Title :
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
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;
Conference_Titel :
Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the
Print_ISBN :
0-7803-7883-0
DOI :
10.1109/IAS.2003.1257475
