POSITION MEASUREMENT USING MAGNETIC FIELDS

Position detection of a linear motor (102) for an active suspension system of a vehicle chassis. A long permanent magnet strip (172) is fixed to the mover at a small angle relative to the moving direction. A Hall sensor device (182) on the stator side detects the exact field direction from the perma...

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Bibliographische Detailangaben
1. Verfasser:	O'DAY, RICHARD, F
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	Position detection of a linear motor (102) for an active suspension system of a vehicle chassis. A long permanent magnet strip (172) is fixed to the mover at a small angle relative to the moving direction. A Hall sensor device (182) on the stator side detects the exact field direction from the permanent magnet strip. Alternatively, a permanent magnet (232, 290) biased Hall sensor (238) on the stator side detects the field variation resulting from a long, wedge-shaped steel blade (231) fixed to the mover. L'invention concerne un système capteur de position qui comprend un élément mobile le long d'un chemin. Cet élément comprend un aimant allongé qui s'étend le long du chemin et dont l'orientation du champ magnétique forme un angle avec le chemin. Un capteur détermine une position de l'élément le long du chemin en mesurant un champ magnétique émis par l'aimant allongé.