The effects of dispersion on time-of-flight acoustic velocity measurements in a wooden rod

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dc.citation.volume129
dc.contributor.authorBakar AHA
dc.contributor.authorLegg M
dc.contributor.authorKonings D
dc.contributor.authorAlam F
dc.coverage.spatialNetherlands
dc.date.available2023-03
dc.date.available2022-12-02
dc.date.issued2023-03
dc.description
dc.description.abstractThe stiffness of wood can be estimated from the acoustic velocity in the longitudinal direction. Studies have reported that stiffness measurements obtained using time-of-flight acoustic velocity measurements are overestimated compared to those obtained using the acoustic resonance and bending test methods. More research is needed to understand what is causing this phenomenon. In this work, amplitude threshold time-of-flight, resonance, and guided wave measurements are performed on wooden and aluminium rods. Using guided wave theory, it is shown through simulations and experimental results that dispersion causes an overestimation of time-of-flight measurements. This overestimation was able to be mitigated using dispersion compensation. However, other guided wave techniques could potentially be used to obtain improved measurements.
dc.description.publication-statusPublished
dc.format.extent106912 - ?
dc.identifierhttps://www.ncbi.nlm.nih.gov/pubmed/36528907
dc.identifierS0041-624X(22)00218-9
dc.identifier.citationUltrasonics, 2023, 129 pp. 106912 - ?
dc.identifier.doi10.1016/j.ultras.2022.106912
dc.identifier.eissn1874-9968
dc.identifier.elements-id458530
dc.identifier.harvestedMassey_Dark
dc.languageeng
dc.publisherElsevier BV
dc.relation.isPartOfUltrasonics
dc.subjectAluminium
dc.subjectAmplitude threshold
dc.subjectGuided waves
dc.subjectRod
dc.subjectToF
dc.subjectWood
dc.subjectElasticity Imaging Techniques
dc.subjectUltrasonography
dc.subjectAcoustics
dc.subjectVibration
dc.subjectPhantoms, Imaging
dc.subject.anzsrc0203 Classical Physics
dc.subject.anzsrc0912 Materials Engineering
dc.subject.anzsrc0913 Mechanical Engineering
dc.titleThe effects of dispersion on time-of-flight acoustic velocity measurements in a wooden rod
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Food and Advanced Technology
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