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http://dx.doi.org/10.5302/J.ICROS.2014.14.0004

Calibration of an Optical Pick-up Performance Evaluator  

Ryoo, Jung Rae (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Doh, Tae-Yong (Department of Electronics and Control Engineering, Hanbat National University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.20, no.5, 2014 , pp. 578-583 More about this Journal
Abstract
Optical pick-up is a core component for data read/write operations in optical disc drives, and an optical pick-up performance evaluator is an instrument used to analyze the overall performance of an optical pick-up. Due to inevitable errors in an analog measurement circuit, resultant evaluation data is not guaranteed to be accurate. In this paper, a calibration method for an optical pick-up performance evaluator is proposed to ensure evaluation accuracy. Measured data is corrected by a 1st order correction function, and a calibration process based on least-square method is utilized to obtain correction coefficients of the correction function. The proposed calibration method is applied to experiments, and enhanced accuracy is presented with resultant evaluation data.
Keywords
calibration; optical pick-up; performance evaluator; least-square method; absolute accuracy;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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