contrast sensor- to detect the difference between two colors
Contrast is the difference in opposites, such as black and white. In photoelectric sensors, contrast is the difference in brightness between two objects or in multiple colors on an object. As a result, the larger the difference, the higher the contrast.
A contrast sensor is a high-efficiency photoelectric sensor that detects the difference between two colors. These colors are usually used in symbols and backgrounds.
Contrast sensors feature either switching or analog output. The sensor with switching output evaluates the detection process, brightness, or light level from the sample presented to the sensor. For each new sample presented, the sensor compares the value of the new sample with the trained one to determine whether it is more similar to the signal or the background. On the other hand, Sensors with analog output provide the measured brightness as a proportional voltage signal to monitor brightness curves.
Most contrast sensors use a color-changing LED that detects minimal contrasts for better performance. The color of the emitted light is automatically selected based on the sensor conditions. Industrial applications include packaging, beverage and bottling, paper and printing machinery, and ceramics printing.
Here we offer you different kinds of contrast sensors from Sensopart, a well-known brand for photoelectric sensors. You may be interested in the contrast sensor price or may even have technical questions. Either way, contact us. Our technical experts are ready to help: +9714337738