The Thermal Imaging Camera And How It Works

How Do Thermal Cameras Work, Infrared, Infrared Spectrum, Infrared Thermal, IR, IR Thermal, Thermal, Thermal Camera, What is Thermal -

The Thermal Imaging Camera And How It Works

A thermal imaging camera records the intensity of radiation in the infrared part of
the electromagnetic spectrum and converts it to a visible image.

Infrared Spectrum

What is infrared?

Our eyes are detectors that are designed to detect electromagnetic radiation in
the visible light spectrum. All other forms of electromagnetic radiation, such as
infrared, are invisible to the human eye.
The existence of infrared was discovered in 1800 by astronomer Sir Frederick
William Herschel. Curious to the thermal difference between different light
colors, he directed sunlight through a glass prism to create a spectrum and then
measured the temperature of each color. He found that the temperatures of the
colors increased from the violet to the red part of the spectrum.
After noticing this pattern Herschel decided to measure the temperature just
beyond the red portion of the spectrum in a region where no sunlight was visible.
To his surprise, he found that this region had the highest temperature of all.
Infrared radiation lies between the visible and microwave portions of the
electromagnetic spectrum. The primary source of infrared radiation is heat or
thermal radiation. Any object that has a temperature above absolute zero (-273.15 degrees Celsius or 0 Kelvin) emits radiation in the infrared region. Even objects that we think of as being very cold, such as ice cubes, emit infrared radiation.

What is Thermal

We experience infrared radiation every day. The heat that we feel from sunlight, a
fire or a radiator is all infrared. Although our eyes cannot see it, the nerves in our
skin can feel it as heat. The warmer the object, the more infrared radiation it emits

The Thermal Imaging Camera

Infrared energy (A) coming from an object is focused by the optics (B) onto an
infrared detector (C). The detector sends the information to sensor electronics (D)
for image processing. The electronics translate the data coming from the detector
into an image (E) that can be viewed in the viewfinder or on a standard video
monitor or LCD screen.

How Thermal Imaging Works

 

 

 

 

 

 

 

 

 

View our range of Thermal Cameras Here


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