[Instrument de mesure à visualisation directe en 3D et temps réel du champ électromagnétique]
De nombreux terminaux sont actuellement proposés aux usagers nomades. Ces équipements sont souvent dotés d'une capacité de communication sans fil fonctionnant entre un et quelques GHz. Pour des raisons techniques, dont l'accès multiple au canal de transmission et l'autonomie des batteries embarquées, ces terminaux n'émettent que de brèves fractions du temps, sous la forme de salves d'émission. Afin d'observer directement certaines caractéristiques des signaux rayonnés par ces équipements, peu d'appareillages de mesure s'avèrent disponibles. Cet article décrit un nouveau système de visualisation temps réel du champ électromagnétique émis. Le prototype de validation utilise un réseau de sondes maintenues régulièrement espacées sur une boucle isolante mise en rotation rapide autour de l'équipement sous test.
Nowadays, a wide variety of terminals are proposed to nomadic users. Generally these terminals provide wireless communication operating at frequencies between one and a few GHz. For technical reasons, including multiple access to the communication channel and battery autonomy, these terminals transmit only during very short periods i.e. transmission bursts. For a direct observation of certain characteristics of the transmitted signals radiated by such terminals, only a few measurement setups exist. This article proposes such a novel real-time 3D electromagnetic field measurement instrument with direct visualization. The prototype used for validation is based on an array of probes regularly attached on a non-conductive rigid loop which is put into fast rotation around the terminal under test.
Mot clés : Diagramme de rayonnement d'antennes, Compatibilité électromagnétique, Mesure de champ électrique, Rayonnement transitoire, Equipement de mesure, Sonde
Jean Rioult 1 ; Marc Heddebaut 1 ; Divitha Seetharamdoo 1 ; Virginie Deniau 1
@article{CRPHYS_2009__10_1_13_0,
author = {Jean Rioult and Marc Heddebaut and Divitha Seetharamdoo and Virginie Deniau},
title = {Real-time {3D} electromagnetic field measurement instrument with direct visualization},
journal = {Comptes Rendus. Physique},
pages = {13--21},
publisher = {Elsevier},
volume = {10},
number = {1},
year = {2009},
doi = {10.1016/j.crhy.2008.12.006},
language = {en},
}
TY - JOUR AU - Jean Rioult AU - Marc Heddebaut AU - Divitha Seetharamdoo AU - Virginie Deniau TI - Real-time 3D electromagnetic field measurement instrument with direct visualization JO - Comptes Rendus. Physique PY - 2009 SP - 13 EP - 21 VL - 10 IS - 1 PB - Elsevier DO - 10.1016/j.crhy.2008.12.006 LA - en ID - CRPHYS_2009__10_1_13_0 ER -
%0 Journal Article %A Jean Rioult %A Marc Heddebaut %A Divitha Seetharamdoo %A Virginie Deniau %T Real-time 3D electromagnetic field measurement instrument with direct visualization %J Comptes Rendus. Physique %D 2009 %P 13-21 %V 10 %N 1 %I Elsevier %R 10.1016/j.crhy.2008.12.006 %G en %F CRPHYS_2009__10_1_13_0
Jean Rioult; Marc Heddebaut; Divitha Seetharamdoo; Virginie Deniau. Real-time 3D electromagnetic field measurement instrument with direct visualization. Comptes Rendus. Physique, Volume 10 (2009) no. 1, pp. 13-21. doi : 10.1016/j.crhy.2008.12.006. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2008.12.006/
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