Abstract
Optical diagnostics have been applied to gas flows generated within a superorbital expansion tube for the first time. Such facilities are being developed to replicate conditions experienced by spacecraft travelling at superorbital speeds through planetary atmospheres. In the non-intrusive flow diagnostic method of holographic interferometry, fringes representative of the difference in integrated gas density between the two illuminated states of an object field are superimposed on its holographic image.
© 1996 Optical Society of America
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