Circular Array Transducers
Internal tube inspection
The circular active part with radial radiation
allows 360° scanning of the inner wall of the tube, without
The radiating part can be cone-shaped to give the beam a non-zero
angle of incidence.
The design of this type of
probe must integrate the different constraints linked to the application
in a very interdependent way:
- The geometry of the tubes to be inspected: the diameter, lengths,
curvature, regularity of the geometry, defects to be detected
- The method of centring the probe and of traction in the tube
- The performance expected: the axial and lateral resolution
and the inspection speed
- The environmental constraints: the temperature pressure, radiation,
pressure, coupling liquid, etc;
- The cable length required.
In general, this type of probe
requires several design stages in order to validate the different
For this reason, we do not propose a standard configuration, or
even general characteristics, but we do recommend the preliminary
drawing up of a set of specifications integrating the above specifications.
Do not hesitate to contact
us for further information on this type of product, in particular
to assess the relevance of using it for your application.
"Circular phased array probes for inspection of Superphoenix steam generator
tubes", J Poguet, G Fleury - IMASONIC S.A. / O Burat & G Moreau - FRAMATOME
, EPRI Phased Array inspection seminar, September 1998, Portland, Main, USA
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