Method of detecting discontinuities on elongated workpieces

Details Method of detecting discontinuities on elongated workpieces Method of detecting discontinuities on elongated workpieces

2005-01-18

2005-01-18

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

C073S622000

Reexamination Certificate

active

06843131

ABSTRACT:
In a method of detecting discontinuities on elongated workpieces, in particular tubes and bars, using ultrasonic testing system, a test object is positioned in relationship to a test head of the testing system, with the test object and the test head being moveable to one another. Signals from the test head are transmitted to an evaluation unit, where they are digitized and evaluated. The digitized signals of a test shot of a length position X are compared with digitized signals of a test shot of a length position X+ΔX, wherein ΔX is a multiple of a shot distance, and the difference is evaluated.

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