Amt102 incremental encoder how it works

Incremental encoder

Google search on

Perpetual calendar

Kübler incremental encoder

Incremental encoders are also used as rotary encoders, pulse encoders, encoders, angle encoders and the like. named. Basically, it is a sensor that generates a series of pulses during a movement. When evaluating these impulses, various variables such as speed, feed length, angle setting or acceleration can be determined. An incremental encoder can be used both as a measuring (length measurement) or monitoring instrument (speed monitoring) and as a control device (manual settings, positioning).

Incremental encoder Baumer

Depending on the type, an incremental encoder can generate one or more signals. For example, a movement can be detected with just one signal, but not the direction. The direction of rotation can also be determined with two signals, A and B. Signals A and B can also be monitored with inverted signals / A and / B. Many encoders also provide a third signal as a reference signal. In the case of special and precision encoders, there are additional signals. The number of pulses per revolution is the most important variable of a pulse generator: the resolution.

Coded rotary switch (rotary encoder) with a push button switch

In the case of incremental encoders with two tracks, A and B, the respective pulses are generated offset from one another by 90 °. This results in the possibility of not only counting the pulses but also determining the direction of rotation. Track A can be viewed as a clock signal and track B as a directional signal. If the shaft of the rotary encoder moves clockwise (clockwise rotation), signal A is generated before signal B. If the rotary encoder moves counter-clockwise (left-hand rotation), signal B is generated before signal A. The pulses must then be evaluated by an evaluation device (e.g. a microcontroller).

A / B signal shift

Incremental encoder Omron (absolute encoder)

Incremental encoder

Google search on