In order to enable the guide or coating rolls to operate at the highest precision, the axial roll runout is continuously measured. Eddy current displacement sensors detect the axial movement of the roll by determining the distance to the roll.

In addition to the compact design, the advantage of the eddy current sensors used is their resistance in harsh environments: the sensors deliver precise measurement results even when oil, dirt, temperatures or pressure act on the sensor. The compact eddyNCDT 3001 sensors also have an integrated controller, which further facilitates integration.

Advantages:

• Reliable measurement of axial roll movement
• Robust in terms of temperature, oil and contamination
• Compact sensor design