A method for non-destructive testing of a high-strength specimen by ultrasonic, the use of a test head for carrying out the method, an ultrasonic probe, a drive unit for an ultrasonic probe and a device for the non-destructive testing of a specimen of high material strength by means of ultrasound

摘要

A method for non-destructive testing of a high-strength specimen (10) by ultrasound, comprising the following steps: a. Providing an ultrasonic probe (20) with an ultrasonic transducer (22) divided into a plurality of individually controllable transducer segments (24), the transducer segments (24) being concentric circles or rings, or portions thereof, b. Selecting a first group j (j = 1, 2, 3, ...) of transducer segments (24) such that when these transducer segments (24) are driven in parallel, a circular active area Fj of the ultrasonic transducer (22) results, and c , Performing an ultrasonic test of the test piece (10) with the first group j (j = 1, 2, 3, ...) of transducer segments (24), which are driven in parallel.