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Demonstrating the Barkhausen effect with high signal-to-noise ratio.

Authors :
Jan-Peter Meyn
Source :
European Journal of Physics. Jul2017, Vol. 38 Issue 4, p1-1. 1p.
Publication Year :
2017

Abstract

The Barkhausen effect can be impaired by various noise sources. These are avoided by a hum-bucking coil, earthing, a preamplifier with carefully chosen bandwidth, and matching the input resistor to the inductance of the coil. The present setup is suitable for lecture hall demonstration in higher education institutes. [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
*BARKHAUSEN effect
*FERROMAGNETISM
*NOISE
*PREAMPLIFIERS
*BANDWIDTHS

Details

Language :
English
ISSN :
01430807
Volume :
38
Issue :
4
Database :
Academic Search Index
Journal :
European Journal of Physics
Publication Type :
Academic Journal
Accession number :
123598732
Full Text :
https://doi.org/10.1088/1361-6404/aa6e30
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