Thermal analysis instrument

Details Thermal analysis instrument Thermal analysis instrument

G - Physics

01

N

G01N 25/20 (2006.01) G01N 25/48 (2006.01)

Patent

CA 2119947

The temperature of a heat reservoir is varied according to a linear function which is AC modulated. At the same time, a temperature difference between two points located in a heat flow path from the heat reservoir to an unknown sample is measured. The temperature difference between two points located in a heat flow path from the heat reservoir to a reference sample is also measured. These two pairs of points are arranged symmetrically. The resulting DSC (differential scanning calorimeter) signals are demodulated, and each signal is divided into an AC component signal and a low-frequency component signal. Using these signals, the DSC signal is separated into a heat capacity component and a latent heat component.

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