
10399403;a1
Figure 20.5 Wilhelm Wien (1864–1928)
The sun (approx. 6 000 K) emits yellow light, peaking at about 0.5 μm in the middle
of the visible light spectrum.
At room temperature (300 K) the peak of radiant emittance lies at 9.7 μm, 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 μm, in the extreme infrared
wavelengths.
10327203;a3
Figure 20.6 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
(μm)); 2: Wavelength (μm).
20
Publ. No. 1557978 Rev. a155 – ENGLISH (EN) – February 6, 2006
139
20 – Theory of thermography
Содержание ThermaCam P25
Страница 2: ......
Страница 4: ......
Страница 6: ......
Страница 7: ...ThermaCAM P25 User s manual Publ No 1557978 Rev a155 ENGLISH EN February 6 2006...
Страница 10: ...Reg No Status Designation 29 233 400 Pending U S x Publ No 1557978 Rev a155 ENGLISH EN February 6 2006...
Страница 16: ...INTENTIONALLY LEFT BLANK 1 2 Publ No 1557978 Rev a155 ENGLISH EN February 6 2006 1 Warnings cautions...
Страница 26: ...INTENTIONALLY LEFT BLANK 4 12 Publ No 1557978 Rev a155 ENGLISH EN February 6 2006 4 Packing list...
Страница 66: ...INTENTIONALLY LEFT BLANK 8 52 Publ No 1557978 Rev a155 ENGLISH EN February 6 2006 8 Tutorials...
Страница 78: ...INTENTIONALLY LEFT BLANK 9 64 Publ No 1557978 Rev a155 ENGLISH EN February 6 2006 9 Camera overview...
Страница 98: ...INTENTIONALLY LEFT BLANK 11 84 Publ No 1557978 Rev a155 ENGLISH EN February 6 2006 11 Folder and file structure...
Страница 104: ...INTENTIONALLY LEFT BLANK 12 90 Publ No 1557978 Rev a155 ENGLISH EN February 6 2006 12 Electrical power system...
Страница 108: ...INTENTIONALLY LEFT BLANK 14 94 Publ No 1557978 Rev a155 ENGLISH EN February 6 2006 14 Maintenance cleaning...
Страница 158: ...INTENTIONALLY LEFT BLANK 20 144 Publ No 1557978 Rev a155 ENGLISH EN February 6 2006 20 Theory of thermography...
Страница 191: ......