Error analysis and compensation for inductosyn-based position measuring system

Author

Chunyang, Du ; Guijie, Yang

Author_Institution

Dept. of Electr. Eng., Harbin Inst. of Technol., China

Volume

1

fYear

2003

fDate

12-16 Oct. 2003

Firstpage

6

Abstract

The measurement errors are incurred by the nonideal signal of an inductosyn and a digital resolver-to-digital conversion (RDC) are analyzed, and the corresponding expressions of measurement errors are determined. A compensation method by software is presented to reduce the influences of quadrature error, amplitude imbalance and signal offsets. Experimental results show that the measurement accuracy is improved significantly from 55 to 10 mechanical angle second. The correctness of the analysis and the effectiveness of the compensation are also verified.

Keywords

compensation; electromagnetic devices; error analysis; measurement errors; position measurement; amplitude imbalance; compensation; digital resolver-to-digital conversion; error analysis; inductosyn-based position measuring system; measurement accuracy; measurement errors; multi-pole electromagnetic device; nonideal signal; quadrature error; signal offsets; Costs; Electromagnetic measurements; Error analysis; Goniometers; Hardware; Measurement errors; Position measurement; Servomechanisms; Signal analysis; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the

Print_ISBN

0-7803-7883-0

Type

conf

DOI

10.1109/IAS.2003.1257475

Filename

1257475