Design improvement of the three-beam detector towards a precise long-range 6-degree of freedom motion sensor system

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This paper presents performance enhancement of the three beam detector through design improvement based on the error analysis. The three-beam detector is a novel sensor system that measures six motions (i.e., 3 translations and 3 rotations) of a remote object with high accuracy by implementing three laser distance sensors and a vision sensor. In this paper, finite element analysis and parameter analysis are applied to the three-beam detector to analyze its structural frames and sensor configuration, respectively, in terms of sensing error. By virtue of such a systematic, quantitative error analysis, this research has successfully improved the performance of the three-beam detector and thoroughly validated through field tests that it can detect the 6-degree of freedom motions of a remote target at 30 m with an accuracy of 1.51 mm and 0.18 degrees and precision of 0.38 mm and 0.13 degrees (C) 2014 AIP Publishing LLC.
Publisher
AMER INST PHYSICS
Issue Date
2014-01
Language
English
Article Type
Article
Keywords

DISPLACEMENT MEASUREMENT SYSTEM; LOCALIZATION; SCANNERS; GPS

Citation

REVIEW OF SCIENTIFIC INSTRUMENTS, v.85, no.1

ISSN
0034-6748
DOI
10.1063/1.4861915
URI
http://hdl.handle.net/10203/189733
Appears in Collection
GT-Journal Papers(저널논문)ME-Journal Papers(저널논문)
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