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Calibration and Processing of Geophone Signals for Structural Vibration Measurements
University of Southern Denmark, Denmark.
University of Southern Denmark, Denmark.ORCID iD: 0000-0003-2025-7842
University of Southern Denmark, Denmark.
2010 (English)In: Structural Dynamics, Volume 3: Proceedings of the 28th IMAC, A Conference on Structural Dynamics, 2010 / [ed] Tom Proulx, Springer, 2010, Vol. 3, 1375-1379 p.Conference paper, Published paper (Refereed)
Abstract [en]

Geophones are highly sensitive motion transducers that have been used by seismologists and geophysicists for decades. The conventional geophone's ratio of cost to performance, including noise, linearity and dynamic range is unmatched by advanced modern accelerometers. However, the problem of this sensor is that it measures velocity, and that the linear frequency range is limited to frequencies above the natural frequency, typically at 4-12 Hz. In this paper an instrument is presented based on geophone technology. The sensor is aimed at low vibration level measurements on large civil structures, thus the problem of correcting the bad frequency response becomes essential. The instrument is based on a digitally wired system principle where time synchronization is obtained by GPS, and a good frequency response is secured by calibration and subsequent correction using inverse filtering techniques.

Place, publisher, year, edition, pages
Springer, 2010. Vol. 3, 1375-1379 p.
Series
Conference Proceedings of the Society for Experimental Mechanics Series, ISSN 2191-5644
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-56946DOI: 10.1007/978-1-4419-9834-7_121ISBN: 9781441998330 (print)ISBN: 9781441998347 (print)OAI: oai:DiVA.org:lnu-56946DiVA: diva2:1040109
Conference
28th International Modal Analysis Conference (IMAC), Jacksonville, USA, February 1-4, 2010
Available from: 2016-10-26 Created: 2016-09-28 Last updated: 2016-10-26Bibliographically approved

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Brandt, Anders
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf