R. Heumuller et al., EMPLOYING INNOVATIVE TECHNIQUES TO REDUCE INSPECTION TIMES, ATW-INTERNATIONALE ZEITSCHRIFT FUR KERNENERGIE, 42(3), 1997, pp. 173-176
Shorter inspection periods mean lower revision costs and less tight re
vision schedules, but must not detract from the quality of inspection
findings. This requirement imposes upon the company performing the ins
pection the need for top achievements both in quality management and i
n the use of innovative techniques. Flexible equipment systems and ins
pection techniques adapted to specific purposes are able to reduce ins
pection times in many inspection jobs. As part of a complete system de
signed to reduce inspection times, the new Saphir (Siemens Alok Phased
Array integrated Reliable UT-System) inspection equipment system is t
he core of most of the recent innovations. Being an integrated inspect
ion equipment system, it is able to handle conventional US probes as w
ell as arrays and phased arrays. It is open SOY further matching to sp
ecific inspection and administrative requirements and developments, an
d it may be incorporated in the network of an integrated system with a
database. A technological leap in probe design in the past few years
has allowed controllable wave fields to be generated which are in no w
ay inferior to those of conventional probes with fixed angles of incid
ence. In this way, a number of inspection techniques can be implemente
d with a single probe. This reduces inspection times, setup and retool
ing times, and doses. Typical examples already used in practice are th
e LLT (longitudinal-longitudinal-transverse waves) technique and the i
ntegration of inspections for longitudinal and transverse defects in a
single rtm. In the near future, surfaces with complicated curvatures
will be inspected by novel modular robot systems consisting of individ
ual modules of linear axes and rotational axes.