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

fYear

2007

fDate

1-3 May 2007

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE

Conference_Location

Warsaw

ISSN

1091-5281

Print_ISBN

1-4244-0588-2

Type

conf

DOI

10.1109/IMTC.2007.379438

Filename

4258205