What are the uses of infrared detectors?

Answer 1

I believe infrared detectors measure heat being given off by an object. However since everything gives off heat.. the detectors have to be cooled down to very low temperatures themselves using liquid helium croyogen. Emma D

Answer 2

Here's how thermal imaging works:

1. A special lens focuses the infrared light emitted by all of the objects in view.
2. 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. It only takes about one-thirtieth of a second for the detector array to obtain the temperature information to make the thermogram. This information is obtained from several thousand points in the field of view of the detector array.
3. The thermogram created by the detector elements is translated into electric impulses.
4. 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.
5. 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.

Look on this link: http://electronics.howstuffworks.com/gadgets/high-tech-gadgets/nightvision2.htm

Answer 3

There are no uses of infrared detectors!!!!!!!!!!!!!!

Answer 4

infrared waves have certain heating capacity. certain instuments are made to absorb these waves and by measuring the heat production in certaing amount of time, the waves are measured.

Answer 5

Infrared rays are detected through the use of heat-sensitive devices. These devices include photoconductors, bolometers, photovoltaic cells and thermocouple detectors.

Answer 6

It is detected using a thermal imaging camera

Answer 7

They can 'see' infra red radiation or heat