TRAINING OBJECTIVES: This course is intended to provide a basic knowledge of ultrasonic  testing fundamentals sufficient to enable the technician to carry out ultrasonic testing to established procedures under the supervision of Level 2 or Level 3 personnel.

APPLICABLE STANDARDS: This program meets the requirements of SNT-TC-1A, BINDT/PCN, CAN/CGSB-48.9712 and ISO-9712.

RESPONSIBILITIES OF LEVEL 1 PERSONNEL: Level 1 personnel are defined as personnel who properly perform specific calibrations and specific evaluations for acceptance or rejection determinations, according to written instructions, and record results. Level 1 carry out industrial ultrasonics under the supervision of Level 2 or Level 3 personnel and shall receive the necessary instructions from a Level 2 or Level 3 individual.

COURSE OUTLINE:

  1. Introduction
    • Historical perspective of the use of ultrasound
    • Comparison with other commonly used NDT methods

 

  1. Fundamental Properties of Ultrasound
    • Definition of ultrasonic vibrations
    • Relationship of frequency velocity and wavelength
    • Diffraction theory
    • Modes of particle vibration
    • Ultrasound uses

 

  1. Generation of Ultrasonic Waves
    • Piezoelectric crystal types and characteristics
    • Search unit construction
    • Search unit characteristics: resolution; sensitivity
    • Search unit types: single element; dual element; Angle beam

 

  1. Test Material Characteristics
    • Velocity
    • Sound attenuation
    • Acoustic impedance

 

  1. Sound Beam Characteristics
    • Dead zone; Near zone; Far zone
    • Intensity variations
    • Probe diameter and frequency effect

 

  1. Angular Incidence
    • Reflection
    • Transmission
    • Refraction
    • Mode conversion
    • Critical angles
    • Snell's Law
  1. Ultrasonic Inspection Techniques
    • Through transmission
    • Pulse echo
    • Angle beam
    • Contact testing
    • Immersion testing

 

  1. Ultrasonic Testing Equipment
    • Basic pulse echo instrument
    • Control functions and uses
    • Information displays: A scan, B scan, C scan, digital readouts
    • Computer enhanced displays

 

  1. Ultrasonic Reference Blocks
    • Area amplitude blocks
    • Distance amplitude blocks
    • International Institute of Welding (IIW) block
    • Miniature angle beam calibration block
    • Uses of artificial reflectors compared

 

  1. Inspected Part Variations
    • Effect of surface roughness
    • Effect of surface coatings
    • Surface curvature
    • Parallelism
    • Grain size

 

  1. Discontinuity Variations
    • Size
    • Shape
    • Orientation
    • Distance from entry surface

NOTE: Participants are requested to have a calculator capable of scientific notation. Safety shoes are mandatory for all laboratory work.

Schedule:


Minimum class size: 4
Maximum enrolment: 8

Prerequisites:

Must Pass A Multiple Choice Math Proficiency Test either Online or Paper Form. Call NDEIT for exam info at (868)-653-9343.

Notes:

 

Click here for Math Prequalification Test information

 

 

ULTRASONICS LEVEL 1

Five days (40 hours)