Ge Inspection Technologies, Gmbh

Michael Strauss

Roman Heinrich Koch

Walter Franz De Odorico

Albrecht Maurer

Wolfgang Haase

Roman Koch

The invention relates to an ultrasound probe arrangement () for coupling ultrasonic signals toward a component (), which is to be inspected, by using the water open jet method, with a probe (), which is placed inside a jet nozzle () and having a multitude of ultrasonic transmitting and/or receiving elements () and at least one liquid inlet () as well as at least one liquid outlet (). In order to improve the flow of water inside the jet nozzle, the invention provides that: one or more preliminary or filter chambers (FK, FK, FK) are situated upstream from a flow space (); each preliminary or filter chamber (FK, FK, FK) comprises a dividing wall (TW, TW, TW) having flow channels (SK, SK, SK) running perpendicular to the direction of flow; the number of flow channels (SK, SK, SK) in each dividing wall (TW, TW, TW) increases in the direction of flow, and; the diameter of the flow channels (SK, SK, SK) in each dividing wall (TW, TW, TW) decreases in the direction of flow.

Ultrasound probe arrangement

A method and circuit arrangement for processing signals which are produced during disturbance-free examination of objects such as pipes or sheet metal, by reflecting ultrasonic waves at defective spots on the structure of the object. According to the method, a complete wave front is emitted on at least one section of the object which is to be examined by means of a plurality of independent transmitting elements, a wave reflected by the structure of the object is received by means of a plurality of receiving elements which are independent of each other, the signals received by the receiving elements are digitalized, and the digitalized signals are stored in a storage element according to amplitude and propagation time. In order to detect defective points on the structure of the object in a faster manner with improved signal/noise ratio, the defective points are detected by a phase-locked addition of the stored amplitude values of the propagation time.

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Mömbris, Germany

Michael Strauss