OnAxis Magnetic Rotary Encoders

Compact OnAxis magnetic rotary encoders provide motor positioning and speed control.

Onaxis Motor Encoder 10252250
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OnAxis magnetic encoders bring high performance, robust armored construction, simple mounting system, small size and low purchase price to demanding motor control, shaft position and velocity measurement applications for OEM manufacturers. 

  • Delivers IP68 sealing, extreme temperature range (-40°C to 125°C), and resistance to shock, vibration, G forces and pressures
  • Non-contact, frictionless, zero-wear operation 
  • Easily integrates on electric motors and other shaft-drive devices
  • ASIC/metal case mounts to motor backs, fits into a cast or machined hole, or fastens down with two screws
  • Actuator magnets mount onto or inset into the shaft with no adjustment needed after mounting
  • Available in analog, incremental and absolute formats
  • Provides resolutions up to 13 bit (8192 counts per revolution), speeds to over 30,000 rpm, measurement accuracies to 0.5 degrees, and 5V or 24V power supply
  • Delivers high EMC immunity
  • RoHS compliant
  • Versions available for immersion applications (pumps, gearboxes, etc.)
  • ASIC detects change in magnetic flux as magnet rotates above it
  • Converts sine and cosine voltage outputs to absolute angle position via a fast flash interpolator
  • Absolute angle position value output through parallel binary interface or serial SSI interface
  • Relative changes of angle position are output through A QUAD B encoder signals.
  • ASIC cancels magnetic interference, enabling operation in areas of high external magnetic fields 


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