Error Compensation for Single Pair-Pole Encoder Based on Ellipse Hypothesis

Yi Fan Zeng; Fang Fang Jiang

doi:10.4028/www.scientific.net/AMR.591-593.1231

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 591-593Error Compensation for Single Pair-Pole Encoder...

Error Compensation for Single Pair-Pole Encoder Based on Ellipse Hypothesis

Abstract:

An error compensation method for the single pair-pole encoder has been discussed in this paper. This article analyzed offset, sensitivity error, quadrature error and ferromagnetic interference error of single-pole magnetic encoder to obtain the expression of each error. In order to facilitate error compensation, the common expression for describing the error has been summed up. The process for formatting the error can be assumed as the process of changing from circle to ellipse. Therefore the inverse of this process is the same as the process of error compensation. The experimental results show that the accuracy of magnetic encoder which used this method could reach ±1, thus the error compensation effect is obvious. The magnetic encoder which applied this method has the advantages of low-cost, high-precision and convenient to use.

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Periodical:

Advanced Materials Research (Volumes 591-593)

Pages:

1231-1235

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.591-593.1231

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Online since:

November 2012

Authors:

Yi Fan Zeng, Fang Fang Jiang

Keywords:

Ellipse Hypothesis, Error Compensation, Magnetic Encoder, Single Pair-Pole

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