Positioning error correction using virtual coordinate system for mMTs
- Authors
- Lee, Minho; Park, Jae jun; Cho, Nahmgyoo
- Issue Date
- Dec-2013
- Publisher
- 대한기계학회
- Keywords
- Positioning system; Error correction; Squareness error; Coordinate system; Miniaturized machine tools
- Citation
- Journal of Mechanical Science and Technology, v.27, no.12, pp.3861 - 3868
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of Mechanical Science and Technology
- Volume
- 27
- Number
- 12
- Start Page
- 3861
- End Page
- 3868
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/29324
- DOI
- 10.1007/s12206-013-0930-0
- ISSN
- 1738-494X
- Abstract
- In this paper, a new calibration and correction method is proposed to effectively improve positioning accuracy of practical 3-DOF positioning
devices of miniaturized machine tools (mMTs). The method is composed of correction of the machine’s coordinate system,
which is distorted due to the effects of various error components, and correction of positioning errors at arbitrary points in workspace
using this corrected coordinate system. If only positioning results could be measured and assessed three-dimensionally, squareness and
scale errors of the mMTs’ coordinate system can be corrected using this method without any additional device or jig. The proposed
method was applied to correct the positioning errors of a serial-type 3-DOF precision positioning device used for a micro/nano-pattering
system. After correction of over 40 μm × 40 μm × 40 μm of its workspace, the positioning accuracy was successfully improved by about
98%.
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