Invention Grant
- Patent Title: Method of setting the origin of a linear motor
- Patent Title (中): 设定线性电机原点的方法
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Application No.: US12057040Application Date: 2008-03-27
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Publication No.: US07830109B2Publication Date: 2010-11-09
- Inventor: Toshihiko Sasaki , Kazuo Watanabe , Katsumi Ishikawa
- Applicant: Toshihiko Sasaki , Kazuo Watanabe , Katsumi Ishikawa
- Applicant Address: JP Yokohama, Kanagawa
- Assignee: Wako Giken Co., Ltd
- Current Assignee: Wako Giken Co., Ltd
- Current Assignee Address: JP Yokohama, Kanagawa
- Agency: Banner & Witcoff, Ltd
- Priority: JP2007-121942 20070405; JP2007-131033 20070417; JP2008-061141 20080311
- Main IPC: H02K41/02
- IPC: H02K41/02
Abstract:
A movable member is moved in a preset direction in a linear motor. A characteristic-change position-detecting unit detects a position where the magnetic characteristic of the magnets has abruptly changed. The position detected is used as an origin-setting reference position. A reference position for the absolute position of the magnetic linear encoder is set based on the reference position.
Public/Granted literature
- US20080265826A1 Method of Setting the Origin of a Linear Motor Public/Granted day:2008-10-30
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