Temperature stability and compensation of AMR sensors in practical applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0200456" target="_blank" >RIV/00216305:26220/26:0200456 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1434841125004236" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1434841125004236</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aeue.2025.156082" target="_blank" >10.1016/j.aeue.2025.156082</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature stability and compensation of AMR sensors in practical applications

Popis výsledku v původním jazyce

Magnetic field sensors are widely used in smart electronic systems for transportation, structural health monitoring, current sensing, geomagnetic navigation, and other applications. Among various sensor types, anisotropic magnetoresistance (AMR) sensors are often selected for their compact size, high sensitivity, and low cost. However, their performance is significantly affected by temperature-induced drift in magnetic field measurements. This study evaluates the temperature stability of three AMR sensors - LSM303AGR, LIS3MDL, QMC5883L - and a fluxgate sensor, DRV425. Results show that LSM303AGR demonstrates the best temperature stability in magnetic fields under 100 mu T, with an average drift of 24.8 nT/K, and a sensitivity drift of -488 ppm/K, while LIS3MDL is suitable for measuring stronger fields due to its linear temperature characteristic despite a higher drift of 152.9 nT/K. Sensor measurement drift amounts to 12 % to 76 % of magnetic field threshold over a 50 degrees C range in practical reference application (10 mu T), but algorithmic compensation using application-specific or diverse datasets can reduce drift to as low as 4.9-7.9 % of the reference threshold in fields under 100 mu T. These findings highlight the importance of tailored compensation strategies when using AMR sensors for reliable longterm magnetic field monitoring.

Název v anglickém jazyce

Temperature stability and compensation of AMR sensors in practical applications

Popis výsledku anglicky

Magnetic field sensors are widely used in smart electronic systems for transportation, structural health monitoring, current sensing, geomagnetic navigation, and other applications. Among various sensor types, anisotropic magnetoresistance (AMR) sensors are often selected for their compact size, high sensitivity, and low cost. However, their performance is significantly affected by temperature-induced drift in magnetic field measurements. This study evaluates the temperature stability of three AMR sensors - LSM303AGR, LIS3MDL, QMC5883L - and a fluxgate sensor, DRV425. Results show that LSM303AGR demonstrates the best temperature stability in magnetic fields under 100 mu T, with an average drift of 24.8 nT/K, and a sensitivity drift of -488 ppm/K, while LIS3MDL is suitable for measuring stronger fields due to its linear temperature characteristic despite a higher drift of 152.9 nT/K. Sensor measurement drift amounts to 12 % to 76 % of magnetic field threshold over a 50 degrees C range in practical reference application (10 mu T), but algorithmic compensation using application-specific or diverse datasets can reduce drift to as low as 4.9-7.9 % of the reference threshold in fields under 100 mu T. These findings highlight the importance of tailored compensation strategies when using AMR sensors for reliable longterm magnetic field monitoring.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2026

Kód důvěrnosti údajů

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

Název periodika

AEÜ. International journal of electronics and communications

ISSN

1434-8411

e-ISSN

1618-0399

Svazek periodika

203

Číslo periodika v rámci svazku

January 2026

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

001601033900002

EID výsledku v databázi Scopus

2-s2.0-105018907479