Tir32 Thermal Imager; General Information; Infrared Photography; Emissivity - Fluke TiR32 Manual

See emissivity information for actual temperatures. Reflective
objects result in lower than actual temperature measurements.
These objects pose a burn hazard.
Use the product only as specified, or the protection supplied by
the product can be compromised.

TiR32 Thermal Imager

IR image of an interior corner and window.

General Information

Infrared Photography

Infrared energy is just one part of the
includes radiation from gamma rays x-rays ultra violet
ble light infrared terahertz waves microwaves , ,
are all related and have different length of wave. (a.k.a. wavelength). All
objects emit a certain amount of black body radiation because of
their temperatures and in accordance with it. Generally speaking, the
temperature has straight effect on its infrared radiation it means that the
infrared radiation increases by rising temperatures.

Emissivity

The emissivity of a material (usually written or ) is the relative ability of
its surface to emit energy by radiation. It is the ratio of energy radiated by
a particular material to energy radiated by a black body at the same
temperature. A true black body would have an = 1 while any real object
would have < 1. Since it is the ratio of tow numbers with similar
dimension, therefore it is a dimensionless quantity.
electromagnetic spectrum
, , , a thin region of
, , and radio waves
e
, which
visi
. These