Title:
POSITION DETECTION SYSTEM, ACTUATOR, AND POSITION DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/009514
Kind Code:
A1
Abstract:
A position detection system (5) comprises a primary encoder (15) that detects the position of a motor shaft, a secondary encoder (25) that detects the position of an output shaft of a reducer, and a calculation unit (9). The reduction ratio of the reducer is 1/n, where n is a non-integer. The calculation unit calculates a plurality of position calculation values related to the position within one rotation of the motor shaft on the basis of the position within one rotation of the secondary encoder, and calculates the total number of rotations of the secondary encoder on the basis of the actual position value related to the position within one rotation of a rotor and the plurality of position calculation values.
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Inventors:
TAGUCHI TAICHI (JP)
Application Number:
PCT/JP2022/027152
Publication Date:
January 11, 2024
Filing Date:
July 08, 2022
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
G01D5/244
Foreign References:
| JP2008039737A | 2008-02-21 | |||
| JP2007010461A | 2007-01-18 | |||
| US20150211892A1 | 2015-07-30 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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