👉 Thermography is a type of imaging that uses light and heat to create images or signals in a material. It involves using infrared radiation, which is emitted by materials like glass and metal, as well as visible light, which can be absorbed by different materials. The absorbed light can then be converted into an electrical signal, which can then be analyzed for various purposes such as temperature measurement, detection of defects, or analysis of medical images. The term "thermography" was first used in the