Thermal cameras detect temperature by recognizing and capturing different levels of infrared light. This light is invisible to the naked eye, but can be felt as heat if the intensity is high enough. ... Thermal cameras can see this radiation and convert it to an image that we can then see with our eyes.

How does a thermal camera measure temperature?

A thermal camera capture and create an image of an object by using infrared radiation emitted from the object in a process that is called thermal imaging. The created image represents the temperature of the object.

How are thermal cameras used?

Thermal imaging cameras are devices that translate thermal energy (heat) into visible light in order to analyze a particular object or scene. ... These images can be used for immediate diagnosis or processed through specialized software for further evaluation, accuracy and report output.