Location

Williamsburg, VA

Start Date

1-1-1986 12:00 AM

Description

Time delay spectrometry (TDS) uses a swept frequency source and a tracking receiver in the place of a conventional pulse-echo system for ultrasonic measurements. This technique can directly provide a frequency domain display of amplitude and even phase. Since the signal is of longer duration than that of a pulse-echo system, a large amount of averaging is intrinsic with this method, making it ideally suited for the study of highly attenuating materials.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

5A

Chapter

Chapter 3: Sensors and Signal Processing

Section

Signal Processing

Pages

759-765

DOI

10.1007/978-1-4615-7763-8_80

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Time and Frequency Domain Measurements of Materials with High Ultrasonic Attenuation Using Time Delay Spectroscopy

Williamsburg, VA

Time delay spectrometry (TDS) uses a swept frequency source and a tracking receiver in the place of a conventional pulse-echo system for ultrasonic measurements. This technique can directly provide a frequency domain display of amplitude and even phase. Since the signal is of longer duration than that of a pulse-echo system, a large amount of averaging is intrinsic with this method, making it ideally suited for the study of highly attenuating materials.