| 摘要 |
<p>The invention relates to a method for the non-destructive testing of a test object (100) by means of ultrasound, the method serving for characterizing flaws or discontinuities (99) in the material of the test object (100) in accordance with the DGS method, which are located in the near field of an ultrasonic transducer (12) used for generating the ultrasound. The method comprises: coupling ultrasonic pulses with a certain bandwidth B into the test object (100), as well as recording echo signals from the test object (100), and determining an equivalent reflector size ERS of a flaw or discontinuity (99) causing the recorded echo signals from received echo signals based on a DGS diagram, which was determined taking into consideration the bandwidth B of the insonified ultrasonic pulses. Furthermore, the invention relates to a device configured for carrying out the method according to the invention.</p> |
