A fast-response thin film thermocouple to measure rapid surface temperature changes

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DOIResolve DOI: http://doi.org/10.1016/j.expthermflusci.2005.05.004
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TypeArticle
Journal titleExperimental Thermal and Fluid Science
ISSN0894-1777
Volume30
Issue2
Pages153159; # of pages: 7
AbstractA thin film thermocouple has been developed to measure rapid surface temperature change. A fine wire of Constantan was inserted vertically into a hole drilled through a steel plate and held in place by ceramic cement that acted as an electrical insulator. A thin conductive film was deposited on the surface to provide an electrical connection between the steel substrate and the thermoelectric wire. The voltage difference between this junction and a second junction kept in an ice bath was calibrated as a function of the surface temperature. Tests showed that the thin film sensors could detect a temperature rise of over 200 °C in less than 10 ns produced by a laser pulse focused on the junction. The sensors were also used to measure transient surface temperature distribution under an impacting droplet of molten aluminum.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21272515
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Record identifier105f1c51-f500-4cad-bb63-d7d2b7d85f72
Record created2014-12-01
Record modified2016-05-09
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