Abstract: Disclosed are improved methods and apparatus for determining a kinetic parameter of a sample via thermogravimetry. According to the methods, accuracy of the measured parameter is improved and made less susceptible to noise across a temperature range, in particular at near-zero values of the rate of change of the weight of the sample. The disclosed methods avoid taking a logarithm of the first derivative of a thermogravimetric signal related to the sample weight detected during the experiment.

Abstract: A method for conducting a differential thermal analysis, in which a sample disposed in a temperable sample space is tempered according to an essentially linear temperature program extending from a start temperature to an end temperature, such that, from the result of a measurement of the sample temperature conducted during tempering at a number of measurement time points, a DTA signal is calculated as the difference between a measured sample temperature and a reference temperature calculated according to a temperature curve model. According to the invention, for every measurement time point, the relevant reference temperature is calculated by the following steps: (a) establish a time interval containing the relevant measurement time point; (b) calculate a non-linear adjustment function for the measured sample temperature curve in the time interval; and (c) calculate the reference temperature as a value of the adjustment function for the measurement time point.

Abstract: A temperature-control device for thermoanalytical analyses, including a housing, one heating element, one protective sheath disposed in the housing, wherein the protective sheath is connectable to a gas supply. The heating element is partially arranged inside the protective sheath.

Abstract: A thermal analysis apparatus and method, including a sample space with a sample carrier, and heating devices, and an inert gas. Flow devices generate an inert gas flow to the sample carrier. Getter devices and/or oxygen traps disposed in the inert gas flow remove residual oxygen.

Abstract: The present invention relates to a device for detecting the thermal conductivity by application of optical pulse techniques. A sample preheated in a furnace is exposed to energy by means of an optical pulse. The temperature profile in the sample is recorded by means of an infrared sensor. The thermal conductivity of the sample can then be detected by mathematical derivation. To reduce tho influence of the time history of the optical pulse on measurement, a measuring means is provided for determining this history, An analyzer unit then derives therefrom the corrected temperature profile.