Location

La Jolla ,CA

Start Date

1-1-1989 12:00 AM

Description

We describe a new NDE imaging technique based on eddy current detection of thermal waves. NDE applications of thermal-wave imaging techniques using detection by photoacoustic, piezoelectric, radiometric, and optical beam deflection methods are well known [1,2]. Saniie and Luukkala [3] previously reported generating thermal waves in metals with eddy currents, but we believe this is the first instance of detecting thermal waves with an eddy current probe. Since the method depends on detecting photothermally induced changes in the inductance of an eddy current coil, we have coined the term “photoinductive imaging” to describe this new technique.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

8A

Chapter

Chapter 2: Advanced Techniques

Section

Other New Techniques

Pages

599-606

DOI

10.1007/978-1-4613-0817-1_75

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Photoinductive Imaging: A New NDE Technique

La Jolla ,CA

We describe a new NDE imaging technique based on eddy current detection of thermal waves. NDE applications of thermal-wave imaging techniques using detection by photoacoustic, piezoelectric, radiometric, and optical beam deflection methods are well known [1,2]. Saniie and Luukkala [3] previously reported generating thermal waves in metals with eddy currents, but we believe this is the first instance of detecting thermal waves with an eddy current probe. Since the method depends on detecting photothermally induced changes in the inductance of an eddy current coil, we have coined the term “photoinductive imaging” to describe this new technique.