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.
Highlights
Thermography is a widely used method for the measurement of surface temperature fields
If the energy emitted from a measurement object is to be calculated as heat dissipation, the surface area of the object is required
In classical two-dimensional (2D) thermography, this is only possible if the object is flat and the distance between the camera and the object or the size of the measured object is known
Summary
Thermography is a widely used method for the measurement of surface temperature fields. The fusion of thermal and geometric sensor data is called 3D thermography The result of this process is a complete geometric model of the measured object, with the temperature data as a surface overlay. 3D thermograms allow the analysis and visualization of complex objects in one single model, instead of many individual 2D thermograms in a measurement report. This provides a clear and complete overview, especially for large or complex measurement objects, such as electrical installations or heat-carrying facilities like hardening furnaces. The 3D thermography enables further automatic analysis steps where geometric and temperature quantities are needed
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