Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

Two separate experiments, using different sample materials and sample geometries have been carried out using a number of different AE techniques and measurement systems. In both experiments the AE generated during tensile loading was measured and characterized. The types of AE measurements used simultaneously on each test included: (1) analog rms voltage measurements of the voltage induced at the piezoelectric transducer attached to the sample, (2) computer controlled standard resonant sensor (140 kHz) parameter measurements such as count, events, rise time, duration, etc., and (3) modal AE measurements providing actual wave forms of the AE events. Modal AE should provide distinct wave modes created by different AE sources. The outputs of both resonant piezoelectric and flat, high fidelity wide band transducers were captured with the waveform system. Each of the two experiments will be discussed separately below.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17A

Chapter

Chapter 1: Standard Techniques

Section

Acoustic Emission and Applications

Pages

509-516

DOI

10.1007/978-1-4615-5339-7_66

Language

en

File Format

application/pdf

Share

COinS
 
Jan 1st, 12:00 AM

A Comparison of AE Measurements from Aluminum Alloys and Glass/Epoxy Composites with Different AE Techniques

La Jolla, CA

Two separate experiments, using different sample materials and sample geometries have been carried out using a number of different AE techniques and measurement systems. In both experiments the AE generated during tensile loading was measured and characterized. The types of AE measurements used simultaneously on each test included: (1) analog rms voltage measurements of the voltage induced at the piezoelectric transducer attached to the sample, (2) computer controlled standard resonant sensor (140 kHz) parameter measurements such as count, events, rise time, duration, etc., and (3) modal AE measurements providing actual wave forms of the AE events. Modal AE should provide distinct wave modes created by different AE sources. The outputs of both resonant piezoelectric and flat, high fidelity wide band transducers were captured with the waveform system. Each of the two experiments will be discussed separately below.