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US 4,232,543 AGranted
Device for measuring thermal conductivity of liquids
AssigneePresident of Kyoto University
InventorsWataru Eguchi, Makoto Harada, Masataka Tanigaki, Yutaka Tada
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Abstract
An apparatus for measuring thermal conductivity of a desired sample liquid, even of a transparent sample liquid, on the basis of thermal diffusion to the sample liquid from a small and thin metal disc which is heated by laser flash. The sample liquid is inserted within a small gap which is formed between the metal disc and a sample holding block, and the thermal diffusion can be measured by a thermocouple connected to the metal disc.
Claims7
A device for measuring thermal conductivity of liquids, comprising:
- a thin and small metal disc to be heated by a laser flash;
- a sample holding block located beneath said metal disc;
- and
- a pair of thermocouple wires connected to said metal disc to measure the thermal conductivity of a sample liquid on the basis of thermal diffusion from said metal disc to a cylindrical layer of said sample liquid inserted between said metal disc and said sample holding block;
- said metal disc being supported in a horizontal position by said pair of thermocouple wires and at least one auxiliary support filament.
2 more elements
Dependencies are inferred from the claim text.