Thermopile With Dvm

Purpose

To observe infrared radiation.
 

Equipment

Thermopile, DVM with TV camera and monitor, heat sources.

 

Setup Time

5 min.
 

    Images

    i2-07

    Description

    The output from a commercial thermopile is connected to a digital voltmeter where the voltage is proportional to the temperature observed: the hotter the object the higher the voltage. Use various sources: ice, boiling water, liquid nitrogen, the floor, people, etc. This is only qualitative; the system is not calibrated.