ELF magnetic field receiver: frequency performance and natural signals detection

This article presents the analog stage analysis of an extremely low frequency (ELF) magnetic field receiver. Details are described about the characterization and modeling of the antenna used, as well as the frequency behavior of the system. To achieve higher sensitivity, a coil was manufactured with...

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Autores principales:	Carducci, Leonardo Martín, Alfonso, Ramiro, Fano, Walter Gustavo
Formato:	Artículo publishedVersion
Lenguaje:	Inglés
Publicado:	FIUBA 2021
Materias:	Loop antenna ELF magnetic fields acquisition system Schumann resonance
Acceso en línea:	https://elektron.fi.uba.ar/elektron/article/view/135 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=135_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-135_oai
record_format	dspace
spelling	I28-R145-135_oai2026-02-11 Carducci, Leonardo Martín Alfonso, Ramiro Fano, Walter Gustavo 2021-12-15 This article presents the analog stage analysis of an extremely low frequency (ELF) magnetic field receiver. Details are described about the characterization and modeling of the antenna used, as well as the frequency behavior of the system. To achieve higher sensitivity, a coil was manufactured with a considerably high inductance (800 H), in addition to a high-gain amplification stage (88 dB). An equivalent circuit model was defined for the antenna, and its parasitic elements were determined by laboratory measurements and computational approximations. The acquisition system has a digitization stage with a sampling frequency of 100 Hz. To study its behavior against possible aliasing effects, an analysis of the analog stage in the frequency domain was carried out, determining the optimal operating conditions. Field tests of the equipment were carried out in the mountains of Villa Alpina, Cordoba, Argentina. Taking into account that the system was designed for the measurement and study of natural electromagnetic phenomena in the ELF band, the first six Schumann resonances have been successfully captured and detected. En este artículo se presenta el análisis de la etapa analógica de un receptor de campo magnético para frecuencias extremadamente bajas (ELF). Se describen detalles sobre la caracterización y modelado de la antena utilizada, así como el comportamiento en frecuencia del sistema. Para lograr una mayor sensibilidad, se fabricó una bobina con una inductancia considerablemente alta (800 H), además de una etapa de amplificación de alta ganancia (88 dB). Se definió un modelo de circuito equivalente para la antena y se determinaron sus elementos parásitos mediante mediciones de laboratorio y aproximaciones computacionales. El sistema de adquisición tiene una etapa de digitalización con una frecuencia de muestreo de 100 Hz. Para estudiar su comportamiento frente a posibles efectos de aliasing, se realizó un análisis de la etapa analógica en el dominio de la frecuencia determinando las condiciones óptimas de funcionamiento. Las pruebas de campo del equipo se llevaron a cabo en las sierras de Villa Alpina, Córdoba, Argentina. Teniendo en cuenta que el sistema fue diseñado para la medición y estudio de fenómenos electromagnéticos naturales en la banda ELF, se han logrado detectar con éxito las primeras seis resonancias de Schumann. application/pdf text/html https://elektron.fi.uba.ar/elektron/article/view/135 10.37537/rev.elektron.5.2.135.2021 eng FIUBA https://elektron.fi.uba.ar/elektron/article/view/135/263 https://elektron.fi.uba.ar/elektron/article/view/135/266 Derechos de autor 2021 Leonardo Martín Carducci Elektron Journal; Vol. 5 No. 2 (2021); 105-111 Revista Elektron; Vol. 5 Núm. 2 (2021); 105-111 Revista Elektron; v. 5 n. 2 (2021); 105-111 2525-0159 2525-0159 Loop antenna ELF magnetic fields acquisition system Schumann resonance ELF magnetic field receiver: frequency performance and natural signals detection Receptor ELF de campo magnético: desempeño en frecuencia y detección de señales naturales info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=135_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
language	Inglés
orig_language_str_mv	eng
topic	Loop antenna ELF magnetic fields acquisition system Schumann resonance
spellingShingle	Loop antenna ELF magnetic fields acquisition system Schumann resonance Carducci, Leonardo Martín Alfonso, Ramiro Fano, Walter Gustavo ELF magnetic field receiver: frequency performance and natural signals detection
topic_facet	Loop antenna ELF magnetic fields acquisition system Schumann resonance
description	This article presents the analog stage analysis of an extremely low frequency (ELF) magnetic field receiver. Details are described about the characterization and modeling of the antenna used, as well as the frequency behavior of the system. To achieve higher sensitivity, a coil was manufactured with a considerably high inductance (800 H), in addition to a high-gain amplification stage (88 dB). An equivalent circuit model was defined for the antenna, and its parasitic elements were determined by laboratory measurements and computational approximations. The acquisition system has a digitization stage with a sampling frequency of 100 Hz. To study its behavior against possible aliasing effects, an analysis of the analog stage in the frequency domain was carried out, determining the optimal operating conditions. Field tests of the equipment were carried out in the mountains of Villa Alpina, Cordoba, Argentina. Taking into account that the system was designed for the measurement and study of natural electromagnetic phenomena in the ELF band, the first six Schumann resonances have been successfully captured and detected.
format	Artículo publishedVersion
author	Carducci, Leonardo Martín Alfonso, Ramiro Fano, Walter Gustavo
author_facet	Carducci, Leonardo Martín Alfonso, Ramiro Fano, Walter Gustavo
author_sort	Carducci, Leonardo Martín
title	ELF magnetic field receiver: frequency performance and natural signals detection
title_short	ELF magnetic field receiver: frequency performance and natural signals detection
title_full	ELF magnetic field receiver: frequency performance and natural signals detection
title_fullStr	ELF magnetic field receiver: frequency performance and natural signals detection
title_full_unstemmed	ELF magnetic field receiver: frequency performance and natural signals detection
title_sort	elf magnetic field receiver: frequency performance and natural signals detection
publisher	FIUBA
publishDate	2021
url	https://elektron.fi.uba.ar/elektron/article/view/135 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=135_oai
work_keys_str_mv	AT carduccileonardomartin elfmagneticfieldreceiverfrequencyperformanceandnaturalsignalsdetection AT alfonsoramiro elfmagneticfieldreceiverfrequencyperformanceandnaturalsignalsdetection AT fanowaltergustavo elfmagneticfieldreceiverfrequencyperformanceandnaturalsignalsdetection AT carduccileonardomartin receptorelfdecampomagneticodesempenoenfrecuenciaydetecciondesenalesnaturales AT alfonsoramiro receptorelfdecampomagneticodesempenoenfrecuenciaydetecciondesenalesnaturales AT fanowaltergustavo receptorelfdecampomagneticodesempenoenfrecuenciaydetecciondesenalesnaturales
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ELF magnetic field receiver: frequency performance and natural signals detection

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