Unstable factors of ccd inspection machine: industrial camera

For ccd visual inspection equipment, the key considerations for the selection of industrial cameras are the sensor type, pixels and frame number. Among them, the controller is divided into two types: CCD and CMOS. The processing speed of CMOS optical lens is high. The distance between components and power circuits is high. Very close, the impact is serious, and the imaging noise is high. Compared with CMOS cameras, CCD controller cameras have high sensitivity, low noise and fast response time. In terms of stability, CCD cameras are also more resistant to shock and vibration. Strong. Generally speaking, CCD controller cameras are better than CCD cameras in terms of image quality and stability.

Another key element that affects the imaging quality of the camera is the wide-angle lens of the camera. In addition to the main parameters of the lens focal length, focal length, and focal length, the wide-angle lens must be selected according to the actual situation in the actual work. A key element that affects the accuracy of network detection is the image. The geometric deviation of the geometric pattern cannot be cleared, only to be filled. Although many industrial cameras now use various methods to fill the deviation caused by the wide-angle lens turbulence, in the high-precision inspection industry, the geometrical figure still affects the inspection accuracy. .

2. Unstable factors of ccd inspection machine: light source

The light source has the characteristics and shortcomings of increasing the image, reducing the confusion and the effect of the background image, which immediately affects the quality of the input data information. Because there is no universal lighting fixture, the design of the light source has always been a problem in machine vision technology. For each special application case to select the type of light source, it is also necessary to carry out weighing according to the installation of the light source in the actual natural environment and the direct irradiation method of the light source to exceed the actual effect. There are differences in the stability of different types of light sources. Common light sources include ring light, strip light, surface light, backlight, coaxial light, bowl light, etc. Therefore, the choice of light source is also an unstable factor affecting ccd visual inspection equipment.

3. Unstable factors of ccd inspection machine: machine vision software

The influence of the stability of machine vision software on machine vision technology is unquestionable. The visual recognition system will eventually use the computer to select a purposeful optimization algorithm to carry out a series of image processing such as image filtering, edge detection and edge acquisition on the electronic computer. The image processing and analysis methods and their different inspection methods and calculation methods all produce different deviations. The optimization algorithm is good or bad to determine the accuracy of the measurement. Therefore, it is necessary to choose the appropriate machine vision software to avoid The accuracy of ccd visual inspection equipment becomes lower.