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Circuit de lecture d'un magnétomètre à induction pour l'étude de plasmas atmosphériques sur la mission JUICE

Abstract : Induction magnetometers are used in many fields of scientific exploration from geophysics to astrophysics. In these two fields, the study of the magnetic components of natural electromagnetic waves requires particularly powerful instruments: sensitive and with low intrinsic noises to access magnetic fields of some fT/ . In the case of scientific instruments carried on satellites, constraints on temperature, consumption, congestion and radiation resistance are added to the other constraints. Integrated circuit technologies allow technological breakthrough, which results in a reduction in the size of embedded electronic circuits by a factor greater than 1000, while improving electrical and instrumental performances (reduction in consumption, noise sources, bandwidth and hardening of the electronics). A first thesis at the L2E (A. Rhouni) showed the relevance of a CMOS technology for this type of instrumentation. In this thesis, we describe the study conducted on integrated circuits subject to environmental constraints related to the future missions in which this type of instrument must be embarked (Mission JUICE of ESA). These constraints are becoming more and more severe (radiation dose > 300krad, temperature less than 100 Kelvin ...), taking into account throughout the design process is necessary. A modeling of the effects of these constraints on the components of the integrated circuits technology has been carried out in order to be able to take these effects into account from the design stage. Finally, these models were used to design an induction magnetometer readout circuit for space instrumentation.
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Submitted on : Tuesday, October 9, 2018 - 1:59:07 PM
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Laurent Varizat. Circuit de lecture d'un magnétomètre à induction pour l'étude de plasmas atmosphériques sur la mission JUICE. Electronique. Université Pierre et Marie Curie - Paris VI, 2017. Français. ⟨NNT : 2017PA066536⟩. ⟨tel-01891255⟩

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