Device for measuring the motion of a conducting body through magnetic induction
First Claim
1. A device for measuring a motion of a moving body having a motion direction and at least one region that is electrically conducting, comprising:
- magnetic field generating means for producing a magnetic field, which penetrates at least one spatially limited partial area of the at least one electrically conducting region of the moving body;
at least two measuring devices arranged on opposite sides of the moving body and outside the magnetic field of the magnetic field generating means, for measuring a measurement magnetic field that is induced by electrical currents in the at least one electrically conducting region of the moving body, with the measurement magnetic field representing at least one motion variable of the moving body, wherein the at least two measuring devices are constructed so as to produce identical measurement signals for a motion of the moving body performed in an identical manner.
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Accused Products
Abstract
A device for measuring a motion of a moving electrically conducting body is disclosed. A magnetic field generated by, for example, electromagnets or permanent magnets, penetrates at least a partial area of the moving body. Two or more measuring devices are arranged outside the magnetic field to measure a measurement magnetic field that is induced by electrical currents in the moving body. The measuring devices are arranged essentially symmetrically with respect to the magnetic field generating means or the moving body. The measurement magnetic field represents at least one motion variable of the moving body. The measuring device is thereby no longer subjected to the temperature-dependent variations of the exciting field.
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Citations
29 Claims
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1. A device for measuring a motion of a moving body having a motion direction and at least one region that is electrically conducting, comprising:
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magnetic field generating means for producing a magnetic field, which penetrates at least one spatially limited partial area of the at least one electrically conducting region of the moving body;
at least two measuring devices arranged on opposite sides of the moving body and outside the magnetic field of the magnetic field generating means, for measuring a measurement magnetic field that is induced by electrical currents in the at least one electrically conducting region of the moving body, with the measurement magnetic field representing at least one motion variable of the moving body, wherein the at least two measuring devices are constructed so as to produce identical measurement signals for a motion of the moving body performed in an identical manner.
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2. A device for measuring a motion of a moving body having a motion direction and at least one region that is electrically conducting, comprising:
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magnetic field generating means for producing a magnetic field, which penetrates at least one spatially limited partial area of the at least one electrically conducting region of the moving body;
at least two measuring devices arranged on opposite sides of the moving body and outside the magnetic field of the magnetic field generating means, for measuring a measurement magnetic field that is induced by electrical currents in the at least one electrically conducting region of the moving body, with the measurement magnetic field representing at least one motion variable of the moving body, wherein the at least two measuring devices are arranged essentially symmetrically with respect to the magnetic field generating means or the moving body. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 26, 27)
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19. A device for measuring a motion of a moving body having a motion direction and at least one region that is electrically conducting, comprising:
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magnetic field generating means for producing a magnetic field, which penetrates at least one spatially limited partial area of the at least one electrically conducting region of the moving body;
at least two measuring devices arranged on opposite sides of the moving body and outside the magnetic field of the magnetic field generating means, for measuring a measurement magnetic field that is induced by electrical currents in the at least one electrically conducting region of the moving body, with the measurement magnetic field representing at least one motion variable of the moving body, wherein the measurement signals of the at least two measuring devices are superimposed with an identical polarity, and wherein interfering signals caused by changes in distance between the moving body and the measuring devices are superimposed with an opposite polarity. - View Dependent Claims (20)
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21. A device for measuring a motion of a moving body having a motion direction and at least one region that is electrically conducting, comprising:
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magnetic field generating means for producing a magnetic field, which penetrates at least one spatially limited partial area of the at least one electrically conducting region of the moving body;
at least two measuring devices arranged on the same side of the moving body and outside the magnetic field of the magnetic field generating means, for measuring a measurement magnetic field that is induced by electrical currents in the at least one electrically conducting region of the moving body, with the measurement magnetic field representing at least one motion variable of the moving body, wherein the measurement signals of the at least two measuring devices are superimposed with an identical polarity, and wherein interfering signals caused by changes in distance between the moving body and the measuring devices are superimposed with an opposite polarity. - View Dependent Claims (22, 23, 24)
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25. A device for measuring a motion of a moving body having a motion direction and at least one region that is electrically conducting, comprising:
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magnetic field generating means for producing a magnetic field, which penetrates at least one spatially limited partial area of the at least one electrically conducting region of the moving body;
at least one measuring device arranged outside the magnetic field of the magnetic field generating means and having at least one induction coil for measuring a measurement magnetic field that is induced by electrical currents in the at least one electrically conducting region of the moving body, with the measurement magnetic field representing at least one motion variable of the moving body; and
at least one magnetically conducting termination element arranged on end faces of the at least one induction coil.
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28. A device for measuring a motion of a moving body having a motion direction and at least one region that is electrically conducting, comprising:
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magnetic field generating means for producing a magnetic field, which penetrates at least one spatially limited partial area of the at least one electrically conducting region of the moving body; and
at least two measuring heads, each having at least one measuring device for measuring a measurement magnetic field that is induced by electrical currents in the at least one electrically conducting region of the moving body, with the measurement magnetic field representing at least one motion variable of the moving body, wherein the at least one measuring device is arranged outside the magnetic field of the magnetic field generating means, and wherein the magnetic field generating means are arranged diametrically opposed with respect to the rotation axis. - View Dependent Claims (29)
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Specification