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1. WO2020117237 - DUAL ABSOLUTE ENCODER

Publication Number WO/2020/117237
Publication Date 11.06.2020
International Application No. PCT/US2018/064182
International Filing Date 06.12.2018
IPC
G01D 5/14 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
14influencing the magnitude of a current or voltage
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
G01D 5/249 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
249using pulse code
G01B 7/30 2006.01
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
7Measuring arrangements characterised by the use of electric or magnetic means
30for measuring angles or tapers; for testing the alignment of axes
Applicants
  • HARMONIC DRIVE SYSTEMS INC. [JP]/[JP]
Inventors
  • KATOH, Yuki
  • COYNE, Brian
Agents
  • CAGE, Shawn B.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DUAL ABSOLUTE ENCODER
(FR) ENCODEUR ABSOLU DOUBLE
Abstract
(EN)
An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with a shaft or other rotating element of a machine. The second encoder includes a second position sensor of the two or more position sensors, the second position sensor being disposed on the substrate for on-axis or off-axis alignment with the shaft or other rotating element of a machine. Each position sensor is configured to detect different or common signal types, and a signal type of the second position sensor excludes optical signals.
(FR)
Un ensemble encodeur donné à titre d'exemple comprend un substrat, un premier encodeur et un second encodeur. Le substrat comporte au moins deux capteurs de position, chaque capteur de position étant configuré pour détecter une position rotative d'un arbre ou d'un autre élément rotatif d'une machine. Le premier encodeur comprend au moins le premier capteur de position des deux capteurs de position ou plus. Le ou les premiers capteurs de position sont disposés sur le substrat pour un alignement hors axe avec un arbre ou un autre élément rotatif d'une machine. Le second encodeur comprend le second capteur de position des deux capteurs de position ou plus, le second capteur de position étant disposé sur le substrat pour un alignement sur axe ou hors axe avec l'arbre ou un autre élément rotatif d'une machine. Chaque capteur de position est configuré pour détecter des types de signaux différents ou communs, et un type de signal du second capteur de position exclut des signaux optiques.
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