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Proceedings Paper

Optical tomograph for the measurement of 3-dimensional refractive index distribution in a liquid
Author(s): Luc C. Joannes; Olivier Dupont; Kenneth Löth
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Paper Abstract

A compact Interferometric Tomograph has flown on a MASER sounding rocket in spring 2002. This original instrument has been developed by Lambda-X (optics) and the Swedish Space Corporation-SSC (electronics) to measure 3-dimentional temperature (through refractive index) distribution in a liquid while it evaporates though a limited free surface. The tomograph includes 6 interferometers arranged symmetrically around a liquid cell. The paper describes the module and concentrates on the optical beam splitting and combining original systems that have been implemented in the compact instrument; holographic gratings are used to split the sole laser beam into 6 beams and to combine the 6 interferometer views on 2 CCD cameras. Finally, 3-dimentional temperature distributions reconstructed from flight data are presented.

Paper Details

Date Published: 13 April 2018
PDF: 8 pages
Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105682R (13 April 2018); doi: 10.1117/12.2500122
Show Author Affiliations
Luc C. Joannes, LAMBDA-X sa (Belgium)
Olivier Dupont, LAMBDA-X sa (Belgium)
Kenneth Löth, Swedish Space Corp. (Sweden)

Published in SPIE Proceedings Vol. 10568:
International Conference on Space Optics — ICSO 2004
Josiane Costeraste; Errico Armandillo, Editor(s)

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