Joe Jessop
President
Criterion NDT

Joe Jessop is the President and co-founder of Criterion NDT, Inc., a provider of non-destructive eddy current testing systems, established July 2009. 

Joe became involved with eddy current testing in 1993, working for Zetec, Inc. as a field service data acquisition specialist and later a Level IIA Qualified Data Analyst where worldwide inspection of nuclear steam generator tubing was the focus.  Later Joe became the Supervisor of the Component Testing Applications Engineering group at Zetec and then the Business Manager of the Eddy Current Component Testing Group at Uson L.P.  

Joe and his colleagues acquired the eddy current business unit from Uson L.P. in 2009 and continue to support an already well established customer base worldwide.

Criterion NDT is the exclusive worldwide distributor of the Zetec Component Testing instrumentation and manufacturer of the application specific custom probes/coil and fixturing to support inline eddy current inspection systems.  Criterion NDT, Inc. now operates at a location in Auburn Washington, supporting manufacturers of components in 12 countries.

PRESENTATION: Advances in Eddy Current Verification of Heat Treat Processes
The latest generation of eddy current test instruments and probes enable manufactures to perform 100% in-line inspection of heat treated components reducing warranty, scrap, and testing costs.  The implementation of multi-frequency testing in conjunction with simplified user interfaces, allow these manufacturers to quickly create tests that effectively reject components with metallurgical defects such as misplaced case, shallow case, short quench, and ground out condition.  In a study performed with a major powder metal gear manufacturer, eddy current testing showed a higher consistency of results verses Rockwell hardness (HrB) testing.  In another application, a major supplier of automotive gears in Europe was able to design an extremely effective test to check for proper gear hardness on multiple sizes of gears. 

Beyond reducing scrap and warranty costs, a properly designed in-line eddy current system can help a company go “green” by reducing chemical consumption associated with off-line testing.  A major US OEM has implemented automated, in-line eddy current systems on all their production lines and has greatly reduced or eliminated their off-line and destructive testing processes.  It also enabled them to greatly reduce the labor costs associated with these off-line tests.