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US 4,308,008 AGranted
Method for differential thermal analysis
AssigneeBayer Aktiengesellschaft
InventorGunter Hentze
Life of this patent
Estimating the term…
Abstract
A method for differential thermal analysis and a furnace which is suitable for analytical measurements is heated by radiation. For this purpose, a radiation source whose radiation is absorbed by the furnace wall is arranged near to the furnace. The furnace is preferably formed as a hollow cylinder which surrounds the radiation source. An incandescent coil may, for example, be used as the radiation source.
Claims2
In a method for differential thermal analysis, the improvement comprising:
- providing a furnace having a overall heat capacity in the range of 0.5 to 10 cal./.degree.C. including a hollow cylindrical furnace element;
- heating the furnace element directly by radiation emitted from an incandescent lamp disposed in the hollow thereof;
- monitoring the temperature at the surface of the furnace element on which samples are placed by temperature sensors attached to the outside of the furnace element,
- controlling the temperature at the surface of the furnace element by a regulatable power supply regulated in response to the monitored temperature, and
- enclosing the lamp, cylindrical element and temperature sensors in the container with an inert atmosphere therein.
2 more elements
Dependencies are inferred from the claim text.