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1. US5113172 - Angle of rotation potentiometer

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United States of America
Application Number 07444129
Application Date 27.11.1989
Publication Number 5113172
Publication Date 12.05.1992
Grant Number 5113172
Grant Date 12.05.1992
Publication Kind A
IPC
H01C 10/26
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
10Adjustable resistors
26resistive element moving
H01C 10/16
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
10Adjustable resistors
16including plural resistive elements
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
H01C 10/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
10Adjustable resistors
30the contact sliding along resistive element
32the contact moving in an arcuate path
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
CPC
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
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
Applicants Zahnradfabrik Friedrichshafen, AG
Inventors Lang Armin
Agents Zalkind Albert M.
Priority Data 3722389 07.07.1987 DE
Title
(EN) Angle of rotation potentiometer
front page image
Abstract
(EN)

A potentiometer for the redundant measurement of the angle of rotation of a shaft compared with a fixed member has two resistance paths located concentrically with each other on a fixed disk. Two collector paths having the shape of circular rings are located concentrically with each other on a disk situated parallel to the fixed disk and rotating together with the shaft. Two slide contacts connected with the collector paths are in contact with the two resistance paths. Two redundant measured values are tapped at two terminal contacts fastened to the fixed disk that are in contact with the collector paths through two slide contacts.
Related patent documents
EP0367781
WO/1989/000331
JP1990504688
DE000003822314
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