POSITION SENSOR, POSITION MEASURING DEVICE AND METHOD FOR THE OPERATION THEREOF
First Claim
1. A position measuring device for detecting a position of a position signal generator that can be moved along a measuring path, wherein the position measuring device comprises at least a first conductor loop that is arranged along the measuring path for detecting a magnetic signal, generated by the position signal generator, wherein the first conductor loop is embodied such that a magnetic coupling between a signal generation device of the position signal generator and the first conductor loop changes in dependence on the position of the position signal generator, and wherein it comprises an evaluation unit for detecting the position in dependence on a first signal, generated by the magnetic signal in the first conductor loop, wherein said position measuring device comprises at least one induction coil and is configured to generate, by means of said at least one induction coil, an induction field for supplying said position signal generator with energy.
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Abstract
A position signal generator for an electronic position measuring device is disclosed. In an embodiment, the position signal generator includes a signal generation device for generating a periodic magnetic signal, and an electric power supply device for supplying the signal generation device with electric energy. The position of the position signal generator is determined via the position measuring device.
2 Citations
23 Claims
- 1. A position measuring device for detecting a position of a position signal generator that can be moved along a measuring path, wherein the position measuring device comprises at least a first conductor loop that is arranged along the measuring path for detecting a magnetic signal, generated by the position signal generator, wherein the first conductor loop is embodied such that a magnetic coupling between a signal generation device of the position signal generator and the first conductor loop changes in dependence on the position of the position signal generator, and wherein it comprises an evaluation unit for detecting the position in dependence on a first signal, generated by the magnetic signal in the first conductor loop, wherein said position measuring device comprises at least one induction coil and is configured to generate, by means of said at least one induction coil, an induction field for supplying said position signal generator with energy.
- 19. A method for operating a position measuring device for detecting a position of a position signal generator, which can be moved along a measuring path, wherein the position measuring device is provided with at least a first conductor loop, arranged along the measuring path for detecting a magnetic signal that is generated by the position signal generator, wherein the first conductor loop is embodied such that a magnetic coupling between a signal generation device of the position signal generator and the first conductor loop changes in dependence on the position of the position signal generator, and wherein an evaluation unit detects the position in dependence of a first signal generated in the first conductor loop by the magnetic signal, wherein said position measuring device comprises at least one induction coil and generates, by means of said at least one induction coil, an induction field for supplying said position signal generator with energy.
Specification