Crossfield response of industrial magnetic sensors

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00315076" target="_blank" >RIV/68407700:21230/17:00315076 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3233/JAE-172256" target="_blank" >http://dx.doi.org/10.3233/JAE-172256</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3233/JAE-172256" target="_blank" >10.3233/JAE-172256</a>

Result language

angličtina

Original language name

Crossfield response of industrial magnetic sensors

Original language description

Magnetic sensors used for non-destructive testing, metal detection and other applications are subjected to large perpendicular field. In this paper we show that the existing models describing the response of anisotropic magnetoresistors (AMR) cannot be used for fields larger than the critical value, which is 350 μT for the Honeywell HMC1001. This critical value is one order of magnitude lower than the anisotropy field and it is decreasing with increased value of the measured field. From our findings it is clear that AMR sensors cannot be safely used in applications in which fields above 250 μT can appear. Neither flipping, nor feedback compensation can compensate for this error. We show that this behaviour is caused by the fact that the single-domain state of the AMR is broken at the mentioned critical field. Compared to that, fluxgate sensors including microfluxgates are by principle immune against the crossfield. Unlike in AMR, crossfield sensitivity in fluxgate sensors is second-order effect, which can be kept under control by proper design. We show that even crossfield of 10 mT does not cause significant degradation of the sensor precision.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/GA17-19877S" target="_blank" >GA17-19877S: New methods for the measurement of electric currents</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Name of the periodical

International Journal of Applied Electromagnetics and Mechanics

ISSN

1383-5416

e-ISSN

1875-8800

Volume of the periodical

55

Issue of the periodical within the volume

S1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

39-47

UT code for WoS article

000413295100006

EID of the result in the Scopus database

2-s2.0-85031778320