Phased Array Ultrasound Level II

In this course you will learn about one of the techniques of the ultrasound method through its phase arrangement technique, acquiring technical and practical knowledge for a correct application of the phase arrangement technology. The course meets the hours established in accordance with recommended practice SNT-TC-1A and ANSI/ASNT CP-189, issued by The American Society For Nondestructive Testing (ASNT).

  • Transmit all the theoretical and practical bases of the technique, making the candidate familiar in a practical way with the software of the instruments for their correct execution. Likewise, the participant is expected to understand the advantages and limitations of the technique, thus helping them to identify and evaluate any possible discontinuities found at the time of execution.

  • People who already have level I and II training in conventional ultrasound.

  • The course for the phased array ultrasound technique is a 10-day technical course, completing 80 hours of training and organized training, which are divided into two parts, part A, with a duration of 40 hours in 5 days and part B, with a duration of 40 hours in 5 days.

1.-Introduction.

  • PAUT Terminology.
  • History of PAUT-medical ultrasound, etc.
  • Responsibilities of certification levels.

2.- Basic principles of PAUT.

  • Review of ultrasonic wave theory: longitudinal and transverse wave.
  • Introduction to PAUT concepts and theory.

3.- Team.

Computer-based systems.

  • Processors.
  • Control panel that includes input and output sockets.
  • Block diagram showing the basic modules of the internal circuit.
  • Multi-element/multi-channel configurations.
  • Portable, battery-powered systems vs. completely computer-based systems.

Generation of focal laws.

  • Integrated focal law generator.
  • External focal law generator.

Probes.

  • Composite materials.
  • Step, space and size.
  • Passive plans.
  • Active plans
  • Phases: 1D, 2D, polar, annular, special shape, etc.
  • Formation of waves and beams.
  • Grid lobes.

Shoes.

  • Types of footing designs.

Scanners.

  • Mechanized.
  • Manual.

4.- Test techniques.

  • Linear scans.
  • Sector scanning.
  • Electronic scans.

5.- Standardization.

  • Checks of the active element and the probe.
  • Shoe delay.
  • Speed.
  • Exit point verifications.
  • Refraction angle checks.
  • Semsitivity.
  • DAC, TCG, TVG and ACG variables and parameters.
  • Effects of curvature.
  • Focus effects.
  • Beam direction.
  • Acquisition gates.

6.- Data collection.

  • Individual probes.
  • Multiple probes.

Uncoded scans.

  • Time-based data storage.

Coded scans.

  • Line scans.

Zone discrimination.

Scanning plans and exam coverage.

  • Sectoral.
  • Linenar.
  • Electronic scans.

Probe offsets and indexing.

7.- Procedures.

Specific applications.

Material evaluations.

  • Compounds.
  • Non-metallic materials.
  • Metal materials.
  • Base material scanning.
  • Bar, rod and rail.
  • Forges.
  • Foundry.

Component evaluations.

Ease with complex geometries.

  • Turbines (blades, rotors, etc.).
  • Axes.
  • Nozzles.
  • Flanges.

Geometric limitations.

  • Welding inspections.
  • Manufacturing in service.
  • Differences in material: carbon steel, stainless steel, high temperature chromium-nickel alloy, etc.
  • Review of welding discontinuities.

Responses of various discontinuities.

Data presentations.

  • Standard (A-scan, B-scan and C-scan).
  • Others (D-scan, S-scan, etc.).

Data evaluation.

  • Codes, standards and specifications.
  • Defect characterization.
  • Defect sizing.
  • Geometry.
  • Software tools.
  • Evaluation gates.

Reports.

  • Image outputs.
  • Onboard reporting tools.
  • Layout, ACAD, etc.