Linear encoder technology: magnetic encoders,！

Magnetic encoders use a magnetic reader head and a magnetic scale to determine position. Unlike optical encoders, magnetic encoders are mostly unaffected by dirt, debris, or liquid contamination. Shocks and vibrations are also less likely to affect magnetic encoders. They are, however, sensitive to magnetic chips, such as steel or iron, as they may interfere with the magnetic field.

While linear encoders are often an add-on component to a system, in many cases their benefits outweigh the additional labor and cost. For example, in ball screw driven applications, a lower accuracy screw can be chosen if a linear encoder is used, since the encoder feedback allows the controller to compensate for positioning errors introduced by the screw.

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