Automatic Detection of Spills and Gas Pockets upon Ultrasonic Checking of Welds in Zirconium Fuel Claddings.

Autor:	Aleksandrov, A. B., Zhukov, Yu. A., Vasyukov, V. N., Gruzman, I. S., Karlov, Yu. K., Marchenko, V. G., Spektor, A. A.
Předmět:	ELECTRON beam welding ELECTRON beams WELDING INDUSTRIAL applications of electron beams MANUFACTURING processes ZIRCONIUM
Zdroj:	Russian Journal of Nondestructive Testing; Apr2004, Vol. 40 Issue 4, p233-238, 6p
Abstrakt:	The problem of automating detection of flaws (gas pockets and spills) in welds obtained by electron-beam welding, using the ultrasonic echo method which is implemented by slanted introduction of ultrasonic waves into a thin zirconium fuel shell, is considered. Algorithms for automatic detection of flaws and evaluation of their relative dimensions are proposed. Experimental results confirming the efficiency of the algorithms proposed are reported. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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