Rotary encoders

The QR series of rotary encoders from DIS Sensors enable contact-free measurement of angular displacement from 0° to 360° without a mechanical stop.

Absolute rotary encoder

The QR30 series is available as absolute or incremental rotary encoders. An absolute rotary encoder contains an analog output that is linear with the angle of rotation, up to 360°. After switching on the power the sensor knows directly in which position it is located. 

Incremental rotary encoder

An incremental encoder is especially suitable for the rotational velocity of a shaft. The output of the sensor consists of pulses (A and B). The number of pulses per revolution can be between 32 and 1024. On the basis of the phase shift between the A and B signal can be determined if the shaft rotates clockwise or counterclockwise.


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Rotary switch - DIS Sensors
Rotary encoder GR 40 - DIS Sensors

QR30 and QR30N rotary switches

With the QR30 series of angular displacement meters, the sensor and magnet are mounted separately from each other. The customer can mount the supplied magnet on his rotating axis (on-axis). The maximum distance of 3 mm between the magnet and the sensor provides sufficient room for mechanical tolerances under extreme conditions. Various outputs with a 10 or 12-bit resolution are available for a wide range of applications. With the QR30 series angular displacement meters, the rear of the sensor is sensitive, while with the QR30N this is the nose of the sensor.

QR40 rotary encoder

With the QR40 series, the magnet is integrated on the rotating shaft inside the housing. The standard axle is available in D-shape. The QR40 angular displacement meter also has a zero input, which makes zero adjustment possible after installation, so that a non-critical assembly procedure is guaranteed


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Application of rotary encoder

Angle of rotation meters are used for many applications in various industries. General: replacement of potentiometers, (expensive) optical encoders and rotary switches Industrial: agricultural and excavators, (mobile) waste presses, valve control, robot systems, position determination Automotive: electronic steering systems, gas/brake pedal position sensor, headlight height acceleration.

Features rotary encoders:

  • Unique universal plastic housing concept, known as QUADRO®. (IP66 or IP67)
  • Standard shaft variant and non-contact shaft rotary encoder
  • Compact size
  • Without mechanical stop
  • 32 to 1024 pulses