Record details

    Designs and test results for three new rotational sensors
    Evans, J. R.
    Hutt, C. R.
    Jedlička, Petr
    Kozák, Jan
Publication type
    článek v odborném periodiku
Source title - serial
    Journal of Seismology
    Roč. 16, č. 4
    s. 639-647
    Projekt: ME10008, GA MŠk, CZ3cav_un_auth*0263555
    Rozsah: 9 s.
    Výzkumný záměr: CEZ:AV0Z30120515
Subject category
    instrument design
    instrument testing
    rotational seismology
Abstract (in english)
   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.
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
Import date
    9. 12. 2013