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US 6,318,890 B1Granted
Single cell calorimeter
AssigneeMettler-Toledo AG
InventorsThomas Hütter, Urs Jörimann
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Abstract
A heat flow calorimeter comprises a single sample holder (5) in thermal contact with a heat source (1). A temperature difference over mutually spaced locations (11, 12) along a heat flow path between sample (23) and heat source (1) is measured. The measured signal (24, 25) is combined with a compensation signal from a signal source (34) to derive a compensated temperature difference signal representative of the net heat flow to sample (23), (FIG. 1).
Claims11
A single cell calorimeter comprising:
- a heat source;
- a sample holder having a sample position thermally coupled to said heat source to thereby establish a heat flow path for a flow of heat between said heat source and a sample in said sample position;
- a controller for controlling the amount of heating by said heat source;
- means for measuring a first temperature difference between at least two locations spaced at a distance along said heat flow path to thereby provide a measured temperature difference signal;
- signal source means for providing a compensation signal representative of a flow of heat along said heat flow path when a sample is not located at said sample position;
- and
- means for evaluating said flow of heat between said sample in said sample position and said heat source on the basis of said measured temperature difference signal and said compensation signal.
4 more elements
Dependencies are inferred from the claim text.