Skip to Main Content
ASM Desk Editions

Metals Handbook Desk Edition

Edited by
Joseph R. Davis
Joseph R. Davis
Davis & Associates
Search for other works by this author on:
ASM International
ISBN electronic:
978-1-62708-199-3
Publication date:
1998
Book Chapter

Eddy-Current Inspection

Published:
1998
Page range:
1275 - 1281

Abstract

Eddy-current inspection is a nondestructive evaluation method based on the principles of electromagnetic induction. Eddy-current methods are used to identify or differentiate a wide variety of physical, structural, and metallurgical conditions in electrically conductive ferromagnetic and nonferromagnetic metals and metal parts. Giving a brief introduction on the uses of eddy-current inspection, this article discusses the operating principles and the principal operating variables encountered in eddy-current inspection, including coil impedance, electrical conductivity, magnetic permeability, lift-off and fill factors, edge effect, and skin effect. It further describes different aspects of eddy current testing such as the selection of inspection frequencies and the types and configurations of inspection coils. The article also deals with the eddy current instrumentation and the discontinuities that are detectable by eddy-current methods.

You do not currently have access to this content.
Don't already have an account? Register

1998. "Eddy-Current Inspection", Metals Handbook Desk Edition, Joseph R. Davis

Download citation file:


Close
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal