Six technical parameters of industrial cameras

Industrial cameras refer to camera equipment that can be used stably and efficiently in industrial sites. They have the requirements to adapt to complex industrial environments and can work stably for a long time. And it is also a video image acquisition device used in industrial sites, which can directly store images on the hard disk. Compared with ordinary cameras, industrial cameras are comparable in resolution, frame rate, light requirements, exposure methods, etc. The main component is a CCD photosensitive chip. Let’s take a look at the six technical parameters of industrial cameras:

Industrial camera

1. Resolution: The number of pixels (Pixels) of each image collected by the camera. For digital industrial cameras, it generally corresponds directly to the number of pixels of the photoelectric sensor. For analog cameras, it depends on the video format. The PAL system is 768*576 and the NTSC system is 640*480.
2. Pixel Depth: That is, the number of bits per pixel of data, generally 8Bit is commonly used, and for digital industrial cameras there are generally 10Bit, 12Bit, etc.
3. Maximum Frame Rate/Line Rate: The rate at which a camera collects and transmits images is generally the number of frames collected per second (Frames/Sec.) for an area array camera, and the number of lines collected per second (Hz) for a line array camera.
4. Pixel Size: The pixel size and the number of pixels (resolution) jointly determine the size of the camera target surface. At present, the pixel size of digital industrial cameras is generally 3μm-10μm. Generally, the smaller the pixel size, the more difficult it is to manufacture and the harder it is to improve the image quality.
5. Exposure and Shutter speed: For line array cameras, all are line-by-line exposure methods. You can choose a fixed line frequency and external trigger synchronization acquisition method. The exposure time can be consistent with the line period, or you can set a fixed time; area array industrial cameras have several common methods such as frame exposure, field exposure, and rolling line exposure. Digital industrial cameras generally provide the function of external trigger acquisition. The shutter speed can generally reach 10 microseconds, and high-speed industrial cameras can be even faster.
6. Spectral response characteristics (Spectral Range): It refers to the sensitivity characteristics of the pixel sensor to different light waves. The general response range is 350nm-1000nm. Some cameras add a filter in front of the target to filter out infrared light. If the system needs to be sensitive to infrared light, the filter can be removed.