Industrial cameras are a crucial component of machine vision systems, playing a vital role. Compared to ordinary cameras, industrial cameras offer significant advantages in both functionality and performance. The main differences between industrial and consumer cameras are as follows:
1. Industrial cameras boast powerful performance, stability, reliability, and ease of installation. Their compact and robust structure makes them less prone to damage, allowing for long continuous operating times and use in harsher environments—features that ordinary digital cameras cannot achieve. For example, consumer digital cameras cannot operate continuously for extended periods, lack rapid-fire shooting capabilities, and do not have mounting holes for securing them to a machine.
2. Industrial cameras can have very short shutter speeds and global exposure, enabling them to capture fast-moving objects. The shutter speed of industrial cameras can generally be adjusted from 1/100,000 of a second to 10 seconds. Combined with machine vision light sources and strobe controllers, shutter speeds can be set at the microsecond level, and global exposure effectively solves problems such as motion blur.
For example, if you attach a business card to the blades of an electric fan and spin it at maximum speed, setting the appropriate shutter speed, and then capture an image with an industrial camera, the text on the business card will still be clearly legible. It would be impossible to achieve the same effect with a regular camera.
3. Industrial cameras use progressive scan image sensors, while consumer cameras use interlaced scan image sensors. Progressive scan image sensors have a more complex manufacturing process, lower yield, and smaller shipment volume. Only a few companies in the world can provide such products, such as Dalsa and Sony, and they are expensive.
4. Industrial cameras have a much higher frame rate than ordinary cameras. Depending on their resolution, industrial cameras can capture anywhere from a few to hundreds, or even tens of thousands of images per second, while consumer cameras can only capture a few images, a significant difference. For example, a 300,000-pixel industrial camera can easily achieve 200 frames per second.
5. Industrial cameras typically output raw data, which often has a wide spectral range, making it suitable for high-quality image processing algorithms, such as machine vision applications. In contrast, images taken by ordinary cameras have a spectral range suitable only for human vision and are compressed, resulting in poor image quality and making them unsuitable for analysis and processing.
6. Industrial cameras are more expensive than ordinary cameras. This is mainly determined by market demand. The shipment volume of industrial cameras is far less than that of consumer cameras, so the higher cost is inevitable.
Industrial cameras have been widely used in many fields such as online inspection of industrial production lines, intelligent transportation, machine vision, scientific research, military science, and aerospace.
