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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
  • Los Alamos National Laboratory Materials Science and Technology Division
  • Colorado State University
  • United States Department of Energy
  • New Mexico State University

Research output: Contribution to journalReview articlepeer-review

30 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
Article number114902
Pages (from-to)1-9
Number of pages9
JournalReview of Scientific Instruments
Volume76
Issue number11
DOIs
StatePublished - 2005

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