Publikationsdatum:
2019-07-13
Beschreibung:
Ultraviolet laser induced atomic fluorescence has been used to characterize supersonic jet aerodynamic levitation experiments. The levitated specimen was a 0.4 cm sapphire sphere that was separately heated at temperatures up to 2327 K by an infrared laser. The supersonic jet expansion and thermal gradients in the specimen wake were studied by measuring spatial variations in the concentration of atomic Hg added to the levitating argon gas stream. Further applications of atomic fluorescence in containerless experiments, such as ideal gas fluorescence thermometry and containerless process control are discussed.
Schlagwort(e):
ASTRONAUTICS (GENERAL)
Materialart:
Materials processing in the reduced gravity environment of space; Annual Meeting; Nov 16, 1981 - Nov 18, 1981; Boston, MA
Format:
text
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