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Designs and test results for three new rotational sensors

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    0381461 - GFÚ 2013 RIV NL eng J - Journal Article
    Jedlička, Petr - Kozák, Jan - Evans, J. R. - Hutt, C. R.
    Designs and test results for three new rotational sensors.
    Journal of Seismology. Roč. 16, č. 4 (2012), s. 639-647. ISSN 1383-4649. E-ISSN 1573-157X
    R&D Projects: GA MŠMT(CZ) ME10008
    Institutional research plan: CEZ:AV0Z30120515
    Keywords : rotational seismology * seismometry * instrument testing * instrument design
    Subject RIV: DC - Siesmology, Volcanology, Earth Structure
    Impact factor: 1.388, year: 2012

    We discuss the designs and testing of three rotational seismometer prototypes developed at the Institute of Geophysics, Academy of Sciences (Prague, Czech Republic). Two of these designs consist of a liquid-filled toroidal tube with the liquid as the proof mass and providing damping; we tested the piezoelectric and pressure transduction versions of this torus. The third design is a wheel-shaped solid metal inertial sensor with capacitive sensing and magnetic damping. Our results from testing in Prague and at the Albuquerque Seismological Laboratory of the US Geological Survey of transfer function and cross-axis sensitivities are good enough to justify the refinement and subsequent testing of advanced prototypes. These refinements and new testing are well along.
    Permanent Link: http://hdl.handle.net/11104/0211923

     
     
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