POSITION ENCODING USING IMPEDANCE COMPARISON

PROBLEM TO BE SOLVED: To provide a position encoder that can avoid failures due to mixing of ink or dust. SOLUTION: An encoder system includes an encoding medium, having a plurality of encoder target portions alternating with a plurality of encoder window portions. A sensor is movable, in relation t...

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Bibliographische Detailangaben
Hauptverfasser:	SAIDAN SAIFUL BAHARI BIN, RAJAIAH SEELA RAJ
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS RELAYS SELECTORS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a position encoder that can avoid failures due to mixing of ink or dust. SOLUTION: An encoder system includes an encoding medium, having a plurality of encoder target portions alternating with a plurality of encoder window portions. A sensor is movable, in relation to the encoding medium. A signal source provides an electronic drive signal to the sensor and sensor electronics coupled to the sensor sense the electrical characteristics of a code strip, to determine whether the sensor is next to an encoder target portion or is next to an encoder window portion. COPYRIGHT: (C)2006,JPO&NCIPI