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Proving the capabilities of the phased-array probe / ALOK inspection technique

: Bohn, H.; Kroenig, M.; Rathgeb, W.; Barbian, O.A.; Gebhardt, W.; Kappes, W.

Nuclear Engineering and Design (1987), Nr.102, S.361-368
ISSN: 0029-5493
Fraunhofer IZFP ()
ALOK; automated ultrasonic inspection; defect reconstruction; phased array; time-of-flight locus curve; TIMLOK

The capability of the ALOK phased-array inspection technique results from the simplicity of the testing system structure, the reflector detection and identification by means of transit time curves, and the analytical capacity of the system. Testing times are shortened, with the test results meeting the current standards, and further possibilities being given: Areas that so far only be inspected with difficulty of not at all, can be examined, thanks to the compact equipment and without having to modify the system, very informative analysis measurements for interpreting indications can be made. Furthermore, it may be expected from the testing practice that descriptions of indications will become more reliable and reproducible, due to transit time curve identification. An addition to conventional criteria for reflector evaluation, the potential of transit time curve identification, and flaw boundary imaging of the reconstruction image can be utilized. (IZFP)