Optimal Analog-to-Digital Converter Resolution on Current Control for Precise Positioning Control

カテゴリ: 研究会(論文単位)

論文No: IIC12004

グループ名: 【D】産業応用部門 産業計測制御研究会

発行日: 2012/03/06

タイトル(英語): Optimal Analog-to-Digital Converter Resolution on Current Control for Precise Positioning Control

著者名: 朱 洪忠(東京大学),藤本 博志(東京大学)

著者名(英語): Zhu Hongzhong(The University of Tokyo),Fujimoto Hiroshi(The University of Tokyo)

キーワード: quantization|dither|analog-to-digital converter|current control|digital signal processing|precise positioning

要約(日本語): Current control for precise positioning control requires accurate current signals. However, current measurement error including current metering error and quantization error is unavoidable in digital control. In this paper, an approach of determining the optimal resolution of A/D converter to reduce the quantization effects is presented by taking into account the statistical properties of the current metering error. The effectiveness of the proposed method is verified by experiments using a high-precision stage.

要約(英語): Current control for precise positioning control requires accurate current signals. However, current measurement error including current metering error and quantization error is unavoidable in digital control. In this paper, an approach of determining the optimal resolution of A/D converter to reduce the quantization effects is presented by taking into account the statistical properties of the current metering error. The effectiveness of the proposed method is verified by experiments using a high-precision stage.

原稿種別: 日本語

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