Effect of stress-induced anisotropy on the noise of ring-core fluxgate

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00448911" target="_blank" >RIV/68378271:_____/15:00448911 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21230/15:00223672

Result on the web

<a href="http://dx.doi.org/10.1109/TMAG.2014.2358793" target="_blank" >http://dx.doi.org/10.1109/TMAG.2014.2358793</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TMAG.2014.2358793" target="_blank" >10.1109/TMAG.2014.2358793</a>

Result language

angličtina

Original language name

Effect of stress-induced anisotropy on the noise of ring-core fluxgate

Original language description

In this paper, we show how an anisotropy perpendicular to the direction of excitation is favorable to obtain low noise in fluxgate sensors. We produced ring cores by electroplating NiFe thin film (6 μ m) over a bended copper substrate. After the electroplating process, the sample was released and back-stress-induced anisotropy in the magnetic film due to magnetostriction of the material. As a result, we obtained rings with regions showing hard behavior and orthogonal regions showing soft behavior. Then, we used such rings as core for fluxgate and measured both noise and sensitivity for different orientation of the ring in the pick-up coil. When the pick-up coil covers the area with anisotropy perpendicular to the direction of excitation, the sensitivity is lower due to lower permeability, but finally, the noise is lower. On the other hand, rotating the core by 90°, the anisotropy becomes parallel to the direction of excitation and thus the sensitivity increases.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JB - Sensors, detecting elements, measurement and regulation

OECD FORD branch

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Project

<a href="/en/project/GAP102%2F12%2F2177" target="_blank" >GAP102/12/2177: Nanostructured soft magnetic materials for sensors</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

IEEE Transactions on Magnetics

ISSN

0018-9464

e-ISSN

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Volume of the periodical

51

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

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UT code for WoS article

000349446800030

EID of the result in the Scopus database

2-s2.0-84922751112