Error testing and compensation of an inductosyn-based angular measurement system

doi:10.16511/j.cnki.qhdxxb.2016.22.020

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Abstract Installation and calibration difficulties restrict the use of circular gratings to improve the precision of practical high-precise inductosyn-based angular measurement systems through angle-error sampling and compensation. The study analyzes appropriate solutions of sparse error sampling and compensation methods for this problem. The error characteristics of inductosyn-based angular measurement systems are analyzed to compensate for the subdivision error caused by the existing zero-point error and other subdivision errors to get the overall zero-point error with a prism. An error compensation method is then given using sparse sampling data. Tests show that the precision of an angular measurement system is improved by this method from a peak to peak error of 11.7″ to 2.9″. The method accurately identifies the zero-point error and provides full-range error compensation with sparse sampling data for an inductosyn-based angular measurement system.

Keywords inductosyn error compensation error testing zero- point error subdivision error polyhedral prism

ZTFLH:

TP712

Issue Date: 15 June 2016

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	LI Haixia
	ZHANG Rong
	HAN Fengtian

Cite this article:

LI Haixia,ZHANG Rong,HAN Fengtian. Error testing and compensation of an inductosyn-based angular measurement system[J]. Journal of Tsinghua University(Science and Technology), 2016, 56(6): 611-616.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2016.22.020 OR http://jst.tsinghuajournals.com/EN/Y2016/V56/I6/611

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