Microprocessor-based phase determination for high-resolution optical sensors

17 January 1985

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 21 (2) , 65-67
https://doi.org/10.1049/el:19850045

Abstract

A microprocessor-controlled phase measuring system for high-resolution optical sensors is described. An automatic calibration procedure provides drift compensation and long-term accuracy. Using a 12 bit A/D convertor, phase interpolation with a resolution of 0.12° (∼1/3000 of a period) is demonstrated.

Keywords

DRIFT COMPENSATION
AUTOMATIC CALIBRATION
PHASE INTERPOLATION
12 BIT A/D CONVERTOR
HIGH-RESOLUTION OPTICAL SENSORS
MICROPROCESSOR-CONTROLLED PHASE MEASURING SYSTEM
LONG-TERM ACCURACY

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