How Does an Infrared Camera Work?

An infrared camera is a non-contact device that detects infrared energy (heat) and converts it into an electronic signal, which is then processed to produce a thermal image on a video monitor and perform temperature calculations.  Heat sensed by an infrared camera can be very precisely quantified, or measured, allowing you to not only monitor thermal performance, but also identify and evaluate the relative severity of heat-related problems.

Recent Infrared Innovations

Recent infrared innovations, particularly detector technology, such as the incorporation of built-in visual imaging, automatic functionality, and infrared software development deliver more cost-effective thermal analysis solutions than ever before.  Picture-in-Picture (PIP) technology in thermal cameras allows you to overlay a thermal image on top of a regular digital image.  Depending upon your infrared camera you may be able to resize the thermal image box or it may be fixed in the center of your display image and saved images.  Some IR cameras also allow for the fusion or blending of infrared and digital images.  This is when the thermal image is faded over the digital image, increasing visibility of what is below the thermal image.  The capability can permit reading of machine labels, electrical panels, production line controls, etc.  to identify the specific device imaged and the specific location where the image was taken.  Infrared cameras work to show a thermal world not visible to the unaided eye.

View our full line of Thermal Imaging Cameras:


For over 33 years Monroe Technology has been there for the professional thermographer. Monroe Infrared helps clients understand, select and train to maximize the value achieved with the right infrared camera.  Contact us to discuss and review your applications, expectations and budget constraints. 

The i-Series is a great tool for those who are in the trenches. Put the i-Series in your tool box today and use the power of infrared to visually detect problems before they detect you. Please contact us to discuss and review all of these as necessary to ensure you make the best decision for your business!

Infrared Technology Knowledgebase