Numerical study on uncertainty of two-color method

D. Wei; M. Xiao; M. Aketagawa

doi:10.2971/jeos.2015.15051

Numerical study on uncertainty of two-color method

D. Wei, M. Xiao, M. Aketagawa

School of Mechanical Engineering

Nagaoka University of Technology

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The two-color method is one of the commonly used approaches for converting a length measured in air to a length in vacuum to eliminate the influence of the refractive index of air. However, the error of the technique is not well known. We investigate this uncertainty based on a generalized expression of the two-color method proposed in this paper and using numerical simulations. Numerical calculations reveal the change of the error with temperature, air pressure, and wavelengths. These characteristics can be used to optimize the two-color method.

Original language	English
Article number	15051
Journal	Journal of the European Optical Society-Rapid Publications
Volume	10
DOIs	https://doi.org/10.2971/jeos.2015.15051
Publication status	Published - 7 Nov 2015

Keywords

Length measurement
Optimization
Refractive index of air
Two-color method
Uncertainty

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10.2971/jeos.2015.15051

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KW - Refractive index of air

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KW - Uncertainty

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Numerical study on uncertainty of two-color method

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Keywords

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