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Proceedings Paper

Coordinate evaluation using three-dimensional reference standard
Author(s): Yu Ren
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Paper Abstract

To ensure the traceability of coordinate measurements made by large-scale measurement instrument, the direct evaluation based on three dimensional coordinates has been a new trend instead of the traditional verification by the measurement of lengths. This paper proposes a general large-scale coordinate evaluation manner and studies some key technical problems in detail. Firstly, a three dimensional reference standard is established and multilateration is applied to ensure direct traceability of the reference values to a length standard. Secondly, the coordinate reference values and their uncertainties after transformation are calculated. Thirdly, the Measuring Capacity Index ( Cm ) is calculated and some strategies for increasing Cm are recommended. Finally, the evaluation process is demonstrated with several experiments.

Paper Details

Date Published: 12 March 2020
PDF: 8 pages
Proc. SPIE 11439, 2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 114391K (12 March 2020); doi: 10.1117/12.2550253
Show Author Affiliations
Yu Ren, Shanghai Institute of Measurement and Testing Technology (China)


Published in SPIE Proceedings Vol. 11439:
2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Jigui Zhu; Kexin Xu; Hai Xiao; Sen Han, Editor(s)

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