Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

Electromagnetic acoustic transducers (EMATs) are ideal for on-line inspection of hot metal sheets, because they provide a noncontacting means for generating and detecting ultrasound in metals. EMATs are especially attractive for probing steels and magnetic alloys, because their transduction efficiency is larger than in nonferromagnetic materials. The source of the enhanced efficiency is magnetostriction, the change of length of a ferromagnetic material that accompanies magnetization.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17B

Chapter

Chapter 6: Materials Characterization

Section

Materials Properties

Pages

1485-1492

DOI

10.1007/978-1-4615-5339-7_192

Language

en

File Format

application/pdf

Share

COinS
 
Jan 1st, 12:00 AM

Magnetostrictive Emat Efficiency as a Materials Characterization Tool

La Jolla, CA

Electromagnetic acoustic transducers (EMATs) are ideal for on-line inspection of hot metal sheets, because they provide a noncontacting means for generating and detecting ultrasound in metals. EMATs are especially attractive for probing steels and magnetic alloys, because their transduction efficiency is larger than in nonferromagnetic materials. The source of the enhanced efficiency is magnetostriction, the change of length of a ferromagnetic material that accompanies magnetization.