4A10.80 - IR Thermometers

Code Number:
Demo Title:
IR Thermometers
Infrared Temperature Measurements
Area of Study:
Heat & Fluids
FLIR camera, Raytek IR Thermometer, IR Fever ( human ) Thermometer, Infrared Viewer with IR diode illuminating array, Black and White camera, Bolometer.

The FLIR camera is the primary for this demonstration and can show a color scale and associated temperature when scanning.  IR temperatures can also be taken with the Raytek and the standard fever thermometer.  Note that the fever themometer has a very limited temperature range.  

You can "see in the dark" with the black and white camera or the IR viewer when using the IR diode illuminating array as the chip in the camera and the viewer is sensitive in the near IR.  

The bolometer is an ancient 1980 device used for detecting radiation from nuclear particles striking the detector.  It was designed for use at 4.2 Kelvin and has an outer jacket that was filled with liquid nitrogen and then an inner jacket that contained liquid helium to cool this device to its operating temperature.  The information we have been able to gather on this detector suggests that this has a thermopile type detector in it.  

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Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist.  The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose.  The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources.  Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks.  These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage.  Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.