Home Technology How A Thermal Camera Works And Uses Of Thermal Camera

How A Thermal Camera Works And Uses Of Thermal Camera


How A Thermal Camera Works And Uses Of Thermal Camera

What Is Thermal Camera ?

Thermal camera is also known as knight vision camera and Infrared Camera.In Today’s life thermal camera is used in many industries and home uses

Thermal Camera Working.

How A Thermal Camera Works

Our eyes work by seeing contrast between objects that are illuminated by either the sun or another form of light.  A thermal camera operates by “seeing” heat energy from objects.  All objects – living or not – have heat energy that thermal cameras use to detect an image. This is why thermal cameras can operate at all times, even in complete darkness.

  1. A special lens of thermal camera focuses the infrared light emitted by all of the objects in view. The focused light is scanned by a phased array of infrared-detector elements. The detector elements create a very detailed temperature pattern called a thermogram.
  2. The thermogram created by the detector elements is translated into electric impulses.
  3. The impulses are sent to a signal-processing unit, a circuit board with a dedicated chip that translates the information from the elements into data for the display.
  4. The signal-processing unit sends the information to the display, where it appears as various colors depending on the intensity of the infrared emission. The combination of all the impulses from all of the elements creates the image.


Thermal Camera images look very different than what’s seen by a visible camera or the eye.  In order to present heat in a format appropriate for human vision, thermal cameras convert the temperature of objects into shades of gray which are darker or lighter than the background. On a cold day a person stands out as lighter because they are hotter than the background. On a hot day a person stands out as darker because they are cooler than the background.

Uses Of Thermal Camera

  1. Substation electrical inspections
  2. Thermal heat loss inspections of buildings
  3. Locate radiant heating wires or pipes
  4. Locate potential areas for mold growth
  5. Flat-roof leak detection for buildings
  6. Detect thermal patterns on boiler tubes
  7. Mechanical bearing inspections
  8. Detect insulation leaks in refrigeration equipment
  9. Manufacturing industries, Refineries and many others worldwide use infrared cameras to locate problems or to detect hot spots and other problems before they turn into costly failures and production downtime or dangerous electrical fires.
  10. Thermal cameras electrical contractors can scan electrical cabinets and components for a non-contact view of conditions.
  11. Thermal Camera is very useful for security and surveillance .