Emissivity of straight and helical filaments of tungsten (1918)
National Bureau of Standards · leaf 21
0, of the turn of the wire. Curve C gives the energydistribution of the hairpin filament when set to the same bril- 20172°—17 9 128 Bulletin of the Bureau of Standards [Vol. 14 liancy as the outside of the turn of the helical filament. Thelack of coincidence of curves 0 and C may be due to a… … 4 .6 •8 .2 .6 .8 .2 4^ Fig. 5.—Distribution of energy radiated from the inside I, and outside, O, of the turn ofa helical filament of tungsten length of the maximum emission of the radiation from within thehelix is Xm =1.115/1. Using XmT = 2894 for a black body, which,of course, is not exactly the…
Rays and radiation · Lamps and lighting · Heat flow, thermal and thermodynamic processes
Internet Archive · NIST Research Library · Public Domain Mark 1.0. Free to use for anything.
