Mettler-toledo Ag

Mettler-toledo Gmbh

Thomas Hütter

Melchior Zumbach

Christoph Heitz

Ulrich Esser

Bernd Danhamer

Urs Niedermann

Jürgen Schawe

Urs Jörimann

Corinne Schärer

Ulrich Eßer

A thermal analysis device comprising a replaceable sensor that can be contacted via a contact element of an electrical contacting means, a heating element and a cooling element. The contact element(s) is thermally connected with the heating element and can be heated essentially independently of the operating state of the cooling element even when no sensor is mounted to the device.

Thermal analysis device

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.

Method and device for analyzing substances

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.

Thermoanalytical sensor, and method of producing the thermoanalytical sensor

Substance analysis based upon observed reponse to excitation described herein. When a substance is subjected to an excitation and a response is observed, a relational evaluation is made based on the concept that the parameters of a mathematical model may be determined, which emulate the relationship between the excitation and the response, and that characteristic substance properties are subsequently determined/calculated from the time series of estimated values of the mathematical model.

Method and device for a thermoanalytical material analysis

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.

Sample holder for differential thermal analysis

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.

Method and apparatus for thermally investigating a material

In a dynamic mechanical analysis, a test specimen is coupled to an excitation device by a holder device. An excitation force made up of a static pre-tensioning force component and a time-variable force component is applied to the test specimen, and a deformation of the test specimen is measured by one or more displacement sensors. In a test phase an excitation force is applied to the test specimen, while at least one decision parameter is determined. The decision parameter is indicative of a degree of slack in the coupling of the test specimen. Based on the comparison between the decision parameter and at least one reference value it is determined whether or not the test specimen is coupled to the excitation device in a completely slack-free state, so that any measured physical values will not be subjected to errors caused by an insufficient amount of the pre-tensioning force.

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Niederrohrdorf, Switzerland

Thomas Hütter