G - Physics – 01 – N
Patent
G - Physics
01
N
349/42
G01N 29/04 (2006.01) G01N 29/06 (2006.01) G01N 29/07 (2006.01) G01N 29/38 (2006.01) G01N 29/44 (2006.01) G01S 7/52 (2006.01)
Patent
CA 1194979
ABSTRACT OF THE DISCLOSURE In order to reliably exclude interfering signals caused by disturbances such as air bubbles existing in a coupling medium from signals generated by workpiece defects in the ultrasonic testing of workpieces according to the pulse-echo- method, at the appearance of a signal in the time between trans- mitting pulse and surface echo-signal crossing an adjustable threshold during a test cycle, all signals of the same test cycle falling within the range of anticipation for workpiece defects are suppressed.
420711
Ruth Ursula
Schreyer Fritz
Sternberg Walter
Marks & Clerk
Nukem G.m.b.h.
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