METHOD OF MEASURING THERMAL EFFECTS USING DIFFERENTIAL MODULATION SCANNING CALORIMETER AND CALORIMETER THEREFOR Russian patent published in 2014 - IPC G01K17/00 G01N25/20 

FIELD: physics.

SUBSTANCE: two identical test samples are placed in the chambers of a differential calorimeter and modulating action is applied on the calorimeter chambers differentially. As a result, detected thermal effects caused by the reverse component of the reaction of the samples to the modulating effect are summed, thereby increasing sensitivity. The calorimeter for carrying out the disclosed method employs a calorimeter thermal arrangement with thermal flux compensation. The device has chambers which are equipped with temperature sensors in form of thermocouples, one of the materials of which is the material of the chamber itself and remote separate LED based heaters. The disclosed system of selecting the reverse component of thermal effect using synchronous detectors outputs a signal containing full information on the amplitude and phase of the selected reversible component.

EFFECT: high sensitivity and accuracy of measurements using a modulation method.

2 cl, 2 dwg