| Transducers |
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Sonatest
supply a full range of Ultrasonic Thickness Gauges, as well as an electromagnetic
gauge for measuring coating thickness on a metallic substrate. Our most
popular models are shown here.
Single
Compression Transducers
Also known as straight beam transducers, these are used to measure and
detect flaws on plates, bars, forgings, castings and extrusions. During
testing they are applied directly to the flat surfaces of the test material
or object, transducers with smaller diameters can be applied to slightly
curved materials.
Single
element contact transducers work by emitting compression (longitudinal)
waves into the test material. Due to the fact this type of transducer
comes into direct contact with the test material, wear plates are constructed
with highly durable materials. To find out more follow the above link.
Twin
Compression Transducers
Dual element contact transducers measure thickness and detect flaws and
corrosion in thin materials, especially where near surface resolution
is required. They focus very close to the front surface which makes them
ideal for pitting and corrosion tests, braze inspection and lamination
evaluation. This focusing effect makes it ideal for pipes and others curved
surfaces. To find out more follow the above link.
Angle
Beam Transducers
Angle Beam transducers allow the soundbeam to be introduced into the test
material at an angle. Plastic wedges of controlled geometry are attached
to the transducer active element in order to establish the desired angle.
Sonatest wedges are precision engineered to produce a refracted shear
wave within the test object at specific angles, as indicated on the housing.
The
refracted beam angle should be selected to ensure that the sound beam
angle will be perpendicular to the plane of expected flaws. In some cases
the geometry of the test object will dictate the selection of the beam
angle. To find out more follow the above link.
Immersion
Transducers
These transducers are usually used for mechanised or automatic systems,
in principle they function in the same way as contact compression transducers.
Many such application take place in immersion tanks filled with water,
where the test object is placed on a turntable or roller system so that
the object is moved at a constant speed past the probe. This technique
offers the best coupling conditions to provide reproducible results. To
find out more follow the above link.
Special
Transducers
At Sonatest we are capable of designing and manufacturing a wide range
of transducers to particular applications, ranging across all industries.
If your transducer requirements are not standard then we would be pleased
to hear from you. To see examples of such transducers
- The
Rail Probe
- HF
Wheel Probe
- Boiler
Tube Probes
- Asia
Single Angle
- Thickness
Meter Probes
-
Soft Tip Probes
- Roller
Probes
- TOFD
transducers
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