Verification of the Usefulness of Eccentric Structure in the Magnetic Encoders Using a Multipole Magnet
Verification of the Usefulness of Eccentric Structure in the Magnetic Encoders Using a Multipole Magnet
カテゴリ: 論文誌(論文単位)
グループ名: 【D】産業応用部門(英文)
発行日: 2021/05/01
タイトル(英語): Verification of the Usefulness of Eccentric Structure in the Magnetic Encoders Using a Multipole Magnet
著者名: Kazuki Otomo (Chuo university), Yusuke Deguchi (Chuo university), Keita Sado (Chuo university), Yuki Nagatsu (Chuo university), Hideki Hashimoto (Chuo university)
著者名(英語): Kazuki Otomo (Chuo university), Yusuke Deguchi (Chuo university), Keita Sado (Chuo university), Yuki Nagatsu (Chuo university), Hideki Hashimoto (Chuo university)
キーワード: magnetic encoder,absolute encoder,eccentric structure,multipolarization
要約(英語): It is more difficult for magnetic encoders to achieve a higher resolution than optical encoders. The resolution can be improved by multipolarizing the magnet, however the absolute angle cannot be calculated. Using the eccentric rotation of a 4-pole magnet, the authors simultaneously achieved high resolution and absolute angle calculation for a magnetic encoder. In this paper, we propose a high-resolution magnetic absolute encoder using an 8-pole magnet. The higher the eccentricity of the magnet, the easier it is to calculate the offset required to calculate the absolute angle. However, as the eccentricity increases, the angle error increases. The relationship between eccentricity and angle error is clarified, and an appropriate eccentricity is examined.
本誌: IEEJ Journal of Industry Applications Vol.10 No.3 (2021)
本誌掲載ページ: 317-323 p
原稿種別: 論文/英語
電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/10/3/10_20004681/_article/-char/ja/
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