No Bearings or Housing Needed

The system is resistant to shocks and vibrations and transmits interference-free signals even under extreme conditions. It adds an alternative to the standard optical scanning principle, which has to be protected in a closed housing with a bearing-supported shaft.

The magnetic scanning principle of Johannes Huebner uses a stationary sensor that records magnetic field changes of a rotating pulse wheel with north-south poles. The alternating magnetic field produces a sinusoidal or rectangular voltage in this sensor. It is also resistant to soiling and provides for large radial and axial tolerances.

Huebner magnetic encoders are wear-free and low noise. The variant with a split pulse wheel is particularly well suited for retrofitting and upgrading activities as well as for applications without a free shaft end.

Magnetic encoder technology is used in steel mills, ship drives, gas and water turbines, pumped storage power stations, large excavators inopencast mining, conveyors and drilling rigs, among others.