DIGITIZER FOR POSITION SENSING

Apparatus and method for determining the position, including the tilt and offset, of a pointer (PC) with respect to a grid of parallel conductors (7) with which it is electrically coupled is described. Measured responses (X1 to X6) between each of a group of conductors (W1 to W6) and the pointer (PC...

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Bibliographische Detailangaben
Hauptverfasser:	POOLE, DAN R, PARNELL, JAMES A
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	Apparatus and method for determining the position, including the tilt and offset, of a pointer (PC) with respect to a grid of parallel conductors (7) with which it is electrically coupled is described. Measured responses (X1 to X6) between each of a group of conductors (W1 to W6) and the pointer (PC) are obtained, and means are provided for fitting an expression, by the least squares or other method, for the responses of said conductors (W1 to W6) as a function of the distance C2 between a point in the group (W1 to W6) and the pointer (PC) to the measuzed responses (X1 to X6).