US 11,920,927 B2
Position encoder with combined inductive and magnetic sensors
Maxime Launay, Renaze (FR); and Pierre Karciauskas, Château Gontier (FR)
Assigned to Vishay MCB Industrie S.A.S., (FR)
Filed by Vishay MCB Industrie S.A.S., Château-Gontier (FR)
Filed on May 3, 2022, as Appl. No. 17/735,212.
Claims priority of application No. 21305571 (EP), filed on May 3, 2021.
Prior Publication US 2022/0349696 A1, Nov. 3, 2022
Int. Cl. G01B 7/30 (2006.01); G01D 5/14 (2006.01); G01D 5/16 (2006.01); G01D 5/20 (2006.01)
CPC G01B 7/30 (2013.01) [G01D 5/145 (2013.01); G01D 5/16 (2013.01); G01D 5/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A position encoder, comprising:
a first member and a second member, with the first member being movable relative to the second member;
a first sensor arranged at one of the first or second members, and a first track arranged at the other one of the first or second members such that the first sensor moves along the first track when the first member moves relative to the second member, with the first sensor being configured to capture at least one of its position or displacement along the first track;
a second sensor arranged at one of the first or second members, and a second track arranged at the other one of the first or second members such that the second sensor moves along the second track when the first member moves relative to the second member, with the second sensor being configured to capture at least one of its position or displacement along the second track;
wherein the first sensor is an inductive sensor and the first track includes alternating conductive and non-conductive sections distributed along the first track, and
wherein the second sensor is a magnetic sensor and the second track includes a plurality of magnetic poles distributed along the second track with alternating magnetic polarity.