Active Ther­mo­graphy

New materials with precisely controlled optical and thermal transport characteristics can make a large contribution to resource-saving thermal management. Scientists of the University of Bayreuth are pursuing this vision. They use infrared thermography to quantitatively determine thermal conductivity in nano- and mesostructured polymer materials.

When electric vehicles went into production, the joining process was replaced by resistance spot welding. The INDU-SCAN test bench already in operation was converted using existing technology and modernised with intelligent algorithms and robot technology to enable quality control of the joined sheet metal parts.

Stress changes during tensile testing provide information about material properties of metals such as tensile strength. With the help of thermographic cameras metallic solid bodies can be tested for such stress changes.

The combination of measuring results from the digital image correlation (ARAMIS, DIC) and temperature measuring data from infrared cameras enables the simultaneous analysis of the thermal and mechanical behavior of test specimens in the materials and components testing field.

Non-destructive testing methods are becoming increasingly more important in the industry. One reason is that they cost much less than other test methods. As a very elegant method, the active heat flow thermography method is now firmly established as a powerful method of non-contact and non-destructive testing of products of different manufacturing technologies.

Geological field research on Earth provides easily accessible material, but this has been significantly altered by the Earth's history. Unadulterated samples from the early days of the solar system can therefore only be obtained in space, where minor planets have preserved them for billions of years. Japanese researchers have been able to use microscopic active thermography to prove that the minor planet Ryugu contains such original material.