Position sensor with compensated magnetic poles

Details Position sensor with compensated magnetic poles Position sensor with compensated magnetic poles

2007-09-04

2007-09-04

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Digital pattern reading type converter

Magnetic, inductive or capacitive

Reexamination Certificate

active

11349336

ABSTRACT:
The object of the invention relates to an encoder for a rotary position sensor, including a multipolar magnetic ring driven into rotation around its axis, and provided at its circumference with magnetic poles of a given sign, alternately positioned with magnetic poles of an opposite sign, so as to form at least one series of pairs of magnetic poles with a determined period, each magnetic pole of a given sign having a width Iiand a magnetic polarisation value Miwhereas each magnetic pole of opposite sign has a width Ii+1different from width Iiand a magnetic polarisation value Mi+1, characterized in that the polarization of the magnetic poles is such that Mi×Ii=Mi+1×Ii+1.

REFERENCES:
patent: 6400143 (2002-06-01), Travostino et al.
patent: 19758037 (1998-07-01), None
patent: 19800774 (1999-07-01), None
patent: 10017542 (2001-10-01), None
patent: 1130362 (2001-09-01), None

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