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Strong-motion fluid rotation seismograph
- 1.0330222 - GFÚ 2010 RIV US eng J - Journal Article
Jedlička, Petr - Buben, Jiří - Kozák, Jan
Strong-motion fluid rotation seismograph.
Bulletin of the Seismological Society of America. Roč. 99, 2B (2009), s. 1443-1448. ISSN 0037-1106. E-ISSN 1943-3573
Institutional research plan: CEZ:AV0Z30120515; CEZ:AV0Z30130516
Keywords : rotation seismograph * seismic waves * fluid seismometer
Subject RIV: DC - Siesmology, Volcanology, Earth Structure
Impact factor: 1.860, year: 2009
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.
Permanent Link: http://hdl.handle.net/11104/0176064
Number of the records: 1