Contact inspection of parts with irregular geometry
: Welds, bends, pipe repairs in nuclear power stations, turbine
2D phased array transducers are flexible, and can
thus ensure good coupling on the geometry of the inspected part.
The sensor integrates real-time measurement of each element's position,
and thus of the surface, so when it is used with compatible electronics,
the delay laws can be adapted in real time to steer the beam by
compensating for the variations of the interface.
The active part consists of
a flexible matrix integrating the active elements.
The flexibility of the assembly allows concave or convex deformation
in two dimensions, to adapt to complex profiles.
3D beam steering capability
Feasibility of certain inspections
Improvement in focusing quality by being freed from the interface
Increase in lateral resolution through the use of larger active
Configurations already developed*
Number of elements
Total operture (mm)
*These configurations have been developed and tested
for a given application. This list is not exhaustive, and the concepts
of 1D and 2D flexible transducers can be adapted to match other
The concept implemented in these transducers, of
updating the delay laws in real time according to the real position
of individual elements, is covered by a patent registered with the
CEA (Atomic Energy Commission, France).
IMASONIC holds the exclusive licence for the use of this patent
in designing and manufacturing these transducers.