Cross-field Effect in a Triaxial AMR Magnetometer with Vector and Individual Compensation of a Measured Magnetic Field

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00304004" target="_blank" >RIV/68407700:21230/17:00304004 - isvavai.cz</a>

Výsledek na webu

<a href="http://ieeexplore.ieee.org/document/7589024/" target="_blank" >http://ieeexplore.ieee.org/document/7589024/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TMAG.2016.2617121" target="_blank" >10.1109/TMAG.2016.2617121</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cross-field Effect in a Triaxial AMR Magnetometer with Vector and Individual Compensation of a Measured Magnetic Field

Popis výsledku v původním jazyce

Magnetic field sensors based on anisotropic magnetoresistance (AMR) are widely used in many scientific and industrial applications. The AMR sensor sensitivity is superior to Hall probes and size and power consumption is superior to fluxgates. However, the noise properties and temperature stability of AMR sensors are typically worse than for fluxgates. These properties define the typical applications - less precise vectorial or gradient measurements of the magnetic field within <±1 mT range. AMR sensors are typically calibrated for sensitivity, offset, and orthogonality errors. However, there is another important source of error - sensitivity to the magnetic field applied in the perpendicular direction to the measurement axis. This so-called cross-field error is inherent to AMR sensors and can influence the measurements significantly. Flipping (set/reset pulses) and closed-loop operation of the sensor can reduce the cross-field error. In our paper, we present a novel approach of using full vectorial compensation of the measured magnetic field resulting in a complete elimination of the cross-field effect. The vectorial compensation provided superior results over alternative approaches that were also evaluated.

Název v anglickém jazyce

Cross-field Effect in a Triaxial AMR Magnetometer with Vector and Individual Compensation of a Measured Magnetic Field

Popis výsledku anglicky

Magnetic field sensors based on anisotropic magnetoresistance (AMR) are widely used in many scientific and industrial applications. The AMR sensor sensitivity is superior to Hall probes and size and power consumption is superior to fluxgates. However, the noise properties and temperature stability of AMR sensors are typically worse than for fluxgates. These properties define the typical applications - less precise vectorial or gradient measurements of the magnetic field within <±1 mT range. AMR sensors are typically calibrated for sensitivity, offset, and orthogonality errors. However, there is another important source of error - sensitivity to the magnetic field applied in the perpendicular direction to the measurement axis. This so-called cross-field error is inherent to AMR sensors and can influence the measurements significantly. Flipping (set/reset pulses) and closed-loop operation of the sensor can reduce the cross-field error. In our paper, we present a novel approach of using full vectorial compensation of the measured magnetic field resulting in a complete elimination of the cross-field effect. The vectorial compensation provided superior results over alternative approaches that were also evaluated.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/TE02000202" target="_blank" >TE02000202: Pokročilé senzory a metody zpracování senzorových dat</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Magnetics

ISSN

0018-9464

e-ISSN

1941-0069

Svazek periodika

53

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

000403474100013

EID výsledku v databázi Scopus

2-s2.0-85016323878