FLIR ThermaCAM P20 Operator's Manual page 11

Figure 18.2 Gustav Robert Kirchhoff (1824-1887) .........................................................................................
Figure 18.3 Max Planck (1858-1947) ...................................................................................................................
Figure 18.4 Blackbody spectral radiant emittance according to Planck's law, plotted for various
absolute temperatures. 1: Spectral radiant emittance (W/cm
Wavelength (μm) ................................................................................................................................
Figure 18.5 Wilhelm Wien (1864-1928) .............................................................................................................
Figure 18.6 Planckian curves plotted on semi-log scales from 100 K to 1000 K. The dotted line
represents the locus of maximum radiant emittance at each temperature as
described by Wien's displacement law. 1: Spectral radiant emittance (W/cm
2: Wavelength (μm). ..........................................................................................................................
Figure 18.7 Josef Stefan (1835-1893), and Ludwig Boltzmann (1844-1906) ......................................
Figure 18.8 Spectral radiant emittance of three types of radiators. 1: Spectral radiant emittance;
2: Wavelength; 3: Blackbody; 4: Selective radiator; 5: Graybody. ....................................
Figure 18.9 Spectral emissivity of three types of radiators. 1: Spectral emissivity; 2: Wavelength;
3: Blackbody; 4: Graybody; 5: Selective radiator. ....................................................................
Figure 19.1
A schematic representation of the general thermographic measurement situation.1:
Surroundings; 2: Object; 3: Atmosphere; 4: Camera .............................................................
Figure 19.2 Voltages ..................................................................................................................................................
Figure 19.3 Relative magnitudes of radiation sources under varying measurement conditions
(SW camera). 1: Object temperature; 2: Emittance; RED: Object radiation; BLUE:
Reflected radiation; GREEN: atmosphere radiation. Fixed parameters: τ = 0.88; T
= 20 °C (+68 °F); T
Figure 19.4 Relative magnitudes of radiation sources under varying measurement conditions
(LW camera). 1: Object temperature; 2: Emittance; RED: Object radiation; BLUE:
Reflected radiation; GREEN: atmosphere radiation. Fixed parameters: τ = 0.88; T
= 20 °C (+68 °F); T
Figure 20.1 T: Total spectrum; SW: 2-5 µm; LW: 8-14 µm, LLW: 6.5-20 µm; 1: Material; 2:
Specification; 3: Temperature in °C; 4: Spectrum; 5: Emissivity: 6: Reference .............
Publ. No. 1 557 536 Rev. a35 - ENGLISH (EN) - January 20, 2004
= 20 °C (+68 °F). .........................................................................................
atm
= 20 °C (+68 °F). .........................................................................................
atm
2 3
× 10 (μm)); 2:
2
(μm));
refl
refl
88
89
90
91
92
93
95
95
97
99
101
101
102
ix