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Effect of surface unevenness on non-contact surface wave measurements using a rolling microphone array
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.ORCID iD: 0000-0002-5665-8288
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
2015 (English)In: 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: Volume 34 / [ed] Dale E Chimenti and Leonard J. Bond, American Institute of Physics (AIP), 2015, Vol. 1650, p. 128-135Conference paper, Published paper (Refereed)
Abstract [en]

Surface wave velocity is measured and evaluated along a straight survey line in order to compare two different data acquisition methods. Results from a rolling microphone array are compared to data acquired using a conventional accelerometer. Results from the two different data acquisition methods are shown to be similar. However, it is demonstrated that the results are very sensitive to misalignments between the microphone array and the measured surface. Practices to overcome problems with misalignments are discussed and demonstrated.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2015. Vol. 1650, p. 128-135
Keywords [en]
Microphones, velocity measurements, data acquisition, surface measurements, surface waves
National Category
Geotechnical Engineering
Research subject
Civil and Architectural Engineering
Identifiers
URN: urn:nbn:se:kth:diva-199236DOI: 10.1063/1.4914602ISBN: 978-0-7354-1292-7 (print)OAI: oai:DiVA.org:kth-199236DiVA, id: diva2:1061179
Conference
41st Annual Review of Progress in Quantitative Nondestructive Evaluation,20–25 July 2014,Idaho
Note

QC 20160109

Available from: 2016-12-31 Created: 2016-12-31 Last updated: 2017-01-09Bibliographically approved

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fulltext(472 kB)23 downloads
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Bjurström, HenrikRydén, Nils
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