
124
Figure 17.8 Spectral radiant emittance of three types of radiators. 1: Spectral radiant emittance;
2: Wavelength; 3: Blackbody; 4: Selective radiator; 5: Graybody. ....................................
124
Figure 17.9 Spectral emissivity of three types of radiators. 1: Spectral emissivity; 2: Wavelength;
3: Blackbody; 4: Graybody; 5: Selective radiator. ....................................................................
126
Figure 18.1 A schematic representation of the general thermographic measurement situation.1:
Surroundings; 2: Object; 3: Atmosphere; 4: Camera .............................................................
128Figure 18.2 Voltages ..................................................................................................................................................
130
Figure 18.3 Relative magnitudes of radiation sources under varying measurement conditions
(SW camera). 1: Object temperature; 2: Emittance; Obj: Object radiation; Refl:
Reflected radiation; Atm: atmosphere radiation. Fixed parameters: τ = 0.88; T
refl
=
20 °C (+68 °F); T
atm
= 20 °C (+68 °F). ............................................................................................
131
Figure 18.4 Relative magnitudes of radiation sources under varying measurement conditions
(LW camera). 1: Object temperature; 2: Emittance; Obj: Object radiation; Refl:
Reflected radiation; Atm: atmosphere radiation. Fixed parameters: τ = 0.88; T
refl
=
20 °C (+68 °F); T
atm
= 20 °C (+68 °F). ............................................................................................
132
Figure 19.1 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 .............
x Publ. No. 1 557 945 Rev. a43 – ENGLISH (EN) – April 6, 2004
Komentáře k této Příručce