Abstract: Some of the embodiments of the present disclosure provide a method for analyzing a substance, where the method includes subjecting the substance to a dynamic excitation to produce an observable response, and determining a characteristic quantity of the substance based on a correlation between the excitation and the response. The correlation between the excitation and the response is expressed by a parametric model for which a specific model structure with a finite number of unspecified parameters is preset. The determining a characteristic quantity of the substance includes calculating the parameters of the model from values of the excitation and the response in a time domain, determining from the calculated parameters a transfer function in a frequency range, and calculating the characteristic quantity directly from the transfer function. Other embodiments are also described and claimed.

Abstract: The invention relates to a method for analyzing substances during which a substance is subjected to an excitation and a corresponding response is observed. The evaluation ensues in such a manner that a parametric model for the correlation between the excitation and the response is predetermined. The model parameters are determined from values of the excitation and from observed values of the response in the time domain. The transfer function is calculated therefrom in the frequency range, and characteristic quantities of the substance are directly calculated from the transfer function.

Abstract: In a thermoanalytical sensor with a substrate and a thermocouple arrangement that is formed at a measurement position on the substrate, an increase in sensitivity can be achieved by way of a special geometry of the thermocouple arrangement and/or the selection of the material for the substrate. In addition, a manufacturing method is proposed for the inventive sensor.

Abstract: In a thermoanalytical sensor with a substrate and a thermocouple arrangement that is formed at a measurement position on the substrate, an increase in sensitivity can be achieved by way of a special geometry of the thermocouple arrangement and/or the selection of the material for the substrate. In addition, a manufacturing method is proposed for the inventive sensor.

Abstract: A method and apparatus for thermally investigating a material by driving the material through a temperature profile composed of isothermal and non-isothermal segments is disclosed, which enable determination of a kinetic component in a measured heat flow signal caused by the exposure of the material to the temperature profile.

Abstract: A sample holder for differential thermal analysis has a substrate with a planar surface provided with a sample position for a sample material and a reference position for reference material. The substrate allows heat flow between a heat source thermally coupled to the sample holder and the sample and reference positions. A first thermoelement arrangement in the area of the sample and reference positions is provided for supplying a thermoelectric signal corresponding to a differential between the temperatures at the sample and reference positions. First connectors are formed on the substrate for tapping the thermoelectric signal corresponding to the temperature differential. A second thermoelement arrangement provides a thermoelectric signal corresponding to an absolute temperature of the sample and reference positions. Second connectors are provided on the substrate for tapping the thermoelectric signal corresponding to the absolute temperature.

Abstract: In a dynamic mechanical analysis, a test specimen (2) is coupled to an excitation device (4) by means of a holder device (3). The excitation device (4) applies an excitation force comprised of a static pre-tensioning force component and a time-variable force component to the test specimen, and a deformation of the test specimen (2) is measured by means of one or more displacement sensors (5).

Abstract: A method and apparatus for thermally analyzing a sample of a material by detecting a heat flow between the sample (7) and a heat source (1) and evaluating a functional relation between the measured heat flow (HF) and an associated temperature is based on controlling the heating power of the heat source (1) so as to cause the heat source to follow a temperature program (17) as a function of time superposed with a modulation (23) of the heating power.