Location

Brunswick, ME

Start Date

1-1-1997 12:00 AM

Description

The conventional ways to evaluate the detectability of ECT probes are usually based on some type of Maxwell equations with use of the FEM or BEM method[1]. Though these approachs can give relatively accurate eddy current field and corresponding impedance, the numerical calculation needs a lot of computer memory and CPU time. This causes them a drawback in ECT probe optimization procedures. Moreover, probe optimization is not only related to the best choice of some parameters of a given probe configuration, but the configuration parameters such as the number and arrangement of exciting and pick-up coils also need to be adjusted and modified. Since the numerical method can not give us a clear image to connect the eddy current to the exciting field, the discovery of a new excellent probe is difficult if this approach is not improved.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

16A

Chapter

Chapter 4: NDE Sensors

Section

Electromagnetic Probes

Pages

989-996

DOI

10.1007/978-1-4615-5947-4_129

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

A Distinctive Featured Optimization Approach for ECT Probes

Brunswick, ME

The conventional ways to evaluate the detectability of ECT probes are usually based on some type of Maxwell equations with use of the FEM or BEM method[1]. Though these approachs can give relatively accurate eddy current field and corresponding impedance, the numerical calculation needs a lot of computer memory and CPU time. This causes them a drawback in ECT probe optimization procedures. Moreover, probe optimization is not only related to the best choice of some parameters of a given probe configuration, but the configuration parameters such as the number and arrangement of exciting and pick-up coils also need to be adjusted and modified. Since the numerical method can not give us a clear image to connect the eddy current to the exciting field, the discovery of a new excellent probe is difficult if this approach is not improved.