Siemens Aktiengesellschaft

Kraftwerk Union Aktiengesellschaft

Hermann Wustenberg

Anton Erhard

Walter Mohrle

Werner Rathgeb

Eduard Schulz

An ultrasonic test head for ultrasonically testing flaws in a workpiece includes a common housing. An ultrasonic transducer configuration is disposed in the common housing. At least one ultrasonic transducer array is disposed in the common housing for operation in a pulse echo mode for transverse waves propagating in a workpiece. The ultrasonic transducer configuration includes at least two acoustically separate ultrasonic transducers to be operated in a transmit/receive mode for longitudinal waves propagating near a surface in the workpiece. In a method for operating the ultrasonic test head, each ultrasonic transducer array or arrays is operated in a transmit/receive mode.

Ultrasonic test head and method for its operation

A method of determining depth propagation of a defect in a body by ultrasonic materials testing wherein a first angle probe having an ultrasonic wave transmitting oscillator produces a scatter signal at structural inhomogeneities of a body formed with a defect and the scatter signal is received by an ultrasonic wave receiving oscillator of a second angle probe, which includes: transmitting an ultrasonic wave at a first angle along a first line in direction towards the defect so that the scatter signal thereat is shadowed by the defect and diminished in intensity; receiving the diminished signal from the defect at a second angle in a direction along a second line intersecting with the first line at a defect, transmitting additional ultrasonic waves and receiving diminished scatter signals along respective lines intersecting at the defect at varying depths of the body and ascertaining the depth propagation of the defect by a marked increase in intensity of the received signal when the intersection of the respective lines along which the ultrasonic wave is transmitted and the scatter signal is received reach beyond the innermost limit of the defect.

Growing community of inventors

Berlin, Germany

Hermann Wustenberg