Oct 31, 2024  
2024-2025 College Catalog 
    
2024-2025 College Catalog

NDT 209 - Phased Array (PAUT) I and II

3 Credits, 3 Contact Hours
3 lecture periods 0 lab periods
Provides students with a basic knowledge of phased array ultrasonic testing (PAUT) consistent with other methods, and to acknowledge PAUT as unique enough to warrant an additional body of knowledge and qualification requirement.

Prerequisite(s): NDT 206  
Button linking to AZ Transfer course equivalency guide  

Course Learning Outcomes
  1. Demonstrate proficient knowledge of phased array and advanced ultrasonic testing.
  2. Demonstrate proficient knowledge of the application of phased array.
  3. Demonstrate proficient knowledge of how to set up and calibrate NDT equipment.
  4. Demonstrate proficient knowledge and basic understanding of ultrasonic theory.

Outline:
  1. Introduction
    1. Terminology of PAUT
    2. History of PAUT- medical ultrasound, etc.
    3. Responsibilities of levels of certification
  2. Basic Principles of PAUT
    1. Review of ultrasonic wave theory - longitudinal and shear-wave
    2. Introduction to PAUT concepts and theory
    3. Phasing
    4. Beam scanning patterns
    5. Delay laws and focal laws
    6. Imaging
    7. Dynamic depth focusing
  3. Equipment
    1. Computer based systems
    2. Focal law generator
    3. Probes
    4. Wedges
    5. Scanners
  4. Testing Techniques
    1. Linear scans
    2. Sectorial scans
    3. Electronic scans
  5. Standardization
    1. Active element and probe checks
    2. Wedge delay
    3. Velocity
    4. Exit point verification
    5. Refraction angle verification
    6. Sensitivity
    7. DAC, TCG, TVG, and ACG variables and parameters
    8. Effects of curvature
    9. Focusing effects
    10. Beam steering
    11. Acquisition gates
  6. Data Collection
    1. Single probes
    2. Multiple probes
    3. Multiple groups or multiplexing single/multiple probes
    4. Non-encoded scans
    5. Encoded scans
    6. Zone discrimination
    7. Scan plans
    8. Probe offset and indexing
  7. Procedures
    1. Specific applications
    2. Material evaluations
    3. Composites
    4. Nonmetallic materials
    5. Metallic materials
    6. Base material scan
    7. Bar, rod, and rail
    8. Forgings
    9. Castings
    10. Component evaluation
    11. Complex geometrics
    12. Weld inspection
  8. Data presentation
    1. Standard
    2. Other
    3. Data evaluation
    4. Codes
    5. Flaw characterization
    6. Flaw dimensioning
    7. Geometry
    8. Software tools
    9. Evaluation gate
  9. Reporting
    1. Imaging outputs
    2. Onboard reporting tools
    3. Plotting, ACAD, etc.


Effective Term:
Fall 2023