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Phased array Coupling solutions
Wedges for contact transducers
Imasonic offers a wide variety of wedges for contact
probes, fully adaptable to transducers and their conditions of use.
Main characteristics:
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| Single classic wedge |
Single wedge with roof angle |
TRL wedge |
Parameter |
Typical indicatives
values, can be changed on request |
Incidence angle |
35-70°SW in steel /
0-70° LW in steel / 0° (Delay line) |
Material |
Rexolite or Plexiglas |
Transducer attachment |
2 to 4 threaded metal inserts |
Anti-reverberation system |
Yes |
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Skew angle
on request |
Customized contact face
geometry to fit inspected parts of wedge focusing |
Option |
Typical indicative value,
can be changed on request. |
Interface with probe holder |
One hole on each lateral
side on the wedge. |
Water system |
Two water inlets connected
to a groove on the contact face |
Wearing pads |
4 carbide inserts on the
connect face to prevent excessive wear on wedge |
High temperature |
High temperature material
and integrated water cooling system. |
Plexiglas or Rexolite ?
These two materials are the most commonly
used for ultrasonic probe wedges.
Rexolite is a very interesting material with low attenuation
and low sound velocity of 2350 m/s. It is thus well adapted
for reduced-size wedges, allowing smaller angle, and for high
frequency probes (7.5 MHz and more), thanks to low attenuation
combined with shorter acoutic path.
Plexiglas is more resistant to abrasion.
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