Optical Dilatometer from Linseis Thermal Analysis - Measurement example

Описание: In an optical dilatometer the sample is compared with a reference material during a measurement. During melting, the two red lines are subtracted from each other. The field of view has an area of 3.8 x 2.8 mm.

Optical Dilatometry:
Optical dilatometry allows the investigation of sintering processes and the thermal linear expansion, especially of anisotropic and fragile materials as well as of samples with complicated geometries. In non-contact thermomechanical determination, the softening point and melting temperatures of materials can also be determined.

How does optical dilatometry work in a measuring device?
In thermo-optical analysis with a dilatometer equipped with a camera, the sample is irradiated with light from one side and the shadows are recorded on the other side. Based on the data obtained, a computer calculates the change in length of the sample.


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