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ASM Handbook

Nondestructive Evaluation of Materials

Edited by
Aquil Ahmad
Aquil Ahmad
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Leonard J. Bond
Leonard J. Bond
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ASM International
Volume
17
ISBN electronic:
978-1-62708-190-0
Publication date:
2018
Book Chapter

Basic Inspection Methods (Pulse-Echo and Transmission Methods)[1]

By
Leonard J. Bond
Leonard J. Bond
Revising author
Iowa State University
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Published:
2018
Page range:
169 - 183
Publication history
August 21, 2018

Abstract

This article considers the two primary methods used for ultrasonic inspection: pulse-echo and the transmission methods. Pulse-echo inspection can be accomplished with longitudinal, shear, surface (Rayleigh), or Lamb (plate) waves using a diverse range of transducers. The article discusses the principles of each of these inspection methods. It describes the applications and the basic data formats for single-element transducer-based systems, including A-scans, B-scans, and C-scans. The article provides information on electronic equipment used for ultrasonic inspection. It also describes how specific material conditions produce and modify A-scan indications. The article provides information on the controls and their functions for the display unit of the electronic equipment. It describes the techniques used for the identification and characterization of flaws, namely, surface (Rayleigh) wave and ultrasonic polar scan techniques.

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Leonard J. Bond, 2018. "Basic Inspection Methods (Pulse-Echo and Transmission Methods)", Nondestructive Evaluation of Materials, Aquil Ahmad, Leonard J. Bond

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