When monitoring the operation of rotating shafts in pumps or turbines for example, it is important to use reliable non-contact sensors so changes in performance that could indicate future failure can be monitored. Andy Anthony, managing director of Monitran, outlines the benefits of using eddy current sensors for this type of application.

Eddy current displacement sensors are non-contact devices capable of high resolution measurement of the position of a conductive target. They detect the distance of the target by sensing fluctuations in the magnetic field generated by a reference coil in the tip of the probe.

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