G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 7/14 (2006.01) G01B 7/30 (2006.01) G01D 5/20 (2006.01) G01D 5/244 (2006.01)
Patent
CA 2395580
A method for determining the position of the rotor (5) of an electric machine in the radial direction (X, Y) and in the axial direction (Z) applies a cogged ring (2), through which the shaft (5a) of the rotor (5) is placed. The shaft (5a) is provided with an auxiliary ring (6) placed substantially at the cogged ring (2). The cogged ring is provided with at least three sets of cogs, wherein the cogs of the first set (3a1, 3a2 ..., 3a8) are used to measure the movement of the shaft (5a) in the radial direction (X, Y), the cogs of the second (3b1, 3b2, 3b3, 3b4) and third (3c1, 3c2, 3c3, 3c4) sets are used to measure the movement of the shaft (5a) in the axial direction (Z), and that the cogs of the second (3b1, 3b2, 3b3, 3b4) and third (3c1, 3c2, 3c3, 3c4) sets are placed, in the axial direction (Z), at least partly in a different location in relation to each other.
L'invention concerne un procédé qui permet de déterminer la position du rotor (5) d'une machine électrique dans la direction radiale (X, Y) et dans la direction axiale (Z). Le procédé consiste à appliquer une bague dentée (2) à travers laquelle l'arbre (5a) du rotor (5) est disposé. L'arbre (5a) est muni d'une bague auxiliaire (6) placée sensiblement dans la bague dentée (2). La bague dentée est munie d'au moins trois ensembles de dents. Les dents du premier ensemble (3a1, 3a2, , 3a8) sont utilisées pour mesurer le mouvement de l'arbre (5a) dans la direction axiale (Z). Les dents du deuxième ensemble (3b1, 3b2, 3b3, 3b4) et du troisième ensemble (3c1, 3c2, 3c3, 3c4) sont placées, dans la direction axiale (Z), au moins partiellement à un emplacement différent, les unes relativement aux autres.
Borden Ladner Gervais Llp
High Speed Tech Oy Ltd.
LandOfFree
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