Ultrasonic measurements on poroelastic slabs : determination of reflection and transmission coefficients and processing for Biot input parameters

J. Jocker, D.M.J. Smeulders

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Scopus)

Abstract

Ultrasonic reflection and transmission measurements on saturated, plane-parallel, poroelastic slabs are presented. A data processing technique is proposed to obtain poroelastic parameters from transmission measurements. A special experimental data acquisition and processing technique is applied to minimize the finite beam effects of the transducers. This technique yields results which can be compared with poroelastic plane-wave theory. Results of normal- and oblique-incidence measurements are presented, and transmission data are processed to yield wave speeds, sample thickness, angle of incidence, tortuosity, and permeability. The results show good agreement with independent measurements, and they are subsequently used as input for a forward modeling of the complete transmitted and reflected waveforms utilizing Biot theory. The agreement between recorded and modeled signals is good, both in time and frequency domain.
Original languageEnglish
Pages (from-to)319-330
Number of pages12
JournalUltrasonics
Volume49
Issue number3
DOIs
Publication statusPublished - 2009

    Fingerprint

Cite this