PortalConventional (Pulse-Echo)
Traditional manual scanning with a single transducer, the reference for weld and plate inspection.
Volumetric Method
Ultrasonic Testing (UT)
Detection of internal discontinuities using high-frequency sound waves, with multiple techniques for the application.
ASTM E164ASME V Art. 4/5AWS D1.1
The Process
How It Works
Ultrasonic testing (UT) uses high-frequency sound waves to detect internal discontinuities (inclusions, lack of fusion, porosity and cracks) not visible to surface methods. It is one of the few NDT methods able to assess the thickness and volumetric integrity of a material, with different techniques depending on geometry complexity and project requirements.
In the Field
Photo Record
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Applicable Techniques
Types and Variants
Phased Array (PAUT)
Multiple piezoelectric elements allow electronic scanning and sectorial imaging, with higher resolution and digital recording.
TOFD (Time of Flight Diffraction)
High-precision technique for sizing discontinuities, widely used on critical welded joints.
Immersion
Part and transducer immersed in a coupling-liquid tank, suited to automated inspection of complex components.
When to Use
Where We Apply It
- Welded joints of tanks and pressure vessels
- Thickness measurement on piping
- Inspection of castings and forgings
- Replacement for radiography in restricted-access areas
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