| 摘要 |
A path sensor includes at least one electromagnetic converter element and a magnetic circuit having at least one conductance piece (3, 4; 9, 10; 15, 16; 17, 18; 22, 23) and at least one magnet (2; 7, 8; 14; 20, 21). By movement of an element, an effect of the magnetic flux measurable by the converter element is affected. All parts of the magnetic circuit are immovable relative to one another during the path measurement, and the magnetic circuit and the converter element are moveable relative to one another. A change of the magnetic field plottable by the converter element is affected by a change of the air gap (d) in the magnetic circuit during the movement, and the conductance pieces of the magnetic circuit have a shape that conforms to the trajectory of the converter element, so that based on a change of the width (d) of the air gap in the trajectory (5; 6; 13), a predeterminable signal in the converter element is provided.
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