Digital ultrasonic pulse-echo overlap system and algorithm for unambiguous determination of pulse transit time

Cristian Pantea, Dwight G. Rickel, Albert Migliori, Robert G. Leisure, Jianzhong Zhang, Yusheng Zhao, Sami El-Khatib, Baosheng Li

Research output: Contribution to journalReview articlepeer-review

18 Scopus citations

Abstract

We report an evolution of an all-digital ultrasonic pulse technique for measurements of elastic constants of solids. An unambiguous analytical procedure is described for determining the correct time delay of echoes without any need for actual echo overlap. We also provide a simple procedure for making corrections for transducer-bond-induced phase shifts. The precision of a measurement made with this system at ambient temperature exceeds one part in 107 without the use of mixers, gates, time delays, and other complications normally associated with such measurements.

Original languageEnglish (US)
Article number114902
Pages (from-to)1-9
Number of pages9
JournalReview of Scientific Instruments
Volume76
Issue number11
DOIs
StatePublished - 2005

Bibliographical note

Funding Information:
This work was performed under the auspices of the National Science Foundation, the State of Florida, and the US Department of Energy.

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