Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Low-frequency electromagnetic (eddy-current) holography for imaging in conductors

Not Accessible

Your library or personal account may give you access

Abstract

Typical eddy-current system test data consist of the values of the system’s probe impedance. The wave theory that links the phase response of the eddy-current probe impedance to the defect location relative to the probe is presented. The technique of phase multiplying the diffraction-limited hologram generated from the probe impedance is discussed. The effects and limitations of this technique are illustrated with a mathematical model of the eddy-current probe. Experimental data are presented that confirm the theoretical analysis and illustrate the ability to focus eddy-current holographic data by using backward wave propagation.

© 1993 Optical Society of America

Full Article  |  PDF Article
More Like This
Nondestructive testing of resistance spot welds using eddy current thermography

Abdoulaye Taram, Cyrielle Roquelet, Philip Meilland, Thomas Dupuy, Christine Kaczynski, Jean-Luc Bodnar, and Thierry Duvaut
Appl. Opt. 57(18) D63-D68 (2018)

Quantification of closed cracks in railway using eddy current pulsed thermography

Hui Yin, Jianping Peng, Xiang Zhang, Kang Tian, Yu Zhang, and Jianqiang Guo
Appl. Opt. 60(17) 5195-5202 (2021)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (15)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (23)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved