CODED DISC FOR AN OPTOELECTRONIC DISPLACEMENT OR ANGLE MEASURING DEVICE
An optoelectronic position measuring device includes an encoder disk having a coding with a digital code and an analog coded track. The analog track includes segments which are in a series and whose width changes. An illuminator images the coding onto a sensor having transducers. The sensor determin...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
28.01.2004
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Abstract | An optoelectronic position measuring device includes an encoder disk having a coding with a digital code and an analog coded track. The analog track includes segments which are in a series and whose width changes. An illuminator images the coding onto a sensor having transducers. The sensor determines the width of the analog track at a given position of the disk relative to the sensor as a function of the number of transducers upon which the analog track is optically imaged onto. The analog track is part of a continuous reference code track which has central symmetry in which the segments have a code length corresponding to the smallest resolution step of the digital coding. The layout of the segments and the resolving power of the sensor are matched such that movement of the disk along the code length is resolvable into at least two defined steps. |
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AbstractList | An optoelectronic position measuring device includes an encoder disk having a coding with a digital code and an analog coded track. The analog track includes segments which are in a series and whose width changes. An illuminator images the coding onto a sensor having transducers. The sensor determines the width of the analog track at a given position of the disk relative to the sensor as a function of the number of transducers upon which the analog track is optically imaged onto. The analog track is part of a continuous reference code track which has central symmetry in which the segments have a code length corresponding to the smallest resolution step of the digital coding. The layout of the segments and the resolving power of the sensor are matched such that movement of the disk along the code length is resolvable into at least two defined steps. |
Author | BLAESING, FRANK BOEBEL, RALF |
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DocumentTitleAlternate | CODESCHEIBE FÜR EINE OPTOELEKTRONISCHE WEG- ODER WINKELMESSEINRICHTUNG DISQUE CODE POUR UNE UNITE OPTOELECTRONIQUE SERVANT A MESURER UN DEPLACEMENT OU UN ANGLE |
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RelatedCompanies | LEOPOLD KOSTAL GMBH & CO. KG |
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Snippet | An optoelectronic position measuring device includes an encoder disk having a coding with a digital code and an analog coded track. The analog track includes... |
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SubjectTerms | ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MOTOR VEHICLES PERFORMING OPERATIONS PHYSICS TARIFF METERING APPARATUS TESTING TRAILERS TRANSPORTING |
Title | CODED DISC FOR AN OPTOELECTRONIC DISPLACEMENT OR ANGLE MEASURING DEVICE |
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