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PAUT

Phased Array Ultrasonic Testing (PAUT) Services

Phased Array UT uses multi-element transducers to electronically steer and focus ultrasonic beams for advanced imaging.

What is Phased Array Ultrasonic Testing?

Phased Array Ultrasonic Testing (PAUT) is an advanced UT technique that uses multi-element transducers controlled electronically to generate focused beams that can be steered, scanned, and swept without mechanical movement. This enables real-time imaging of cross-sections, faster scanning speeds, and more reliable detection compared to conventional UT.

How PAUT Works

1

Multiple transducer elements fired with controlled time delays

2

Electronic beam steering and focusing

3

Sectorial (S-scan) and linear (L-scan) imaging

4

Real-time cross-sectional visualization

Applications of Phased Array Ultrasonic Testing

Critical weld inspection
Corrosion mapping
Crack sizing and characterization
Composite inspection
Turbine blade inspection
Pipeline inspection

Advantages

  • Superior imaging capabilities
  • Faster inspection speeds
  • Better defect characterization
  • Electronic steering eliminates mechanical scanning
  • Permanent digital records
  • Reduced operator dependence

Limitations

  • Higher equipment cost
  • Requires specialized training
  • Complex setup and calibration
  • Data interpretation requires expertise
  • Larger equipment than conventional UT

Applicable Standards & Codes

ASME Section V
ISO 13588
ISO 19285
ASTM E2491
EN 13588
DNVGL-ST-F101

Industries Using PAUT

Oil & Gas
Aerospace
Power Generation
Pipeline
Marine

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