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1. EP0367781 - ROTATION ANGLE POTENTIOMETER

Office
European Patent Office
Application Number 88905790
Application Date 30.06.1988
Publication Number 0367781
Publication Date 16.05.1990
Publication Kind B1
IPC
G01B 7/30
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
G01D 5/16
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
16by varying resistance
G01D 5/165
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
16by varying resistance
165by relative movement of a point of contact and a resistive track
H01C 10/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
10Adjustable resistors
30the contact sliding along resistive element
32the contact moving in an arcuate path
H01C 10/34
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
10Adjustable resistors
30the contact sliding along resistive element
32the contact moving in an arcuate path
34the contact or the associated conducting structure riding on collector formed as a ring or portion thereof
CPC
G01D 5/1655
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
14influencing the magnitude of a current or voltage
16by varying resistance
165by relative movement of a point of contact ; or actuation; and a resistive track
1655more than one point of contact or actuation on one or more tracks
H01C 10/34
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
10Adjustable resistors
30the contact sliding along resistive element
32the contact moving in an arcuate path
34the contact or the associated conducting structure riding on collector formed as a ring or portion thereof
Applicants ZF FRIEDRICHSHAFEN AKTIENGESELLSCHAFT
Inventors LANG, ARMIN
Designated States
Priority Data 3722389 07.07.1987 DE
Title
(DE) DREHWINKEL-POTENTIOMETER.
(EN) ROTATION ANGLE POTENTIOMETER
(FR) POTENTIOMETRE DE MESURE DE L'ANGLE DE ROTATION.
Abstract
(EN) A potentiometer for the redundant measurement of the rotation angle of a shaft (2) with respect to a stationary part has two concentric arc-shaped resistance tracks (4, 5) on a stationary disc (1). Two concentric circular collector tracks (14, 15) are arranged on a disc (3) which is parallel to the stationary disc and rotates with the shaft (2). Two collector brush grinders (17, 18) are in contact with the two resistance tracks (4, 5). Two redundant measurements are made at two terminal lugs (10, 11) attached to the stationary disc (1), which are connected to the collector tracks (14, 15) through two collector brush grinders (12, 13).
(FR) Un potentiomètre de mesure redondante de l'angle de rotation d'un arbre (2) par rapport à une partie statique comprend deux bandes concentriques de résistance (4, 5) en arc de cercle agencées sur un disque statique (1). Deux bandes collectrices (14, 15) concentriques circulaires sont agencées sur un disque (3) parallèle au disque statique et qui tourne avec l'arbre (2). Deux balais conducteurs (17, 18) connectés aux bandes collectrices (14, 15) sont en contact avec les deux bandes de résistance (4, 5). Deux valeurs redondantes de mesure sont saisies par deux barrettes (10, 11) fixées sur le disque statique (1) et en contact avec les bandes collectrices (14, 15) par l'intermédiaire de deux balais conducteurs (12, 13).