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Strong-motion fluid rotation seismograph
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SYSNO ASEP 0330222 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Strong-motion fluid rotation seismograph Author(s) Jedlička, Petr (GFU-E) ORCID, RID
Buben, Jiří (GLU-S)
Kozák, Jan (GFU-E) RIDSource Title Bulletin of the Seismological Society of America. - : Seismological Society of America - ISSN 0037-1106
Roč. 99, 2B (2009), s. 1443-1448Number of pages 6 s. Language eng - English Country US - United States Keywords rotation seismograph ; seismic waves ; fluid seismometer Subject RIV DC - Siesmology, Volcanology, Earth Structure CEZ AV0Z30120515 - GFU-E (2005-2011) AV0Z30130516 - GLU-S (2005-2011) UT WOS 000266181600046 DOI 10.1785/0120080099 Annotation A new type of rotation seismometer is proposed using a fluid ring-shaped sensor, where the inertial mass is a liquid moving in the tube attached to a pier to measure rotational movements. Rotational components of seismic waves, which are strong enough to twist heavy objects on the Earth’s surface in the epicenter zone of an earthquake, decrease rapidly with distance. These weak rotational components may easily vanish in standard seismograms displaying translational displacements. In the proposed fluid, seismometer translational displacements are mutually compensated so that weak rotational vibration components become easily identifiable and recognizable. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2010
Number of the records: 1