Thermal measuring and testing – Determination of inherent thermal property
Patent
1986-12-29
1989-06-20
Yasich, Daniel M.
Thermal measuring and testing
Determination of inherent thermal property
324 73PC, G01N 2718, G01R 3126
Patent
active
048404950
ABSTRACT:
The measuring apparatus (10) according to the invention includes a hot source (14) and a cold source (18), each provided with a thermocouple (21, 22) and connected via a solid bar (17) of copper that is in contact with the hot source and is spaced apart from the cold source by a regulatable distance (19). The measuring method is based on calculating the thermal resistance R=(T1-T2)/Q, where T1-T2 and Q are, respectively, the temperature difference and the thermal flux between the sources. R1 is calculated with the element (11), then R2 is calculated without the element (11). The difference R1-R2 gives the thermal resistance of the element.
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Bull S.A.
Yasich Daniel M.
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