Calibration of unipolar high current impulses for resistance spot welding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00345664" target="_blank" >RIV/68407700:21230/20:00345664 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/EPE51172.2020.9269221" target="_blank" >https://doi.org/10.1109/EPE51172.2020.9269221</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/EPE51172.2020.9269221" target="_blank" >10.1109/EPE51172.2020.9269221</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Calibration of unipolar high current impulses for resistance spot welding

Popis výsledku v původním jazyce

Requirement from practice is the need for quality and precise measurement of unipolar high current impulses, which are applied in resistance spot welding. The reason is the high dependence of weld quality on the shape and energy of applied current impulses. A new calibration method for this current impulses without disconnecting the current circuit of a resistance welding machine is required. Review and selection of suitable noninvasive current sensing devices have been made. Frequency analysis of typical unipolar current welding impulses was performed as well. The following measurements of chosen sensing devices with Hall sensors and special magnetoresistance sensor verified the necessary frequency bandwidth of the sensors. Verification measurements of unipolar current impulses were carried out as well. Finally, the uncertainty of the calibration method with a noninvasive current sensing device has been determined.

Název v anglickém jazyce

Calibration of unipolar high current impulses for resistance spot welding

Popis výsledku anglicky

Requirement from practice is the need for quality and precise measurement of unipolar high current impulses, which are applied in resistance spot welding. The reason is the high dependence of weld quality on the shape and energy of applied current impulses. A new calibration method for this current impulses without disconnecting the current circuit of a resistance welding machine is required. Review and selection of suitable noninvasive current sensing devices have been made. Frequency analysis of typical unipolar current welding impulses was performed as well. The following measurements of chosen sensing devices with Hall sensors and special magnetoresistance sensor verified the necessary frequency bandwidth of the sensors. Verification measurements of unipolar current impulses were carried out as well. Finally, the uncertainty of the calibration method with a noninvasive current sensing device has been determined.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

2020 21st International Scientific Conference on Electric Power Engineering (EPE)

ISBN

978-1-7281-9479-0

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

Czechoslovakia Section IEEE

Místo vydání

Prague

Místo konání akce

Prague

Datum konání akce

19. 10. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—