Your One-Stop Resource for Eddy Current Testing

Explore training, technical references, interactive calculators, videos, equipment, and industry insights — all in one place.

EDDY CURRENT TESTING ACROSS INDUSTRIES

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About Us

EddyCurrent.com is an independent resource dedicated to advancing the knowledge and practice of eddy current testing. We connect technicians, engineers, researchers, and industry professionals with training, technical tools, research, equipment information, and practical insights.

Eddy Current Training Videos with Ed Korkowski

Watch nearly 200 free videos created by Ed Korkowski, ASNT Level III in Electromagnetic Testing. Follow hands-on demonstrations using real instruments and reference samples to see how probe selection, test frequency, and instrument setup affect eddy current signals.

Watch Ed’s Training Videos Online ET Training

Search 850+ Eddy Current & Electromagnetic Testing Videos

Find a specific inspection application, technique, or instrument across Ed’s training videos and manufacturer demonstrations. Use chapter links to jump directly to a topic when they’re available.

Try bolt-hole inspection, tubing inspection, ECA, RFT, NFT, ACFM, PEC, or Barkhausen noise.

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Industrial Applications & Inspection Guides

Eddy Current Testing: Applications & Limitations

Explore common eddy current inspection applications, industry uses, testing techniques, capabilities, and limitations.

Industrial Eddy Current Sensors

Explore industrial eddy current sensors, automated inspection systems, displacement measurement, and production-line quality control applications.

Heat Exchanger Tubing

Explore eddy current testing of heat exchanger tubing, including frequency selection and techniques for nuclear, petrochemical, and HVAC.

AI Data Center Cooling

Explore how eddy current testing helps assess chiller and heat exchanger tubing integrity in critical data center cooling systems.

Education & Technical Learning

Online ECT Training

Professional eddy current testing courses taught by an experienced ASNT Level III instructor.

Videos & Tutorials

Watch eddy current testing demonstrations, instructional videos, and tutorials.

NDT Training Institutions

Explore NDT schools, colleges, and training institutions throughout the United States.

ECT Certification & Qualification

Explore eddy current certification, training, exams, and Level I–III responsibilities.

Ed's ECT Blog

Practical lessons from Ed Korkowski’s 35+ years in eddy current testing.

Eddy Current Equipment & Calibration Resources

Types of ECT Equipment

Explore different types of eddy current instruments, from portable flaw detectors and tubing systems to arrays and automated production testers.

Equipment Selection Guide

Learn how to select eddy current testing equipment, probes, and array systems based on inspection requirements, instrument capabilities, and performance considerations.

Equipment & Software

Explore leading eddy current testing equipment manufacturers, instruments, inspection software, and advanced technologies for conventional, array, tubing, and automated testing applications.

Probes and Cables

Explore eddy current probes, including pencil, rotating, conductivity, bobbin, and array probes, along with specialized cables, connectors, and adapters for a wide range of inspection applications.

Reference Standards

Explore eddy current calibration blocks, reference tubes, artificial discontinuities, and standards used to establish inspection sensitivity, verify equipment performance, and support reliable flaw detection and sizing.

Equipment Calibration

Learn when annual calibration is required and find independent labs that service current and legacy eddy current instruments.

Eddy Current Industry & Professional Resources

World NDT Societies

Explore NDT societies and professional organizations worldwide, connecting you with industry resources, technical expertise, and certification information.

NDT Careers

Explore career opportunities in nondestructive testing, eddy current inspection, aerospace, nuclear power, and related industries.

Eddy Current Service Providers

Explore leading eddy current inspection service providers offering heat exchanger tubing inspections, aerospace NDT, and specialized industrial testing services.

ECT Data Analysis & Oversight

Explore eddy current signal interpretation, automated analysis, analyst resolution, and independent Level III oversight.

Level III Services

Explore expert Eddy Current Level III consulting for inspection planning, equipment selection, procedure development, personnel qualification, acceptance criteria, and technical oversight.

Energy Links

Explore links to companies and organizations across the energy industry.

Eddy Current Technical Tools & References

Calculators & Apps

Interactive eddy current formulas, calculators, and technical visualizations.

Conductivity/Resistivity Tables

Search electrical conductivity, resistivity, and %IACS reference values for hundreds of metals and alloys used in eddy current testing.

Eddy Current FAQs

Get answers to 50 common questions about eddy current testing, from choosing a probe and test frequency to interpreting signals and understanding inspection limitations.

Codes and Standards

Find industry requirements, recommended practices, and technical guidance relevant to ECT.

Research & Publications

Explore historical and contemporary research, technical papers, and publications related to eddy current testing.

ECT Pioneers

Discover the pioneers who shaped the science and development of eddy current testing.

Eddy Current Phase Analysis

Explore phase angle interpretation, multifrequency testing, flaw signal behavior, and mix suppression techniques.

Technical Library

Explore a curated collection of books and technical references covering eddy current testing, electromagnetic inspection, and nondestructive testing methods.

Testimonials

What our clients say!

Weekend ET Bootcamp Client

“ Awesome Eddy Current knowledge”. The “Wikipedia” of all things, Eddy Current. I reached out to Ed on a whim and inquired about possible specific training. After gathering some basic info about myself and my training goals, we scheduled a time. Ed was very accommodating to my training goal. Was able to cover this training over a weekend without having to take many days off from my full time job. I would highly recommend Ed for your training needs.... Thanks again Ed!

Olvmpus Nortec Minimite Bolt Hole Scanner and Probes Eddy Current

AAA+++ service Items were in excellent condition. seller communicate well on the item he was selling. I will purchase more items in the future trom seller. Seller is very kowledgeble on the eddy Current subject. I am looking toward to taking courses on Eddy Current Classes from seller .

Waygate Mentor EM Eddy Current Instrument

An excellent experience purchasing used NDT equipment. The seller is knowledgeable, professional, and a pleasure to work with. I would confidently buy from him and his site again.

Olvmpus Nortec Minimite Bolt Hole Scanner and Probes Eddy Current

Waygate Mentor EM Eddy Current Instrument

An excellent experience purchasing used NDT equipment. The seller is knowledgeable, professional, and a pleasure to work with. I would confidently buy from him and his site again.

Your One-Stop-Resource for Eddy Current Testing