PAUT

Standards & Compliance

• ASME BPVC Section V Article 4 and Mandatory Appendix IV compliant procedures
• Inspection methodologies aligned with ASTM E2700 and ISO 13588
• Compliance with applicable API inspection requirements
• Code-compliant data acquisition, interpretation, and reporting
• Validated scan procedures and documented inspection records

Inspection Methodology

• High-resolution detection and sizing of weld discontinuities
• Inspection of welds, pressure equipment, pipelines, and structural components
• Advanced flaw characterization using phased array imaging techniques
• Applicable during fabrication, shutdown, maintenance, and in-service inspections
• Enhanced probability of detection (POD) for critical assets

Calibration & System Validation

A key aspect of our methodology is calibration and validation of system performance prior to inspection activities. This ensures reliable flaw detection sensitivity, accurate positioning, and repeatable scan performance under actual field conditions.

• IIW / V1 Calibration Block
• PAUT calibration blocks with side-drilled holes (SDH) and notches
• Encoder-based scan calibration and index verification tools
• Calibration of time base, velocity, and wedge delay
• Validation of focal laws and sectorial scanning performance
• Verification of beam angles, index offset, and scan coverage
• Establishment of sensitivity settings using TCG / DAC equivalent methods

Advanced Scanning Techniques

• Linear scanning techniques for focused beam inspection
• Sectorial (S-scan) scanning for multi-angle weld examination
• Compound scanning techniques for enhanced flaw coverage
• Development of optimized scan plans and focal law configurations
• Encoder verification for accurate position tracking and data integrity
• Control of coupling, surface condition, and scanning speed

Data Acquisition & Imaging

• A-scan signal acquisition and interpretation
• B-scan imaging for cross-sectional visualization
• C-scan mapping for area coverage analysis
• S-scan imaging for sectorial beam interpretation
• Digital recording and traceable inspection data management

Industry Applications

• Oil & Gas and Petrochemical Facilities
• Power Generation and Process Plants
• Marine and Offshore Structures
• Pressure Vessels, Pipelines, and Storage Tanks
• Fabrication, Infrastructure, and Heavy Engineering Projects

Why Choose AIE?

By integrating advanced phased array technology with robust calibration and validation practices, AIE delivers highly reliable, repeatable, and code-compliant PAUT inspection solutions. Our methodology significantly improves flaw detectability, enhances sizing accuracy, and supports the highest standards of asset integrity and operational safety.