Austriamicrosystems Ag

Frank Perske

Colin Steele

Marcel Urban

Siegfried Rossmann

A sensor system and method of operating such a sensor system for measuring an angle of rotation with an arrangement of at least four magnetic sensors (), at least four signal modulators (), each one connected to one of the magnetic sensors () and having at least two control states, whereby, in a first state (+), a signal received from a sensor () is output by the signal modulators () and, in a second state (&#x2212;), the inverse of the signal received from the sensor () is output by the signal modulators (), a means () for adding the signals output by the signal modulators () and a diametrically magnetized magnetic source (). The sensor system further comprises a data output () and a control circuit () with at least one control input (), allowing to switch the control circuit () into at least two different modes. In a normal mode of operation, the signal modulators () are configured in such a way that a signal corresponding to the angular position of the diametrically magnetized magnetic source () is output to the data output. In an alignment mode of operation, the signal modulators () are configured in such a way that a signal corresponding to the average magnetic field strength detected by the sensors () is output to the data output ().

Magnetic rotary encoder and method for iteratively aligning magnet relative to magnetic sensors

A system includes plural sensors to detect at least one of a magnetic field and an electrical field, where each of the plural sensors includes outputs that output sensor signals when a field is detected. Plural signal modulators receive sense signals that correspond to sensor signals from corresponding ones of the plural sensors. Each of the plural signal modulators has first and second control states. In the first control state, each signal modulator outputs sense signals, and, in the second control state, each signal modulator outputs inverted sense signals. A device receives and processes the sense signals or the inverted sense signals.

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Graz, Austria

Frank Perske