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1. WO2020109699 - MEASUREMENT OF A RELATIVE POSITION OF MOVABLE ELEMENTS

Publication Number WO/2020/109699
Publication Date 04.06.2020
International Application No. PCT/FR2019/052769
International Filing Date 20.11.2019
IPC
G01D 5/245 2006.01
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
244influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
245using a variable number of pulses in a train
CPC
G01D 5/2454
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
244influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
245using a variable number of pulses in a train
2454Encoders incorporating incremental and absolute signals
Applicants
  • SAFRAN ELECTRONICS & DEFENSE [FR]/[FR]
Inventors
  • DAVID, Camille
Agents
  • BOIRE, Philippe
Priority Data
18 7203929.11.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) MEASUREMENT OF A RELATIVE POSITION OF MOVABLE ELEMENTS
(FR) MESURE D'UNE POSITION RELATIVE D'ELEMENTS MOBILES
Abstract
(EN)
An assembly for measuring a relative position of two movable elements (11, 12) with respect to one another comprises a ribbon (1) having a magnetic strip, and two magnetic sensors (2, 3). The ribbon is intended to be fastened to one of the two elements, and the magnetic sensors both to be fastened to the other element. One of the two sensors serves to precisely measure a relative position of the two elements within a period of orientation alternation of magnetic poles, and the other sensor serves to define an origin of the measurements in order to obtain an absolute-measurement result for the relative position of the two elements with respect to one another.
(FR)
Un ensemble de mesure d'une position relative de deux éléments (11, 12) mobiles l'un par rapport à l'autre, comprend un ruban (1) à piste magnétique et deux capteurs magnétiques (2, 3). Le ruban est destiné à être fixé sur l'un des deux éléments, et les capteurs magnétiques à être fixés tous les deux sur l'autre élément. L'un des deux capteurs sert à mesurer précisément une position relative des deux éléments à l'intérieur d'une période d'alternance d'orientation de pôles magnétiques, et l'autre capteur sert à définir une origine des mesures pour obtenir un résultat de mesure absolue pour la position relative des deux éléments l'un par rapport à l'autre.
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