A new portable ELF Schumann resonance receiver: design and detailed analysis of the antenna and the analog front-end

Schumann resonance oscillation detection is a complex procedure which requires customized and high-quality measurement systems. The primary objective of this work was to design and implement a stand-alone, portable, and low-cost receiver able to measure as much Schumann resonance harmonics as possib...

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Bibliographic Details
Published in:EURASIP journal on wireless communications and networking 2018-06, Vol.2018 (1), p.1-12, Article 155
Main Authors: Votis, Constantinos I., Tatsis, Giorgos, Christofilakis, Vasilis, Chronopoulos, Spyridon K., Kostarakis, Panos, Tritakis, Vasilis, Repapis, Christos
Format: Article
Language:English
Subjects:
Amplification
Amplifier
Analog front-end
Coiling
Communications Engineering
Design analysis
Electromagnetic induction
Engineering
Filter
Induction coils
Information Systems Applications (incl.Internet)
Magnetic induction
Magnetic resonance
Networks
Portability
Quality assessment
Receivers & amplifiers
Receiving antenna
Schumann resonance measurements
Schumann resonances
Signal,Image and Speech Processing
System testing
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Summary:Schumann resonance oscillation detection is a complex procedure which requires customized and high-quality measurement systems. The primary objective of this work was to design and implement a stand-alone, portable, and low-cost receiver able to measure as much Schumann resonance harmonics as possible. Design, as well as detailed analysis of the efficient induction coil magnetic antenna and the low-noise amplifying-filtering chain, is presented. The detection system includes two coils back to back, resulting in a total coil length of 60 cm. The filtering and amplification chain exhibits an experimentally measured total passband gain equal to 112 dB at 10 Hz and as low as 2.88 nV/ √ Hz equivalent input noise. In order to validate the new portable ELF Schumann resonance detection and monitoring system, we took measurements at various spots “relatively” free from man-made electromagnetic pollution. Results have shown very clear Schumann resonance peaks for the first six modes with 10-min acquisition time.
ISSN:1687-1499
1687-1472
1687-1499
DOI:10.1186/s13638-018-1157-7