FLIR ThermaCAM P20, Руководство оператора

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of-thumb 3 000/T
μ
m. Thus, a very hot star such as Sirius (11 000 K), emitting
bluish-white light, radiates with the peak of spectral radiant emittance occurring
within the invisible ultraviolet spectrum, at wavelength 0.27
μ m.
10399403;1
Figure 18.5 Wilhelm Wien (1864–1928)
The sun (approx. 6 000 K) emits yellow light, peaking at about 0.5 μ m in the middle
of the visible light spectrum.
At room temperature (300 K) the peak of radiant emittance lies at 9.7 μ m, in the
far infrared, while at the temperature of liquid nitrogen (77 K) the maximum of
the almost insignificant amount of radiant emittance occurs at 38
μ m, in the ex-
treme infrared wavelengths.
18.3 – Blackbody radiation
Publ. No. 1 557 536 Rev. a35 – ENGLISH (EN) – January 20, 2004
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