What Are The Characteristics Of Photoelectric Sensors That Are Widely Used?

Photoelectric sensors are widely used and developed rapidly, mainly because they have the following characteristics:

1. Long detection distance. If the detection distance of 10 m or more is retained in the through-beam type, detection that cannot be realized by other detection means (magnetic, ultrasonic, etc.) can be realized.

2. There are fewer restrictions on detecting objects. Since the shading and reflection caused by the detection object are the detection principle, the detection object is not limited to the metal material like the proximity sensor, and the photoelectric sensor can detect almost all objects such as glass, plastic, wood, liquid, and the like.

3. The response time is short. The light itself is high speed, and the sensor circuit is composed of electronic parts, so it does not contain mechanical working time and the response time is very short. Easy to adjust. In the type of visible light, the light beam is visible to the eye, and the photoelectric correction system can adjust the position of the detected object.

4. High resolution. High resolution can be achieved by concentrating the beam of light at small spots by advanced design techniques or by forming a special light-receiving optics. Small object detection and high-precision position detection are also possible.

5, can achieve non-contact detection. The detection can be performed without mechanical contact with the detection object, so that damage to the detection object and the sensor is not caused. Therefore, the sensor can be used for a long time.

6, can achieve color discrimination. Photoelectric corrector manufacturers believe that the reflectance and absorptivity of light formed by detecting an object differ depending on the wavelength of the light to be emitted and the color combination of the detected object. With this property, the color of the detected object can be detected.