Industrial applications of vision sensors include inspection, metrology, measurement, orientation, helium detection, and delivery. And has been successfully used in a number of domestic and foreign production lines, not only to meet the user's existing industry needs, but also for the user to reserve a lot of features and upgrade space for users to solve problems, reduce a lot of labor costs and save huge costs.

Among the available inspection alternatives, vision sensors are the best choice due to their accuracy, ease of use, rich functionality and reasonable cost. The application of visual sensors will also help the development of enterprises and become an inevitable trend.

Most users of machine vision systems recognize that the camera is a key element of the system and often use it as a "chip" for the vision system. The camera itself is a complex system: including the lens, signal processor, communication interface, and the most central part - the device that converts photons into electrons: the image sensor. The lens and other components work together to support the camera's functionality, and the sensor ultimately determines the maximum performance of the camera.

In fact, the principle of the visual sensor is to capture thousands of pixels of light from an entire image. The clarity and sophistication of an image is usually measured in terms of resolution, expressed in number of pixels. After the image is captured, the vision sensor compares it with a reference image stored in memory for analysis. For example, if the vision sensor is set to identify a machine part with eight bolts correctly inserted, the sensor knows that only seven bolts should be rejected, or that the bolts are misaligned. In addition, the visual sensor can make a decision regardless of the position of the machine component in the field of view, whether or not the component rotates within 360 degrees.

At present, industrial sensors are the first step in achieving industrial automatic detection and automatic control. In modern industrial production, especially in the automated production process, various sensors are used to monitor and control various parameters in the production process so that the equipment can work in a normal state or an optimal state, and the product can achieve the best quality. It can be said that Without many high quality and inexpensive industrial sensors, there is no modern industrial production system. The fastest growing area of ​​industrial sensors is the visual sensor.

For the uncertainty of the position of the test object, and the detection of complex features, it is necessary to use a visual sensor. At the production site, outflows can be avoided by using visual sensors to detect parts. The visual sensor is mainly composed of a camera for capturing an object to be inspected (shooting) and a controller for processing the image. The camera captures image information, detects the number, positional relationship, shape, etc. of the shooting object, and is used to judge whether the product is qualified or transmits inspection data to robots and other production equipment. For example, thousands of parts can be inspected every minute in checking electrode smears of minute electronic components used in televisions or mobile phones. It can also be used to detect scratches, smudges, and printing effects on the operating part of the mobile phone.

Vision sensors can examine much larger areas and achieve better target position and orientation flexibility. This makes the visual sensor widely welcomed in some applications that rely only on photoelectric sensors.