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US 5,702,185 AGranted
Heat flow transducer
AssigneeP. A. Hilton Limited
InventorMorgan Heikal
Life of this patent
Estimating the term…
Abstract
A heat flow transducer comprises one or more thermoelectric cooler (TEC) devices mounted in a core of heat resistant material which is subjected to the heat flow to be measured. Multiple TECs are thermally in parallel and electrically in series.
Claims15
A heat flow transducer in combination with a specimen material for measuring thermal conductivity of the specimen material, said transducer being located thermally in series with said specimen material, said transducer comprising:
- a core of heat resistive material having opposed faces, comprising a first heat flow path;
- two heat conductive plates in thermal contact with the opposed faces;
- at least one thermoelectric cooler set into a corresponding aperture in the core comprising at least one thermal resistance comprising a second heat flow path between the conductive plates in parallel with the first heat flow path;
- and
- electrical interconnections to said at least one thermoelectric cooler to derive an electrical response to a thermal flux through the transducer from one plate to the other, said heat resistive material having a selected thermal conductivity, said selected thermal conductivity comprising a means for adjusting the heat flow sensitivity of said transducer.
2 more elements
A heat flow transducer for measuring thermal conductivity of a specimen material, said transducer comprising:
- a core of heat resistive material having opposed faces, comprising a first heat flow path;
- two heat conductive plates in thermal contact with the opposed faces;
- at least one thermoelectric cooler set into a corresponding aperture in the core comprising at least one thermal resistance comprising a second heat flow path between the conductive plates in parallel with the first heat flow path, each said at least one thermoelectric cooler comprising a matrix of semiconductor thermoelectric couples connected electrically in series and thermally in parallel;
- and
- electrical interconnections to said at least one thermoelectric cooler to derive an electrical response to a thermal flux through the transducer from one plate to the other, said heat resistive material having a selected thermal conductivity, said selected thermal conductivity comprising a means for adjusting the heat flow sensitivity of said transducer.
2 more elements
Dependencies are inferred from the claim text.