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Determination of misalignment and angular scale errors of a laser tracker using a new geometric model and a multi-target network approach

Determination of misalignment and angular scale errors of a laser tracker using a new geometric model and a multi-target network approach

Lewis, Andrew, Hughes, Ben Richard, Forbes, A. B., Sun, Wenjuan, Veal, Dan and Nasr, Karim ORCID: 0000-0002-8604-6274 (2011) Determination of misalignment and angular scale errors of a laser tracker using a new geometric model and a multi-target network approach. Technical Report. Physikalisch-Technische Bundesanstalt (PTB). (doi:https://doi.org/10.7795/810.20130620S)

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Abstract

We report on the determination of laser tracker geometrical alignment and angular scale errors using a new geometric error model and repeated measurements of a network of fixed targets which are measured using a laser tracker, mounted in five different locations/orientations. After fitting to the data, we are able to determine geometrical/angular scale errors of the tracker with sufficient accuracy that a previously un-calibrated tracker can easily pass a standard performance verification test, after being error-mapped using our technique. Our technique uses no special equipment, takes under one hour and provides rigorous uncertainty values for the error parameters.

Item Type: Monograph (Technical Report)
Uncontrolled Keywords: coordinate metrology, laser tracker, modelling, error mapping, multilateration
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Related URLs:
Last Modified: 02 Oct 2019 12:33
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/25358

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