Backlash Compensation for Accurate Control of Biopsy Needle Manipulators having Long Cable Transmission

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In the paper, a backlash compensator is proposed for accurate position control of the needle manipulator for the magnetic resonance imaging (MRI) guided biopsy. Having long cable driven transmission, the robot guarantees the MR-compatibility, but has accuracy degradation due to the backlash problem. To handle the problem, a backlash compensator is proposed based on the Prandtl-Ishlinskii model, regarding the continuity of the control input. The particle swarm optimization is used to identify the backlash model. Through the experiments, it is verified that the proposed compensator can reduce the tracking error dramatically, and can provide adequate accuracy for the biopsy operation.
Publisher
KOREAN SOC PRECISION ENG
Issue Date
2018-05
Language
English
Article Type
Article
Citation

INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, v.19, no.5, pp.675 - 684

ISSN
2234-7593
DOI
10.1007/s12541-018-0081-4
URI
http://hdl.handle.net/10203/242548
Appears in Collection
ME-Journal Papers(저널논문)
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