Title:
LINEAR DRIVE, AND METHOD FOR CORRECTING SYSTEMATIC ERROR OF LINEAR DRIVE
Document Type and Number:
WIPO Patent Application WO/2022/267278
Kind Code:
A1
Abstract:
A linear drive and a method for correcting a systematic error of the linear drive. The linear drive comprises a fixed assembly (1), a movable assembly (2), a first force sensor (3) and a second force sensor (4). The movable assembly (2) is movably connected to one end of the fixed assembly (1), and is capable of moving in a direction closer to or farther away from the fixed assembly (1). The first force sensor (3) is arranged at one end of the fixed assembly (1) away from the movable assembly (2) to detect a force acting on the first force sensor (3) in a direction from the fixed assembly (1) towards the movable assembly(2). The second force sensor (4) is arranged at one end of the movable assembly (2) away from the fixed assembly (1) to detect a force acting on the second force sensor (4) in a direction from the movable assembly (2) towards the fixed assembly (1). The linear drive detects, by means of the first force sensor (3), a reaction force on the fixed assembly (1) by a fixed object, such that the magnitude of an actual force which accelerates the second force sensor (4) and the movable assembly (2) is calculated, and the systematic error is therefore eliminated.
Inventors:
CHEN QINGYING (CN)
YANG GUILIN (CN)
WANG CHONGCHONG (CN)
DAI JUNJIE (CN)
ZHANG CHI (CN)
YANG GUILIN (CN)
WANG CHONGCHONG (CN)
DAI JUNJIE (CN)
ZHANG CHI (CN)
Application Number:
PCT/CN2021/125669
Publication Date:
December 29, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
NINGBO INST MATERIALS TECH & ENG CAS (CN)
International Classes:
G01P15/09; G01P15/12; G01P15/125; H02P23/14; H02P23/20; H02P25/06
Foreign References:
| CN113484540A | 2021-10-08 | |||
| CN104678711A | 2015-06-03 | |||
| US20140197706A1 | 2014-07-17 | |||
| CN110160696A | 2019-08-23 | |||
| JP2000077503A | 2000-03-14 | |||
| US5250880A | 1993-10-05 | |||
| CN111044196A | 2020-04-21 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (HANGZHOU) (CN)
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