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Titre du document / Document title

Effect of magnetic field dynamics on the copper-constantan thermocouple performance

Auteur(s) / Author(s)

SHIR Farhad ; MAVRIPLIS Catherine ; BENNETT Lawrence H. ;

Résumé / Abstract

This paper presents some results of experimental research addressing the influence of magnetic. field dynamics on the copper-constantan thermocouple performance. There are challenges in measuring temperature by thermocouples in a time-dependent magnetic field. Although there is considerable experience on the effect of a static magnetic field, there is a lack of awareness of the outcome of a varying field on thermocouple performance. We measured the accuracy of the thermocouple response in an alternating magnetic field for various operational parameters: frequency of the magnetic field, geometry, and length of the thermocouple wire in the field, and magnetic field strength. The effect of each of the operational parameters is discussed. Test results of temperature profile measure by a copper-constantan thermocouple in a varying magnetic field system that was used in a room temperature magnetic refrigeration test bed are demonstrated.

Revue / Journal Title

Instrumentation science & technology    ISSN  1073-9149 

Source / Source

2005, vol. 33, no6, pp. 661-671 [11 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Taylor & Francis, Philadelphia, PA, ETATS-UNIS  (1994) (Revue)

Mots-clés d'auteur / Author Keywords

Thermocouple performance

;

Magnetocaloric temperature

;

Magnetic field temperature measurement

;

Localisation / Location

INIST-CNRS, Cote INIST : 14080, 35400013511218.0030

Nº notice refdoc (ud4) : 17272366



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