Location

La Jolla, CA

Start Date

1-1-1993 12:00 PM

Description

This paper provides a description of the basic working principles underlying a new kind of eddy current-based inspection technology called magneto-optic/eddy current imaging [1–4]. By combining magneto-optic imaging and eddy current excitation in an unconventional manner, it is now possible to obtain real-time eddy current images of fatigue cracks and areas of hidden corrosion in structures such as the fuselage of an aging aircraft. The paper begins with a description of working principles, then turns to specific examples of inspections performed on representative samples of commonly encountered airframe components, areas for potential improvement of the technology, and finally, new applications.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

12A

Chapter

Chapter 2: Emerging Inspection Technologies

Section

Electromagnetic Techniques

Pages

617-624

DOI

10.1007/978-1-4615-2848-7_78

Language

en

File Format

application/pdf

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Jan 1st, 12:00 PM

The present status of magneto-optic eddy current imaging technology

La Jolla, CA

This paper provides a description of the basic working principles underlying a new kind of eddy current-based inspection technology called magneto-optic/eddy current imaging [1–4]. By combining magneto-optic imaging and eddy current excitation in an unconventional manner, it is now possible to obtain real-time eddy current images of fatigue cracks and areas of hidden corrosion in structures such as the fuselage of an aging aircraft. The paper begins with a description of working principles, then turns to specific examples of inspections performed on representative samples of commonly encountered airframe components, areas for potential improvement of the technology, and finally, new applications.