ELECTROMAGNETIC SENSOR FOR A ROTATING MEMBER ROTATIONAL SPEED

The invention concerns a variable reluctance multichannel device for measuring the rotational speed of a rotating member coupled to a toothed wheel (16) made of ferromagnetic material comprising a plurality of sensing elements (12A, 12B, 12C) and a common magnetic energizing element (14) including a...

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Bibliographische Detailangaben
1. Verfasser:	BARES, JEAN-PAUL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The invention concerns a variable reluctance multichannel device for measuring the rotational speed of a rotating member coupled to a toothed wheel (16) made of ferromagnetic material comprising a plurality of sensing elements (12A, 12B, 12C) and a common magnetic energizing element (14) including a pole piece (20) made of ferromagnetic material and a permanent magnet (18) including several cells (39) provided with central studs for supporting said plurality of sensing elements. Dispositif à reluctance variable multivoies pour mesurer la vitesse de rotation d'un organe tournant couplé à une roue dentée (16) en matériau ferromagnétique, dispositif comportant une pluralité d'éléments de détection (12A, 12B, 12C) et un élément commun d'excitation magnétique (14) comportant une pièce polaire (20) en matériau ferromagnétique et un aimant permanent (18) comportant plusieurs alvéoles (39) munies de plots centraux destinés à supporter cette pluralité d'éléments de détection.