A method for ultrasonic testing of a workpiece in a curved region of its surface and suitable for carrying out the process, a test arrangement

摘要

In the case of a process for the ultrasonic testing of a workpiece (2) in a curved region of its surface, in particular one of a fiber compound material workpiece (2), in this region is, an ultrasonic test head (10) and acoustically coupled to the workpiece, the one of a plurality (n) of adjacently arranged individually controllable transducer elements (20_i) constructed ultrasonic transducer arrangement (12) contains. In chronologically successive testing cycles, in each case, a number (n) of transducer elements (20_i) combined into a group and in a plurality of test cycles within this test cycle with a time delay with respect to one another are controlled in such a way that the transmitted ultrasound beam (30a - d) in this test cycle, in a predetermined angular range (α₁, α₂) is pivoted, so that for each group consisting of one of the number of test cycles corresponding number of echo signals from different directions of the workpiece (2) are received.