Design validation of MicroMED, a particle analyzer for ExoMars 2020

Scaccabarozzi, Diego; Saggin, Bortolino; Somaschini, Riccardo; Magni, Marianna; Valnegri, Pietro; Valiesfahani, Arash; Tarabini, Marco; Esposito, F.; Molfese, C.; Cortecchia, Fausto; Cozzolino, Fabio; Mongelluzzo, Giuseppe; Brienza, Daniele; Rico, Alberto Martin Ortega; Rodríguez, Iliana Otero

doi:10.1109/metroaerospace.2019.8869666

Cited by 5 publications

(1 citation statement)

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“…The optical particle counter MicroMED (Figure 1) [1,2,3,4,5] is conceived to provide the first ever in situ measurements of airborne dust in Martian atmosphere. The sensor will be part of the upcoming ExoMars 2020 mission, and it is a miniaturized version of the sensor MEDUSA [6,7], previously developed at the INAF (Istituto Nazionale di AstroFisica) Astronomical Observatory of Capodimonte (OAC) in Naples, Italy, where the characterization of dust in Earth and planetary atmospheres has been the main focus of the research activities for years [8,9,10,11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Design and CFD Analysis of the Fluid Dynamic Sampling System of the “MicroMED” Optical Particle Counter

Mongelluzzo

Esposito

Cozzolino

et al. 2019

Sensors

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MicroMED is an optical particle counter that will be part of the ExoMars 2020 mission. Its goal is to provide the first ever in situ measurements of both size distribution and concentration of airborne Martian dust. The instrument samples Martian air, and it is based on an optical system that illuminates the sucked fluid by means of a collimated laser beam and detects embedded dust particles through their scattered light. By analyzing the scattered light profile, it is possible to obtain information about the dust grain size and speed. To do that, MicroMED’s fluid dynamic design should allow dust grains to cross the laser-illuminated sensing volume. The instrument’s Elegant Breadboard was previously developed and tested, and Computational Fluid Dynamic (CFD) analysis enabled determining its criticalities. The present work describes how the design criticalities were solved by means of a CFD simulation campaign. At the same time, it was possible to experimentally validate the results of the analysis. The updated design was then implemented to MicroMED’s Flight Model.

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