Patent ID: 7015687
Filing Date: 2006-03-21
Classification: G01D

Abstract:
1. Inductive position sensor including a scale ( 10 ) and a cursor ( 20 ) movable relatively to each other along a measuring path (x), the scale ( 10 ) including one or several conductors forming a series of conductive loops spaced along the measuring path by a pitch T, the cursor ( 20 ) including inducing conductors ( 21 to 23 ; 42 , 44 ) and induced conductors ( 31 to 33 ; 41 , 43 ), connected to an electronic measuring circuit and each forming a series of alternating hairpin turns spaced along the measuring path by a pitch T, characterized in that the cursor's ( 20 ) conductors ( 21 to 23 , 31 to 33 ; 41 to 44 ) are arranged in at least one first group and in at least one second group separate from the at least one first group, each group having two interlaced conductors set apart by a multiple of T/2, coupling between the inducing and induced conductors from the at least one first and the at least one second groups taking place via the scale's ( 10 ) conductors, wherein the cursor (