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The encoders contain a contact-less magnetic sensor system and a precision toothed wheel. The
sensor’s magnetic field is modulated by the passing of the teeth of the measuring wheel.
The resulting sinusoidal and co-sinusoidal voltage is evaluated by the integrated electronic and
converted to an incremental output and optionally to an additional analogue current output.
Advantages of the magnetic system
- Unaffected by condensation on the measuring wheel and is therefore the preferred choice for
applications, where ambient temperatures change or where the relative humidity is high. (e.g.
outdoors)
- Unaffected by oil or dirt penetration.
- The steel measuring wheel is highly resistant to shock and vibration, unlike glass or plastic
graduated discs in other systems.
- Excellent reliability over a very long life because it does not suffer from the ageing effect
common to optical systems.
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