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Introduction to Eddy Current Testing
Introduction Basic Principles History of ET Present State of ET
The Physics Properties of Electricity Current Flow & Ohm's Law Induction & Inductance Self Inductance Mutual Inductance Circuits & Phase Impedance Depth & Current Density Phase Lag
Instrumentation Eddy Current Instruments Resonant Circuits Bridges Impedance Plane Display - Analog Meter
Probes/Coil Design Probes - Mode of Operation Probes - Configuration Probes - Shielding & Loading Coil Design
Procedure Issues Reference Standards Signal Filtering
Applications Surface Breaking Cracks SBC using Sliding Probes Metal Thinning (Corrosion) Tube Inspection Conductivity Heat Treat Verification Thickness of Thin Mat'ls Thickness of Coatings
Advanced Techniques Scanning Multi-Frequency Tech. Swept Frequency Tech. Pulsed ET Tech. Background Pulsed ET Remote Field Tech. Impedance Matching
Quizzes Formulae & Tables EC Standards & Methods EC Material Properties
Partial support for this work was provided by the NSF-ATE (Advanced Technological Education) program through grant #DUE 0101709.
Opinions expressed are those of the authors and not necessarily those of the National Science Foundation.
