Method for detecting a position of a signal generator in a position measuring system, and position measuring system
AssigneeBurkert Werke GmbH & Co.
InventorNikolai Hlubek
Life of this patent
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Abstract
A method for detecting a position of a signal generator in a position measuring system which includes at least one Hall sensor, a set of position intensity data is provided for a plurality of predetermined positions. A current measurement signal is detected for each measuring direction at the one Hall sensor or at each of the several Hall sensors for a current position of the signal generator, and the current position of the signal generator is determined from the position intensity data and all current measurement signals. The position intensity data for the position measuring system is stored in a control unit.
Claims10
A method for detecting a position of a signal generator in a position measuring system, the position measuring system comprising a position detection device with at least two Hall sensors, wherein each of the at least two Hall sensors comprises at least two subsensors, which detect magnetic field components in a first measuring direction and a second measuring direction orthogonal to the first measurement direction and provide a measurement signal for the first and for the second measurement direction, when the signal generator moves relative to the at least two Hall sensors, comprising steps of:
- for each of the at least two Hall sensors, providing a set of position intensity data for a plurality of predetermined positions within a measurement range of each of the at least two Hall sensors in each measuring direction,
- providing a current measurement signal for each measuring direction of each of the at least two Hall sensors for a current position of the signal generator, and
- determining the current position of the signal generator from the position intensity data and all current measurement signals.
A position measuring system with a position detection device, which comprises at least two Hall sensors, wherein each of the at least two Hall sensors comprises at least two subsensors, which detect magnetic field components in a first measuring direction and a second measuring direction orthogonal to the first measurement direction and provide a measurement signal for the first and for the second measurement direction, and comprises a signal generator, wherein the at least two Hall sensors are arranged successively along a movement path of the signal generator, and with a control unit that is configured such that the control unit carries out steps of:
- providing a set of position intensity data for a plurality of predetermined positions within a measurement range of each of the at least two Hall sensors in each measuring direction,
- providing a current measurement signal for each measuring direction at the at least two Hall sensors for a current position of the signal generator, and
- determining the current position of the signal generator from the position intensity data and all current measurement signals,
- wherein the position intensity data for the position measuring system is stored in the control unit.
Dependencies are inferred from the claim text.