Tag: incremental encoder

An incremental encoder is a rotary sensor that converts rotational displacement into a series of digital pulse signals. These pulses are used to control angular displacement, and if the encoder is combined with a gear rack or screw, it can also be used to measure linear displacement. The electrical signals generated during rotation can be processed by the following devices: CNC devices (CNC), programmable logic controllers (PLC) control systems, etc. These sensors are mainly used in machine tools, robots, motor feedback systems, and measurement and control devices.

The incremental rotary encoder converts the timing and phase relationship of the angle code disc through two photosensitive receiving tubes, and obtains the increase (positive direction) or decrease (negative direction) of the angle code disc angular displacement. The working principle of incremental rotary encoder is shown in the figure below.