The photoelectric encoder module is designed to detect rotational speed and direction using an optical sensing method. It consists of two discs positioned crosswise, where one disc contains a light source and the other contains two photoresistors that receive the light. Between them is a rotating disc with uniformly spaced slits, allowing precise detection of motion. As the slotted disc rotates, the light is alternately blocked and passed to the photoresistors, producing square wave signals. By counting these pulses, rotational speed can be calculated. A 90-degree phase difference between output channels A and B enables accurate detection of rotation direction by identifying which signal leads the other.
Package Includes
- 1 x Photoelectric Encoder Module
