What Is a Thermal Imager?


A thermal imager is a camera that uses lenses and sensors to focus and detect electromagnetic radiation in the MWIR and LWIR spectrum. This radiation is emitted by objects at a temperature higher than their surroundings and stands out from cooler backgrounds such as air, water or ice. This makes humans, warm-blooded animals, and their surroundings readily visible in darkness or poor lighting conditions without the need for an illuminating light source.Learn more :thermal-imaging.uk

The imager’s sensor array converts infrared waves into electronic signals which are processed to create a colour map of different temperature values. The resulting image is displayed on the camera’s screen. A thermal imaging camera can be used for a wide range of applications including detecting hot spots along overhead power lines; identifying energy loss in buildings or homes; finding moisture behind walls and flooring; and spotting clogs in pipes.

Unlocking the Power of Thermal Imaging: Tips and Tricks for Effective Use

Some models offer a choice of cooled or uncooled focal plane arrays, each with their unique advantages and disadvantages. For example, a cooled imager is more sensitive to emissivity than an uncooled model. However, a cooled imager requires a more expensive cooling system to operate.

A key consideration when selecting a thermal imager is the size of the detector array and the camera’s resolution. Increasing the size of the detector array increases the number of pixels in each image, which results in greater detail and improved accuracy for measurements. This is particularly important when looking at smaller targets.

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