Rotary Encoders


Optical and magnetic systems for positioning and measurement


Our product portfolio includes an extensive range of encoders. On this page we present a selection of our optical encoders and electronic handweels. If you cannot find the product you are looking for, please do not hesitate to contact us. We have a suitable product for almost every application.

Contact us!

Optical Encoders

The mode of operation of optoelectronic incremental encoders can be traced back to the principle of the light barrier. A disc made of metal, glass or special plastic with a grating forms the diaphragm, which is rotatably mounted in the beam path of a light source (LED). An optical system receives the light pulses generated by the rotation of the disc and converts them into electrical signals. In order to determine the direction of the rotation, the scanning is always carried out by means of two photodetectors offset by 90°. Two quasi-sinusoidal signals with a phase shift of p/2 are applied to their output. These signals can be evaluated directly with some types. With the majority of encoders, however, there is still an internal pulse shaping into square-wave signals. By means of simple logical operations, it is possible to obtain the information about the direction of rotation contained in this so-called quadrature signal (90° phase shift). By evaluating the signal edges of both channels, it is also possible to double or quadruple the number of pulses without loss of information.

SPEH
  • Flat design
  • Reasonably priced
  • Kit encoder
  • Up to 360 pulses
Datasheet
SPE
  • Compact design
  • Simple installation
  • Snap-in connector
  • Up to 360 pulses
Datasheet
MOM18
  • Space-saving
  • Up to 1600 pulses
  • OC or LD output
  • 2 channels and index
Datasheet
MOL40
  • Up to 3600 pulses
  • Versatilely applicable
  • Coupling included
  • Long lifetime
Datasheet
MHL40
  • Up to 3600 pulses
  • Wide range of applications
  • Through bore optional
  • 2 channels and index
Datasheet
M101
  • Up to 128 pulses
  • Compact design
  • For simple applications
  • 2 channels without index
Datasheet
MOT5
  • Extremely compact
  • Easy connection
  • Up to 100 pulses/rev.
  • 2 channels and index
Datasheet
MOT6
  • Very compact
  • Easy connection
  • 1024 pulses/rev.
  • Long lifetime
Datasheet
MOT7
  • For medical applications
  • Up to 400 pulses
  • OC output
  • 2 channels and index
Datasheet
MOT13
  • For robotic applications
  • Up to 16000 pulses
  • TTL, OC, or LD output
  • 2 channels and index
Datasheet
ETAM25
  • With analogue interface
  • Increased torque
  • Mechanical stop
  • High quality
Datasheet
World Encoders

Electronic Handwheels

Rotary encoders are used for manual setpoint setting and serve as a human-machine interface. The setpoint value is specified by selecting the angle of rotation. Rotary encoders are available with or without pushbutton and with or without detent. They optionally have a button for acknowledging the setpoint value and a detent as haptic and audible (click) feedback. The intensity of the detent torque can also be selected. In addition, the push-buttons differ in their characteristics with regard to the duty cycle for keystroke travel and keying torque. In principle, it is possible to adapt the aforementioned properties to the respective customer requirements. Numerous electrical connection options round off the portfolio of our rotary encoders. 

MHU
  • Small installation depth
  • Outer diameter 60mm
  • High grade click mechanism
  • Long lifetime
Datasheet
MRX50
  • 50 pulses per revolution
  • Smooth detent
  • With or without switch
  • Compact design
Datasheet
MRS
  • 16, 24 or 32 detents
  • With or wihtout push switch
  • For high environmental requirements
  • Compact design
Datasheet
MRB25
  • 25 pulses per revolution
  • With or without push switch
  • Short keystroke
  • Low power consumption
Datasheet
Customized versions on request