Open AccessThe Capacitive Magnetic Field Sensor
Author(s) -
Denis Zyatkov,
A. V. Yurchenko,
Vladimir Balashov,
V. I. Yurchenko
Publication year - 2016
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/671/1/012065
Subject(s) - ferrofluid , magnetic field , capacitive sensing , materials science , sensitivity (control systems) , condensed matter physics , capacitance , dielectric , magnetic nanoparticles , nuclear magnetic resonance , optoelectronics , electrical engineering , physics , electronic engineering , nanotechnology , nanoparticle , electrode , engineering , quantum mechanics
The results of a study of sensitive element magnetic field sensor are represented in this paper. The sensor is based on the change of the capacitance with an active dielectric (ferrofluid) due to the magnitude of magnetic field. To prepare the ferrofluid magnetic particles are used, which have a followingdispersion equal to 50 < [the empty set] <= 56, 45 < [the empty set] <= 50, 40 < [the empty set] <=45 and [the empty set] <= 40 micron of nanocrystalline alloy of brand 5BDSR. The dependence of the sensitivity of the capacitive element from the ferrofluid with different dispersion of magnetic particles is considered. The threshold of sensitivity and sensitivity of a measuring cell with ferrofluid by a magnetic field was determined. The experimental graphs of capacitance change of the magnitude of magnetic field are presented