Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2006-08-16
2011-10-04
Phan, Huy Q (Department: 2858)
Electricity: measuring and testing
Magnetic
Displacement
C324S251000, C324S207200
Reexamination Certificate
active
08030916
ABSTRACT:
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 (10, 11, 12, 13), at least four signal modulators (30, 31, 32, 33), each one connected to one of the magnetic sensors (10, 11, 12, 13) and having at least two control states, whereby, in a first state (+), a signal received from a sensor (10, 11, 12, 13) is output by the signal modulators (30, 31, 32, 33) and, in a second state (−), the inverse of the signal received from the sensor (10, 11, 12, 13) is output by the signal modulators (30, 31, 32, 33), a means (90) for adding the signals output by the signal modulators (30, 31, 32, 33) and a diametrically magnetized magnetic source (9). The sensor system further comprises a data output (82) and a control circuit (80) with at least one control input (81), allowing to switch the control circuit (80) into at least two different modes. In a normal mode of operation, the signal modulators (30, 31, 32, 33) are configured in such a way that a signal corresponding to the angular position of the diametrically magnetized magnetic source (9) is output to the data output. In an alignment mode of operation, the signal modulators (30, 31, 32, 33) are configured in such a way that a signal corresponding to the average magnetic field strength detected by the sensors (10, 11, 12, 13) is output to the data output (82).
REFERENCES:
patent: 4646088 (1987-02-01), Inoue
patent: 5491632 (1996-02-01), Pawlak et al.
patent: 5500589 (1996-03-01), Sumcad et al.
patent: 6433536 (2002-08-01), Yundt et al.
patent: 7095228 (2006-08-01), Steele et al.
patent: 2002/0008513 (2002-01-01), Hiligsmann et al.
patent: 2005/0088170 (2005-04-01), Steele et al.
patent: WO 03/060537 (2003-07-01), None
Perske Frank
Steele Colin
Urban Marcel
austriamicrosystems AG
Cozen O'Connor
Nguyen Trung
Phan Huy Q
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