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Adaptation of the S-5-S Pendulím Seismometer for Measurement of Rotational Ground Motion
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SYSNO ASEP 0382667 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Adaptation of the S-5-S Pendulím Seismometer for Measurement of Rotational Ground Motion Author(s) Knejzlík, Jaromír (UGN-S)
Kaláb, Zdeněk (UGN-S) RID
Rambouský, Zdeněk (UGN-S)Number of authors 3 Source Title Journal of Seismology. - : Springer - ISSN 1383-4649
Roč. 16, č. 4 (2012), s. 649-656Number of pages 8 s. Publication form www - www Language eng - English Country NL - Netherlands Keywords rotational ground motion ; experimental measurement ; mining induced seismicity ; S-5-S seismometer Subject RIV DC - Siesmology, Volcanology, Earth Structure Institutional support UGN-S - RVO:68145535 UT WOS 000308328000008 DOI 10.1007/s10950-012-9279-6 Annotation The Russian electrodynamic seismometer model S-5-S has been adapted for the measurement of rotational ground motion. The mechanical system of the original S-5-S seismometer consists of electrodynamic sensing and damping transducer coils mounted on an asymmetrical double-arm pendulum. This pendulum is suspended on a footing using two pairs of crossed flat springs, which operate as the axis of rotation. The pendulum is stabilised by an additional spring. The S-5-S can be used either as a vertical or as a horizontal sensor. The adaptation of the S-5-S seismometer described below involves removal of the additional spring and installation of an additional mass on the damping arm. Strain gauge angle sensors are installed on one pair of the crossed flat springs. The main dynamic parameters of the rotational seismometer created in this way, i.e. the natural period and damping, are controlled electronically by feedback currents proportional to the angular displacement and angular velocity, both fed to the damping transducer coil. Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2013 Electronic address http://link.springer.com/article/10.1007%2Fs10950-012-9279-6
Number of the records: 1