New optical true-ground-speed sensor ­OptoSpeed

Product Overview

Measurement of low true ground speed


OptoSpeed is a new optical movement detector for contactless measurement of low speed and distance travelled. Speed range is from 0.01 up to 20 km/h. Applications are manifold e.g. industrial indoor on fork lifts, driverless transportation vehicles/machines/AGVs.

OptoSpeed provides for the speed signal in XY direction, meaning in mounting direction forward and perpendicular sideways movement.

OptoSpeed data sheet & manual

Datasheet for OptoSpeed here and further details on request.

Manual OptoSpeed


Scope of applications


  • A new solution for contactless true ground speed measurement and movement detection at low speed from 0.01 up to 20 km/h.
  • Precise noncontact measurement of true speed over ground in X and Y direction.
  • Independent on traction (wheel, tire, track) slip & slide, effective tire circumference and sinking in of tires/trackes.
  • High dynamics and data rate for monitoring, control and closed loop control industrial automation applications.
  • Simple mounting in parallel to the surface being measured.
  • Linear correlation between mounting height to the surface and speed output.
  • True speed over ground for slip, slide and traction closed-loop control applications.
  • True speed over ground for effective breaking improvement.

Technical Data

Technical data

Power supply +9 VDC up to +28 VDC
Current supply < < 200 mA

Storage: -40°C up to +85°C

Operation: -20°C up to +70°C

Optical aperture angle 12°
Output Signals Quadrature Encoder XY Signals @ 5,000 pulses/m, also differential and serial RS232 data stream
Update Rate of output signal 10 Hz
Speed Range From 0.01 up to 20 km/h at 100 mm distance to surface

Sensor Configuration

Optical motion tracking System with LED lighting
System Accuracy 0,1 % F.R.
Dimensions Diameter min. 60 mm, max. 73.5 mm with mounting straps less cable, 22.5 mm heigh
Connections Cable with molded DIN M12 Connector, 12 Pin
Installation Mounting in parallel to the surface with free view onto the detection area. Distance between 50 up to 400 mm
Warranty 2 Years
Environmental Protection IP6KX, IPX7, IPX8 acc. to ISO 20653