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US 7,548,057 B2Granted
Full waveguide
OwnerKlaus Manfred Steinichinventor
Life of this patent
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Abstract
A position sensor according to the transit time principle of a mechanical-elastic wave. The position sensor includes a waveguide made out of electrically conductive material, and a detector coil in a detector range being arranged coaxially on the waveguide. A position magnet moveable along the waveguide. A position magnet moves along the waveguide and a flux guide unit is assigned to the detector coil.
Claims23
A position sensor according to the transit time principle of a mechanical-elastic wave, said sensor comprising:
- a waveguide made of electrically conductive material;
- a detector coil in a detector range being arranged coaxially on the waveguide;
- a position magnet moveable along the waveguide;
- a flux guide unit being assigned to said detector coil;
- and
- an electrical return, at least in the axial range of the detector coil of the return, being coaxially arranged externally around the detector coil wherein said electrical return consists of electrically conductive and also magnetic shielding material.
3 more elements
A position sensor according to the transit time principle of a mechanical-elastic wave, said sensor comprising:
- a waveguide made of electrically conductive material;
- a detector coil in a detector range being arranged coaxially on the waveguide;
- a position magnet moveable along the waveguide;
- a flux guide unit being assigned to said detector coil;
- and
- an electrical return, at least in the axial range of the detector coil of the return, being coaxially arranged externally around the detector coil wherein said electrical return consists of electrically conductive and also magnetic shielding material, and wherein said electrical return exhibits a completely enclosed cross-section.
3 more elements
Dependencies are inferred from the claim text.