Title :
Fibre-Optic Rotational Seismometer as Device for Detection the Seismic Rotational Events
Author :
Jaroszewicz, Leszek R. ; Krajewski, Zbigniew
Author_Institution :
Mil. Univ. of Technol., Warsaw
Abstract :
The fibre-optic Sagnac interferometer application for a direct measurement of ground rotation component is presented in this paper. It is a new rotational seismometer which parameters are compared with classical mechanical one. On this base the experimental data obtained during simultaneously application above two kinds of sensors are also presented. It is directly shown that rotational components, so-called rotational seismic waves, exist in separation to classical seismic waves generated during earthquakes.
Keywords :
Sagnac interferometers; earthquakes; fibre optic sensors; seismic waves; seismometers; Sagnac interferometer; earthquakes; fibre-optic interferometer; fibre-optic rotational seismometer; ground rotation component; rotational seismic waves; seismic rotational event detection; Attenuation; Earthquakes; Event detection; Instrumentation and measurement; Mechanical sensors; Optical fiber devices; Optical fiber sensors; Physics; Sagnac interferometers; Seismic waves; earthquakes investigation; fibre-optic device; interferometric sensor;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE
Conference_Location :
Warsaw
Print_ISBN :
1-4244-0588-2
DOI :
10.1109/IMTC.2007.379438
