Self-paced online training with voiced lessons, hands-on 3-D practice and lifetime access.
Built to ANSI/ASNT CP-105-2024 ET Topical Outlines
Level I, course length
40h
Level II, course length
40h
SNT-TC-1A 2024 (L1/L2)
40/40h
NAS410 (L1/L2)
40/40h
Direct to Level II
80h
CWI 9-year PDH
40PDH/lv
Eligible to submit toward AWS CWI 9-year recertification under QC1 Section 16. Each contact hour of completed training may be documented as 1 PDH. How NDT hours map to PDHs
From $599$449.25 per level
Both levels $823.50
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About this course
Eddy Current Testing training covers electromagnetic induction, impedance plane analysis, probe selection, surface and bolt-hole inspection, conductivity and coating thickness measurement, and an introduction to eddy current array techniques.
For technicians inspecting conductive materials, including fastener holes, wheels, and aircraft structures. Compare the course outline with your employer's equipment, inspection procedures, and Level I or Level II training requirements.
63 LESSONS · 16 MODULES · 80 DESIGNED TRAINING HOURS
Hours that count
Active-engagement tracking
Your formal training hours accrue only while you're actively working in a lesson, idle time and hidden tabs pause the clock. The hour ledger is exportable for your employer's written practice.
Traceability
Review the course outline
Review the lesson topics below with your employer or responsible Level III to confirm this course fits your training requirements. Get the employer review packet.
Curriculum
What you'll learn
Level I40 hours
Level I eddy current testing covers the history and physics of electromagnetic induction, eddy current generation and properties, sensing elements and probe types, selection of inspection parameters, readout mechanisms, and hands-on lab demonstrations. Trainees learn to perform standardized eddy current tests under the supervision of a Level II or III.
01
Introduction to Eddy Current Testing
3 lessons · 3 h
ECT Level I Theory Course 1.0
History and Development of Eddy Current Testingvideodiagram60 min
Basic Physics: Varying Magnetic Fields and Inductionvideointeractivediagram60 min
Primary and Secondary Field Relationshipsnarrationdiagramsimulation60 min
MODULE QUIZ, 10 questions · 80% to pass
02
Electromagnetic Theory: Eddy Current Generation and Impedance
4 lessons · 5 h
ECT Level I Theory Course 2.0 (2.1.1-2.1.3)
Generation of Eddy Currents by an AC Fieldvideosimulationdiagram75 min
Fields Created by Eddy Currents and Impedance Changesvideodiagramsimulation75 min
Effect of Impedance Change on Instrumentationnarrationdiagram75 min
Reading the Impedance Planesimulationvideoreference75 min
MODULE QUIZ, 10 questions · 80% to pass
03
Properties of Eddy Currents
5 lessons · 6 h
ECT Level I Theory Course 2.0 (2.1.4)
Circular Flow and Surface Concentrationvideodiagramsimulation75 min
Strength, Timing, Orientation, and Current Magnitudenarrationdiagram75 min
Frequency, Phase, and Depth of Penetrationvideosimulationreference75 min
Conductivity and Permeability Effectsvideosimulationdiagram75 min
Geometrical Effectsvideodiagram60 min
MODULE QUIZ, 10 questions · 80% to pass
04
Theory Lab Demonstrations
3 lessons · 3 h
ECT Level I Theory Course 3.0
Lab: Generating Z-Curves with Conductivity Samplesvideosimulationreference75 min
Lab: Generating Liftoff Curvesvideosimulation75 min
Level I Conductivity and Liftoff Bench Practicalinteractivediagram30 min
MODULE QUIZ, 10 questions · 80% to pass
05
Eddy Current Sensing Elements
5 lessons · 6 h
ECT Level I Basic Technique Course 1.0
Probe Coil Arrangementsvideodiagram75 min
Modes of Operation: Absolute, Differential, and Hybridvideosimulationdiagram75 min
Hall Effect Sensorsvideodiagram75 min
Applications, Advantages, and Limitationsvideoreference75 min
Factors Affecting Choice of Sensing Elementsinteractivediagram60 min
MODULE QUIZ, 10 questions · 80% to pass
06
Selection of Inspection Parameters
4 lessons · 6 h
ECT Level I Basic Technique Course 2.0
Test Frequency Selectionvideosimulationreference90 min
Drive Current and Voltage Settingsvideodiagram90 min
Gain, Display Sensitivity, and Standardizationvideosimulationreference90 min
Filtering and Thresholdsvideosimulation90 min
MODULE QUIZ, 10 questions · 80% to pass
07
Readout Mechanisms
4 lessons · 5 h
ECT Level I Basic Technique Course 3.0
Meters and Impedance Plane Displaysvideodiagram75 min
Data Recording, Alarms, and Numerical Readoutsvideoreference75 min
Marking, Sorting, and Cutoff Systemsvideodiagram75 min
Automation and Feedbackvideointeractive75 min
MODULE QUIZ, 10 questions · 80% to pass
08
Technique Lab Demonstrations
5 lessons · 6 h
ECT Level I Basic Technique Course 4.0
Lab: Filter Effects on Rotating Reference Standardsvideosimulationreference75 min
Lab: Liftoff and Frequency Effectsvideosimulation75 min
Lab: Rotational and Forward Speed Effectsvideosimulation90 min
Lab: Generating a Z-Curve with Conductivity Standardsvideosimulationreference90 min
Integrated Dynamic-Signal Acquisition and Analysis Practicalinteractivediagram30 min
MODULE QUIZ, 10 questions · 80% to pass
FINAL EXAM, 50 questions · 80% to pass · drawn from the ECT Level 1 bank
Level II40 hours
Level II eddy current testing builds on Level I theory with in-depth study of coil impedance factors, signal-to-noise ratio, test frequency selection, coupling, field strength, and instrument design, then applies them through standards, operating procedures, signal classification, flaw sizing, conductivity sorting, and thickness evaluation. Trainees learn to set up, standardize, interpret, and evaluate eddy current tests against acceptance criteria.
01
Review of Electromagnetic Theory
3 lessons · 3.8 h
ECT Level II Principles Course 1.0
Eddy Current Theory Reviewvideoreference75 min
Types of Eddy Current Sensing Probesvideodiagram75 min
Impedance Plane Masterysimulationvideoreference75 min
MODULE QUIZ, 10 questions · 80% to pass
02
Factors that Affect Coil Impedance
4 lessons · 6 h
ECT Level II Principles Course 2.0
Test Part Factors: Conductivity and Permeabilityvideosimulation90 min
Test Part Factors: Mass and Homogeneityvideodiagram90 min
Test System Factors: Frequency, Coupling, and Field Strengthsimulationvideo90 min
Test Coil Shape and Hall Effect Elementsvideodiagramreference90 min
MODULE QUIZ, 10 questions · 80% to pass
03
Signal-to-Noise Ratio
3 lessons · 4.5 h
ECT Level II Principles Course 3.0
Defining Signal-to-Noise Ratiovideodiagram90 min
SNR in Eddy Current Testingvideosimulation90 min
Methods of Improving SNRvideosimulationreference90 min
MODULE QUIZ, 10 questions · 80% to pass
04
Selection of Test Frequency
4 lessons · 5 h
ECT Level II Principles Course 4.0
Frequency and Type of Testvideosimulation75 min
Noise Causes and Reduction: Saturation, Shielding, Groundingvideodiagram75 min
Phase Discrimination and Response Speedsimulationvideo75 min
Skin Effectvideosimulationreference75 min
MODULE QUIZ, 10 questions · 80% to pass
05
Coupling and Field Strength
4 lessons · 5 h
ECT Level II Principles Course 5.0-6.0
Fill Factorvideodiagramsimulation75 min
Liftoffvideosimulation75 min
Field Strength: Permeability Changes and Saturationvideodiagram75 min
AC Field Strength Effects on Eddy Current Testingvideosimulation75 min
MODULE QUIZ, 10 questions · 80% to pass
06
Instrument Design Considerations
3 lessons · 4 h
ECT Level II Principles Course 7.0
Amplificationvideodiagram75 min
Phase Detectionvideosimulation75 min
Differentiation and Filteringvideosimulationreference90 min
MODULE QUIZ, 10 questions · 80% to pass
07
Standards and Operating Procedures
4 lessons · 4.5 h
ECT Level II Techniques and Applications Course 1.0
Standards and Specifications in Eddy Current Testingvideoreference75 min
Working from Written Operating Proceduresvideointeractive75 min
Procedure Compliance, Records, and Reportingvideoreference75 min
Level II Procedure and Standardization Jobinteractivediagram45 min
MODULE QUIZ, 10 questions · 80% to pass
08
Inspection System Output and Evaluation
5 lessons · 7.3 h
ECT Level II Techniques and Applications Course 2.0
Accept/Reject Criteria and Signal Classificationvideointeractive75 min
Detection of Signals of Interest: Near and Far Surfacevideosimulation90 min
Flaw-Sizing Techniques and Flaw Frequencyvideosimulationreference90 min
Conductivity Sorting and Thickness Evaluationvideosimulation90 min
Measurement of Ferromagnetic Propertiesvideodiagramreference90 min
MODULE QUIZ, 10 questions · 80% to pass
FINAL EXAM, 50 questions · 80% to pass · drawn from the ECT Level 2 bank
Roadmap
Advanced techniques in development
Alternating Current Field Measurement (ACFM) · Remote Field Testing (RFT) · Magnetic Flux Leakage (MFL) · Eddy Current Array (ECA)
Questions about Eddy Current Testing
What does eddy current testing training cover?
The course progresses from electromagnetic induction and impedance-plane fundamentals to probe selection, scanning, conductivity, bolt-hole inspection and interpretation. The module outline shows the topics for each level.
Is this course relevant to aerospace inspection?
ET is used for inspection of conductive materials, including many aerospace applications. Compare the syllabus with the methods, equipment and qualification requirements in your employer's written practice before choosing a level.
Can I take ET Level II without repeating Level I?
A separate Level II purchase is available. Ask your employer or Responsible Level III to confirm your accepted prior training and experience; purchasing the course does not itself establish Level II eligibility or certification.
