February 26, 2018

What is Thermal Imaging Camera

  1. What Is Thermal Camera?

Thermal imaging is the technique of using the heat given off by an object to produce an image of it or to locate it All objects have a certain temperature and emit waves of energy called infrared radiation. Hot objects emit more energy than cold objects. A thermal imager translates these energy waves into a viewable image, which shows a “heat picture” of a scene. On the screen of a thermal imager set to white-hot, hotter objects show as white, cooler objects show as black, and objects in between these temperatures are displayed in shades of gray.



Cooled Thermal Camera

Cooled detectors are typically contained in a vacuum-sealed case and cryogenically cooled Cooling is necessary for the operation of the semiconductor materials used else they would be blinded by their own radiation Cooled infrared cameras provide superior image quality Bulky and expensive to produce and run Cooling is power-hungry and time-consuming hence the camera needs time to cool down before it can begin working again

Uncooled Thermal Camera

Un-cooled detectors use a sensor operating at ambient temperature, or a sensor stabilized at room temperature using control elements Resolution and image quality tend to be lower than cooled detectors Smaller and less costly to produce and run Fast operation and consumes less power.



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