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Micro-EpsilonMicro-Epsilon has launched a new principle of distance measurement with the MDS (Magnetic Displacement Sensor). In contrast to the widely used Hall principle is based on the MDS's patented Micro-Epsilon procedure by which a linear relationship between magnetic and position output signal is based. Since this measuring principle printed coils are used, the manufacturing process is not necessary to rely on semiconductor processes. This is the customization much easier.

The sensors have an extremely high basic sensitivity, which allows a very simple and cost-effective evaluation circuit. With an eddy current sensor as the technological core, both very fast and very high resolution designs can be realized. Compared to Hall sensors z. B. significantly larger measuring ranges (currently 60 mm are realized) can be achieved. In addition, much smaller magnets are needed as a target. This reduces costs and facilitates installation. The output signal is a pulse-width-variable signal, which can be easily read by a microcontroller via a time measurement. The first models were developed by Micro-Epsilon especially for use in the field of white goods, especially in washing machines. Especially in this application, the principle-related advantages can be used particularly well. Thus, the load can be measured with very high resolution and the movement of the tub when spinning with high dynamics can be detected. In addition, the MDS family is suitable for applications in the automotive sector and for all OEM areas where longer paths with high resolution are required.


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