Sensor based on the travel time principle with a detector unit for mechanically elastic waves
First Claim
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1. A position sensor based on the travel time principle of a mechanically elastic wave, said sensor comprising:
- a wave guide having a detector range, a free end, and a center range located between the detector range and free end;
an electric hollow return conductor formed of an electrically conductive, non magnetic material surrounding the wave guide;
a detector coil attached to the wave guide in its detector range, as well as; and
a position element movable along the wave guide and positioned inside said hollow return conductor within the center range of said wave guide.
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Abstract
A position sensor based on the travel time principle of a mechanically elastic wave length having a wave guide, an electrical hollow return conductor, a detector coil attached to the wave guide and a position element which is movable along the wave guide which generates or detects mechanical elastic wave.
22 Citations
15 Claims
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1. A position sensor based on the travel time principle of a mechanically elastic wave, said sensor comprising:
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a wave guide having a detector range, a free end, and a center range located between the detector range and free end; an electric hollow return conductor formed of an electrically conductive, non magnetic material surrounding the wave guide; a detector coil attached to the wave guide in its detector range, as well as; and a position element movable along the wave guide and positioned inside said hollow return conductor within the center range of said wave guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification