A system for controllable magnetic measurements of hysteresis and Barkhausen noise

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00461354" target="_blank" >RIV/68378271:_____/16:00461354 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/TIM.2015.2494621" target="_blank" >http://dx.doi.org/10.1109/TIM.2015.2494621</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TIM.2015.2494621" target="_blank" >10.1109/TIM.2015.2494621</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A system for controllable magnetic measurements of hysteresis and Barkhausen noise

Popis výsledku v původním jazyce

A specially developed setup for precise measurement of magnetic hysteresis and Barkhausen noise is presented. The setup combines two main features: 1) an accurate local determination of the magnetic field and 2) an improved feedback control of the magnetization process. The magnetic field is measured by two Hall sensors at different distances above the sample. The sample field is determined by a linear extrapolation of these measured profiles of the tangential fields to the sample surface. A digital feedback loop for precise control of the ac magnetization process is proposed. The feedback algorithm combines two methods of magnetizing signal adjustment: linear corrections of the magnetizing voltage amplitude and phase. The presented system is able to adjust the waveform of the magnetic induction or field to the prescribed sinusoidal or triangular shape. This provides stable and physically accurate results, which are independent of a specific experimental configuration.

Název v anglickém jazyce

A system for controllable magnetic measurements of hysteresis and Barkhausen noise

Popis výsledku anglicky

A specially developed setup for precise measurement of magnetic hysteresis and Barkhausen noise is presented. The setup combines two main features: 1) an accurate local determination of the magnetic field and 2) an improved feedback control of the magnetization process. The magnetic field is measured by two Hall sensors at different distances above the sample. The sample field is determined by a linear extrapolation of these measured profiles of the tangential fields to the sample surface. A digital feedback loop for precise control of the ac magnetization process is proposed. The feedback algorithm combines two methods of magnetizing signal adjustment: linear corrections of the magnetizing voltage amplitude and phase. The presented system is able to adjust the waveform of the magnetic induction or field to the prescribed sinusoidal or triangular shape. This provides stable and physically accurate results, which are independent of a specific experimental configuration.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-18993S" target="_blank" >GA13-18993S: Vývoj a testování nových soustav pro měření magnetického Barkhausenova šumu při kontrolovaných magnetizačních podmínkách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Instrumentation and Measurement

ISSN

0018-9456

e-ISSN

—

Svazek periodika

65

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1087-1097

Kód UT WoS článku

000374892500016

EID výsledku v databázi Scopus

2-s2.0-84947997252