FMX 400/FMX 700 SERIES USER MANUAL
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10-2-1 Detail Parameters
Name, Date, and Time information is automatically recorded and stored when
and image is captured. Images have a default name of “XXYZ_IR” where “X” is
a series of numbers. Users can enter notes in the Comments section. Location/
GPS is captured if enabled.
10-2-2 Emissivity
Users are provided the capability to enter any value of surface optical property
of the target surface deemed appropriate to the analysis. To set the emissivity
enter a value from 0.01 to 1.0 in the input box.
The accompanying table gives the typical emissivity of important materials:
Material
Emissivity
Water
.96
Stainless steel
.14
Aluminum plate
.09
Asphalt
.96
Concrete
.97
Cast iron
.81
Rubber
.95
Wood
.85
Brick
.75
Tape
.96
Brass plate
.06
Human skin
.98
PVC plastic
.93
Polycarbonate
.80
Oxidized copper
.78
Rust
.80
Paint
.90
Soil
.93
AS THE EMISSIVITY VALUE BECOMES LOWER THE ERROR BETWEEN THE
ACTUAL SURFACE TEMPERATURE OF THE OBJECT AND THAT SHOWN
BY THE CAMERA BECOMES GREATER. A GREAT DEAL OF ERROR CAN BE
INTRODUCED INTO THE CALCULATION PROCESS IF YOU ARE NOT CAREFUL
WITH THE EMISSIVITY SPECIFICATION.
