Photoelectric Switches

Types of Photoelectric Switches

There are three main types of Photoelectric Switches: through-beam, retroreflective, and diffuse. Each sensor has its own strengths and can be used in a variety of ways.

1. Through-beam

In through-beam sensing, also known as counter mode, two separate devices are used to create or destroy a beam. One sensor houses the light emitter while the other houses the light receiver. The through-beam sensor detects an object when an object interrupts the light beam between the two sensors.

2. Retroreflective

In retroreflective, both the light source and the receiving device are found in the same housing. The sensor works in tandem with the reflector. The light emitted from the sensor is directed to a reflector, which is then sent back to the light receiving element. The sensor detects the presence of an object when the light path is disturbed.

3. Diffused

In optical distance sensing, also known as diffuse, the light source and receiver are placed in the same device. The scattered sensor detects an object when the light beam, which is emitted towards the target, is reflected back to the sensor by the target. What makes diffused sensors such a great automation option is that they are more compact than regular units, as all the components are in one housing.

To get various types of Photoelectric Switches that match what you want, you can get them directly through suppliers, distributors and all sellers in Indotrading at the lowest price with the best quality.