Wheel Defect Detection Using EMATs

Written by Anish Poudel, Ph.D., Principal Investigator I (NDT), Transportation Technology Center, Inc.
Figure 1. Comparison of EMAT principle with conventional piezoelectric-based UT principle.

Figure 1. Comparison of EMAT principle with conventional piezoelectric-based UT principle.

RAILWAY AGE MARCH 2022 ISSUE: Since 2020, Transportation Technology Center, Inc. (TTCI) has been conducting tests to evaluate the capability of electromagnetic acoustic transducer (EMAT) nondestructive evaluation (NDE) technology to detect internal defects in railroad wheels.

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