H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 19/24 (2006.01) G01B 7/30 (2006.01)
Patent
CA 2620286
A variable reluctance position sensor and a method for determining a position of a rotating body are provided. The variable reluctance position sensor includes a rotatable member configured to be operably coupled to the rotating body. The rotatable member has a first non-magnetic body portion and a plurality of magnets disposed equidistant from one another around an exterior region of the first non-magnetic body portion. The variable reluctance position sensor further includes a stator assembly having a second non- magnetic body portion with an aperture extending therethrough for receiving the rotatable member therein. The stator assembly further includes a plurality of coils and a plurality of coil brackets. Each coil of the plurality of coils is attached to a respective coil bracket of the plurality of coil brackets. The plurality of coil brackets is fixedly attached equidistant from one another to the second non-magnetic body portion. Rotation of the rotatable member induces the plurality of coils to generate voltage signals indicative of a position of the rotatable member.
L'invention porte sur un détecteur de position à réluctance variable et sur un procédé de détermination de la position d'un corps tournant. Ledit détecteur comporte un élément tournant solidaire du corps tournant, qui présente une première partie non magnétique et plusieurs aimants équidistants disposés à la périphérie de cette partie non magnétique. Le détecteur de position à réluctance variable comprend en outre un stator présentant également une deuxième partie non magnétique traversée par une ouverture où se loge l'élément tournant. Le stator comporte par ailleurs plusieurs bobines et leurs brides respectives de fixation, équidistantes et disposées sur ladite partie non magnétique. La rotation de l'élément tournant fait produire par les bobines des signaux de tension donnant la position de l'élément tournant.
Phan Quan V.
Sagoo Bahadur S.
Tchakarov Borislav J.
Baker Hughes Incorporated
Cassan Maclean
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