Advances in measuring rotation with MEMS accelerometers

J. D. Allmond, M. Hakhamaneshi, D. W. Wilson, B. L. Kutter

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    8 Scopus citations

    Abstract

    Model space, sensor frequency bandwidth, and sensor inventory limitations create challenges in capturing both the dynamic and static response of specimens in physical modeling. Micro-Electro Mechanical Systems (MEMS) based accelerometers are an attractive choice in centrifuge testing because of their small sensor size, robustness, and simplification of the sensor reference frame. In addition to capturing dynamic accelerations, MEMS at steady state measure the static component of centrifuge acceleration (an). Therefore, the change in an is directly related to the residual angle of the MEMS sensor after shaking. The process for combining MEMS inclination and acceleration measurements to obtain dynamic and static rotation is outlined. Results from two centrifuge tests are presented where MEMS were designed to capture rotations during foundation lateral slow cyclic testing, and post-event residual rotations of rocking structures. This method will help improve result accuracy while simplifying sensor configuration in centrifuge testing.

    Original languageEnglish
    Title of host publicationPhysical Modelling in Geotechnics - Proceedings of the 8th International Conference on Physical Modelling in Geotechnics 2014, ICPMG 2014
    PublisherTaylor and Francis - Balkema
    Pages353-359
    Number of pages7
    ISBN (Print)9781138022218
    DOIs
    StatePublished - 2014
    Event8th International Conference on Physical Modelling in Geotechnics, ICPMG 2014 - Perth, WA, Australia
    Duration: Jan 14 2014Jan 17 2014

    Publication series

    NamePhysical Modelling in Geotechnics - Proceedings of the 8th International Conference on Physical Modelling in Geotechnics 2014, ICPMG 2014
    Volume1

    Conference

    Conference8th International Conference on Physical Modelling in Geotechnics, ICPMG 2014
    Country/TerritoryAustralia
    CityPerth, WA
    Period01/14/1401/17/14

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