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Proceedings Paper

Refractive index of air for interferometric length measurements
Author(s): A. Abou-Zeid
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Paper Abstract

The refractive index of air can be directly measured by a refractometer or can be calculated by using updated Edlén's formulas by measuring the parameters of the surrounding air or by using the modified two-colour method. In this paper an overview on the three methods is given by taking into account for their features, uncertainties and application fields.

Paper Details

Date Published: 6 March 2015
PDF: 11 pages
Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 944640 (6 March 2015); doi: 10.1117/12.2181552
Show Author Affiliations
A. Abou-Zeid, Physikalisch-Technische Bundesanstalt (Germany)


Published in SPIE Proceedings Vol. 9446:
Ninth International Symposium on Precision Engineering Measurement and Instrumentation
Junning Cui; Jiubin Tan; Xianfang Wen, Editor(s)

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