MICRO MAGNETIC THIN-FILM SENSOR USING LC RESONANCE

Authors
TAKEZAWA M KIKUCHI H ISHIYAMA K YAMAGUCHI M ARAI KI
Citation
M. Takezawa et al., MICRO MAGNETIC THIN-FILM SENSOR USING LC RESONANCE, IEEE transactions on magnetics, 33(5), 1997, pp. 3400-3402
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
33
Issue
5
Year of publication
1997
Part
1
Pages
3400 - 3402
Database
ISI
SICI code
0018-9464(1997)33:5<3400:MMTSUL>2.0.ZU;2-3
Abstract
This paper reports the performance of a new micro magnetic thin-film m agnetic field sensor, which makes use of LC resonance of the sensor el ement as well as the impedance change due to the permeability change o f the magnetic film. A large impedance change of 105% was achieved at a carrier frequency of 100 MHz. The large change was realized when the LC resonance frequency of the sensor element was lower than the frequ ency at which the eddy-current losses increased.