Method of detecting discontinuities on elongated workpieces
First Claim
1. A method of detecting discontinuities on elongated workpieces, in particular tubes and bars, using ultrasound, comprising the steps of:
- positioning a test object in relationship to a test head, moving the test object and the test head relative to one another;
transmitting reception signals generated in the test head to an evaluation unit and digitizing the signals, comparing the digitized signals of a test shot at a length position X with digitized signals of a test shot at a length position X+Δ
X, wherein Δ
X is a multiple of a shot distance, by evaluating a difference between the test shots.
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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.
47 Citations
6 Claims
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1. A method of detecting discontinuities on elongated workpieces, in particular tubes and bars, using ultrasound, comprising the steps of:
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positioning a test object in relationship to a test head, moving the test object and the test head relative to one another;
transmitting reception signals generated in the test head to an evaluation unit and digitizing the signals, comparing the digitized signals of a test shot at a length position X with digitized signals of a test shot at a length position X+Δ
X, wherein Δ
X is a multiple of a shot distance, by evaluating a difference between the test shots. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification