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Proceedings Paper

Evaluation of spectrometer performance for flight experiments in ballistic environment
Author(s): Philippe Millier; Ronan Le Borne; David Durand; Vincent Plano; Catherine Canac; Laurent Segard; Renaud Monestier
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Paper Abstract

CEA is interested in radiative transfer induced by hypersonic flow for the study of extern layer ablation phenomena. Material ablation during atmospheric re-entry generally depends on object shape, incidence angle, speed and atmospheric composition at actual altitude. To improve the knowledge of these aero-thermo-chemical phenomena, we use specific instrument inside representative flying object. For this, we must observe the emission of certain chemical components in the shock layer through spectrometric measurements in the visible range. In this paper, we present a characterisation of two commercial spectrometers of Ocean Optics and Avantes trademark. Some tests we made in vibration and acceleration were representative of the different phase of the life cycle of these instruments in a ballistic flight environment. Then, temperature and saturation effects are observed according to the photoelectrical performances of the spectrometer and a transfer function model is proposed. At last, spectrometers have shown they could withstand these harsh environments.

Paper Details

Date Published: 1 November 2005
PDF: 12 pages
Proc. SPIE 5998, Sensors for Harsh Environments II, 599804 (1 November 2005); doi: 10.1117/12.627005
Show Author Affiliations
Philippe Millier, CEA DAM île de France (France)
Ronan Le Borne, CEA DAM île de France (France)
David Durand, CEA DAM île de France (France)
Vincent Plano, CEA CESTA (France)
Catherine Canac, CEA CESTA (France)
Laurent Segard, CEA CESTA (France)
Renaud Monestier, CEA CESTA (France)

Published in SPIE Proceedings Vol. 5998:
Sensors for Harsh Environments II
Anbo Wang, Editor(s)

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