DESCRIPTION: The Thermal Imager converts thermal
radiation from the scene into electrical signals and is
capable of resolving temperature differentials smaller
than 0.2°C. The tubes have optimum sensitivity in the 8
to 14 infra-red band in which there is a maximum radiant
power from objects at temperatures close to ambient. The
system uses the pyroelectric effect in a thin layer of
polar crystal. Variations in the electrical polarization
of the target resulting from temperature changes
produces a distribution of surface charges corresponding
to the pattern of heat absorbed. The signal current is
the result of neutralization of the charges by the
scanning beam. USE: Used to detect hot spots which
enables the course of action for firefighters. USE TIP:
Uses 10 "AA" batteries per cartridge. NSN
4210-01-213-7310 WT. 29.0 lbs. VOL. 2,873.0 in3 |
