Method and experimental investigation of surface heat dissipation measurement using 3D thermography

Abstract

Abstract. Three-dimensional thermography describes the fusion of geometry- and temperature-related sensor data. In the resulting 3D thermogram, thermal and spatial information of the measured object is available in one single model. Besides the simplified visualization of measurement results, the question arises how the additional data can be used to get further information. In this work, the Supplement information is used to calculate the surface heat dissipation caused by thermal radiation and natural convection. For this purpose, a 3D thermography system is presented, the calculation of the heat dissipation is described, and the first results for simply shaped measurement objects are presented.

Integration and evaluation of the high-precision MotionCam-3D into a 3D thermography system

“…The results showed that the size of these surface units has decreased by a factor of 2 to 3. This suggests that the point clouds obtained with the new system are more useful for post-applications, such as creating meshes for calculating the surface heat dissipation and computing the measured temperature values, as presented in Schmoll et al (2022). This will be assessed in a future work.…”

“…For the geometric calibration, the calibration toolbox presented in Schramm et al (2021b) and the coded target presented in Schramm et al (2021a) were utilized. The codes can be downloaded from the following git repositories: https://doi.org/10.5281/zenodo.11367429 (Schramm et al, 2024) and https://doi.org/10.5281/zenodo.4596313 (Schramm and Ebert, 2021).…”

“…This indicates that the resolution of the models has increased with the new system by more than 2 times, as was expressed before. It would be expected that using the 3D thermograms of the new system for calculating the surface heat dissipation of inspected bodies (see Schmoll et al, 2022) should deliver more accurate results due to the possibility of obtaining a mesh with smaller elements.…”

3D Multi-Modality Medical Imaging: Combining Anatomical and Infrared Thermal Images for 3D Reconstruction

“…Schramm et al [ 22 ] presented 3D thermograms and some advantages compared to other existing systems. Schmoll et al [ 23 ] also presented 3D thermography describing the fusion of geometry and temperature sensors, but for heat dissipation applications.…”