eprintid: 10110446
rev_number: 14
eprint_status: archive
userid: 608
dir: disk0/10/11/04/46
datestamp: 2020-09-23 09:49:01
lastmod: 2021-09-20 22:14:52
status_changed: 2020-09-23 09:49:01
type: article
metadata_visibility: show
creators_name: Gao, Y
creators_name: Kyle, S
creators_name: Lin, J
creators_name: Yang, L
creators_name: Ren, Y
creators_name: Zhu, J
title: Laser tracker orientation in confined space using on-board targets
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F44
keywords: large-scale metrology, orientation method, laser tracker, on-board targets, confined space, portable coordinate measurement, METROLOGY
note: Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
abstract: This paper presents a novel orientation method for two laser trackers using on-board targets attached to the tracker head and rotating with it. The technique extends an existing method developed for theodolite intersection systems which are now rarely used. This method requires only a very narrow space along the baseline between the instrument heads, in order to establish the orientation relationship. This has potential application in environments where space is restricted. The orientation parameters can be calculated by means of two-face reciprocal measurements to the on-board targets, and measurements to a common point close to the baseline. An accurate model is then applied which can be solved through nonlinear optimization. Experimental comparison has been made with the conventional orientation method, which is based on measurements to common intersection points located off the baseline. This requires more space and the comparison has demonstrated the feasibility of the more compact technique presented here. Physical setup and testing suggest that the method is practical. Uncertainties estimated by simulation indicate good performance in terms of measurement quality.
date: 2016-08-01
date_type: published
publisher: IOP PUBLISHING LTD
official_url: http://dx.doi.org/10.1088/0957-0233/27/8/085010
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1152722
doi: 10.1088/0957-0233/27/8/085010
lyricists_name: Kyle, Stephen
lyricists_id: SAKYL00
actors_name: Flynn, Bernadette
actors_id: BFFLY94
actors_role: owner
full_text_status: public
publication: Measurement Science and Technology
volume: 27
number: 8
pages: 8
citation:        Gao, Y;    Kyle, S;    Lin, J;    Yang, L;    Ren, Y;    Zhu, J;      (2016)    Laser tracker orientation in confined space using on-board targets.                   Measurement Science and Technology , 27  (8)      10.1088/0957-0233/27/8/085010 <https://doi.org/10.1088/0957-0233%2F27%2F8%2F085010>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10110446/1/Gao_2016_Meas._Sci._Technol._27_085010.pdf