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Eddy Current Squiggly Lines - What the Heck Are They Anyway?
At its heart, eddy current testing is all about sending an electrical signal into a probe, creating magnetic fields, and watching how...
Ed Korkowski
5 days ago3 min read
14 views
0 comments
Dr. Förster’s Lasting Legacy: How His Innovations Shaped Modern Tube Testing
When we think about today’s advanced nondestructive testing (NDT) methods for heat exchanger tubing—whether in nuclear, chemical, or...
Ed Korkowski
May 63 min read
4 views
0 comments
Why Young People Aren’t Choosing the Trades — And Why It’s a Crisis
Across the country, industries like welding, plumbing, electrical work, and nondestructive testing (NDT) are facing a growing crisis: a...
Ed Korkowski
May 43 min read
24 views
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The Hidden Price of Cutting Corners: Lessons in Integrity for Nondestructive Testing
In nondestructive testing (NDT), our job is not just about finding cracks, porosity, or corrosion. It’s about protecting lives. Bob...
Ed Korkowski
May 22 min read
37 views
1 comment
Honoring Dr. Friedrich Förster: The Father of Modern Eddy Current Testing
In the world of nondestructive testing (NDT), few names command as much reverence as Dr. Friedrich Förster. His pioneering work not only...
Ed Korkowski
Apr 292 min read
45 views
0 comments
Bobbin Probes, Array Probes, and Rotating Probes: Choosing the Right Tool for Tubing Inspections
As eddy current testing (ECT) continues to evolve, especially in sectors like power generation, chemical processing, and aerospace, array...
Ed Korkowski
Apr 283 min read
13 views
1 comment


Why Impedance Matching Matters in Eddy Current Testing
The importance of imedpance matching in eddy current testing.
Ed Korkowski
Apr 282 min read
64 views
1 comment
There is No Room for Milquetoast in Eddy Current Testing
Let’s get one thing straight: eddy current testing isn’t for the timid. It’s not for the folks who nod along in meetings, avoid conflict,...
Ed Korkowski
Apr 253 min read
16 views
1 comment
What’s the Deal with All These 3-Letter Codes used in Eddy Current Testing of Tubing?
If you’ve ever looked at an eddy current tubing inspection report, you’ve probably seen entries like: SGA, R1 C2, 2.5v, 37°, M1,...
Ed Korkowski
Apr 205 min read
49 views
2 comments
Become a Certified NDT Instructor  100% Online, Self-Paced, and Built for the Real World
Are you ready to take your Nondestructive Testing (NDT) career to the next level? If you’re looking to become a certified instructor and...
Ed Korkowski
Mar 202 min read
38 views
0 comments
Troubleshooting Eddy Current Array Probe Noise: Adjusting Centering Feet for Lift-Off Control
Eddy current array probes bring a lot to the table—faster inspections, increased coverage, and enhanced defect detection. However, even...
Ed Korkowski
Mar 153 min read
56 views
1 comment
Eddy Current ETSS: Why Defining Essential Variables is Critical
Eddy Current Examination Technique Specification Sheets (ETSS) are a cornerstone of quality and repeatability in nondestructive testing...
Ed Korkowski
Mar 54 min read
52 views
3 comments
Becoming a Level III: Lessons from the 1979 ASNT Seminar
In the world of nondestructive testing (NDT), achieving Level III certification represents the pinnacle of expertise, requiring a blend...
Ed Korkowski
Mar 32 min read
138 views
0 comments
The Evolution of Eddy Current Testing for Nuclear Steam Generator Tubing
The Evolution of Eddy Current Testing for Nuclear Steam Generator Tubing Eddy current testing (ECT) of nuclear steam generator tubing has...
Ed Korkowski
Feb 213 min read
29 views
1 comment
The Nuclear Renaissance: Why the Technical Trades (including NDT) Are Poised for a Boom in the Age of AI and Clean Energy
The 1970s were a defining decade for the technical trades. As the nation embarked on an ambitious program to build nuclear power plants,...
Ed Korkowski
Feb 184 min read
15 views
0 comments
Eddy Current Mastery: From Butcher to Surgeon, or How to Be the Eddie Van Halen of NDT
When it comes to eddy current testing (ECT), there’s a world of difference between a skilled technician and someone who just knows the...
Ed Korkowski
Feb 154 min read
21 views
0 comments
Title: Eddy Current Mind Traps: How Analysts Can Break Free from Rigid Thinking
In the world of eddy current testing (ECT), analysts are trained to recognize patterns. They learn to interpret signals, identify flaws,...
Ed Korkowski
Feb 124 min read
15 views
0 comments
The Dangers of Using AI to Write Nondestructive Testing Procedures: A Perspective from an Eddy Current Expert
Artificial Intelligence (AI) has revolutionized many industries, offering unprecedented efficiency, scalability, and innovation. In the...
Ed Korkowski
Feb 114 min read
31 views
0 comments
Title: The Five Stages of Industry Grief: How Eddy Current Testing Won Over Skepticism
In the world of non-destructive testing (NDT), few technologies have faced as much initial resistance—and eventual acclaim—as eddy...
Ed Korkowski
Feb 103 min read
10 views
0 comments
Education Without Experience, Information Without Knowledge: A Dangerous Mix in NDT
In the world of Nondestructive Testing (NDT), education and information are invaluable. Yet, when education exists without hands-on...
Ed Korkowski
Feb 45 min read
22 views
0 comments
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