CAM Sensor Axial Type 3 – MEV Elektronik GmbH
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CAM Sensor Axial Type 3

Axial Sensor Type 3.2: 78mm

A resonant inductive position sensor for measuring linear position over a range of 78mm. The sensor works with targets having an axis of symmetry running along the measuring axis, which means they can rotate freely (“Axial Sensor”).

A large gap is possible between sensor and target. This allows each of the parts to be located inside its own separate housing, with each part separately encapsulated where needed.

The sensor works with CambridgeIC’s Central CAM312 Tracking Unit (CTU) chip with Type 3 circuitry. This performs measurements and provides high-quality position data to a host device. The sensor includes four coils. Two are used to excite he resonator inside the target. All four are then used to detect signals coming back from the resonator, for processing by the CAM312 IC.


  • Full absolute linear sensing
  • 78mm Measuring Length
  • 8-layer PCB process
  • Works with a wide range of target designs
  • 5 wire connection possible


  • Linearity Error [lt]±0.2%
  • Noise Free Resolution [gt] 10 bits
  • Gap up to 10mm


  • Valve position sensing
  • Actuator position feedback
  • Liquid level sensing by detecting float height
  • Electronic reading of variable area flow meters
  • Syringe fill level sensing

Technical Data

Sensor PCBs:

Part number Description
013-0057 78mm Axial Sensor Assembly


Part number Description
013-6001 300mm 6-way Sensor Connecting Cable
013-1033 L20 Red Target Sample
010-0145 Sensor Blueprint


78mm Axial Sensor Type 3.2 datasheet (PDF)

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