Vorprogrammiertes Ultraschall-Echo-Impulsgeraet zur Fehlergroessenanzeige bei der Werkstoffpruefung

摘要

In an ultrasonic pulse-echo apparatus for nondestructive materials testing, particularly for flaw size determination, flaw size is determined by the reflected echo intensity as analyzed by means of programmable circuit modules the output of which is readout in terms of the flaw distance on the scale or similar means of an indicator instrument.