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Dial Reading

Resonant inductive sensing is well suited to measuring the angle of dials.  They can form part of a user interface, to deliver precise inputs to electronics. Or they may be part of a machine, for example the register wheels of a mechanical meter.


There is no contact between sensor and targets.  This means that the dials and readers may be housed in separate modules.  So, for example, a fixed reader can read multiple sets of dials as they move round a production process, and each set of dials can be read by multiple readers at different points in the process.

  • Rotary sensors read dial angles
  • Large gaps possible (11mm with 50mm rotary sensor)
  • Tolerant to radial misalignment (2mm with 50mm rotary sensor)
  • Up to 24 settings per dial for a robust system
  • A single CAM204 chip supports up to 4 dials (or 16 with external mux components)
  • Immune to dirt and moisture
  • Simple and robust
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