Loading patent…
AssigneeGE Sensing & Inspection Technologies GmbH
InventorsYork Oberdoerfer, Michael Berke, Wolf-Dietrich Kleinert, Jerome Poirier, Sascha Schieke
Estimating the term…
The invention relates to a nondestructive ultrasonic test method in which at least one ultrasonic pulse is emitted into a workpiece under test by at least one ultrasonic transmitter (3), the ultrasonic pulse is reflected on boundary surfaces within the workpiece, the reflected ultrasound is received by at least one ultrasonic receiver (2), and the associated signals are evaluated, the ultrasound penetrating a damping block (4) that is arranged between the workpiece and the transmitter or receiver. The method is characterized in that it includes at least one step for determining at least one dimension (alpha, d1, d2) of the damping block (4) that is relevant for the ultrasonic test; in said step, the propagation time of at least one ultrasonic pulse which is generated by the ultrasonic transmitter (3), is reflected on a boundary surface (5) of the damping block (4), and is received by the ultrasonic receiver (2) is measured, and at least one dimension (alpha, d1, d2) of the damping block (4) that is relevant for the ultrasonic test is determined from the measurement.
Method for non-destructive ultrasound inspection, wherein at least one ultrasonic pulse is radiated by means of at least one ultrasonic transmitter into a workpiece to be inspected and the at least one ultrasonic pulse is reflected on boundary surfaces in the workpiece, a reflected ultrasound is received by means of at least one ultrasonic receiver and a plurality of associated signals are evaluated, and the at least one ultrasonic pulse passes through a leading body which is disposed between the workpiece and the transmitter or receiver, wherein the method comprises at least one step for determining sound velocity in the leading body by means of a phased array comprised of selectively controllable transducers, wherein at least one first transducer of the phased array acts as a transmitter of the at least one ultrasonic pulse, and at least one second transducer of the phased array acts as a receiver of the at least one ultrasonic pulse, respectively, wherein the at least one first transducer of the phased array and the at least one second transducer of the phased array are spaced as distant from one another as possible, the sound velocity in the leading body is determined at least by means of a travel time measurement of the at least one ultrasonic pulse along a shortest sound path of the at least one ultrasonic pulse between the at least one first transducer of the phased array and the at least one second transducer of the phased array, and the sound velocity in the leading body is used in an evaluation of the at least one ultrasonic pulse from the ultrasound inspection of the workpiece.
Dependencies are inferred from the claim text.