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

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° and precision of 0.38 mm and 0.13°.
Authors:
; ;  [1] ;  [2]
  1. Department of Mechanical Engineering, KAIST, Daejeon 305-701 (Korea, Republic of)
  2. The Cho Chun Shik Graduate School for Green Transportation, KAIST, Daejeon 305-701 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22251131
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; CONFIGURATION; DEGREES OF FREEDOM; DESIGN; ERRORS; FIELD TESTS; FINITE ELEMENT METHOD; LASERS; PERFORMANCE; ROTATION; SENSORS