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Proceedings Paper

Identification near-field seismic rotational events by fibre-optic rotational seismometer
Author(s): Leszek R. Jaroszewicz; Zbigniew Krajewski
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Paper Abstract

The paper presents new results about identification near-field seismic rotational events by a fibre-optic rotational seismometer. The Sagnac interferometer with 2&sgr; sensitivity equal to 4.27 10-8 rads-1 has been used as rotational seismometer, which can detect rotational events in a direct way. The theoretic investigation of obtained results show that such events can be treatment as the seismic rotational waves. The paper presents the experimental results obtained simultaneously by a fibre-optic and a standard rotational seismometers installed in the Ojcow seismic observatory. The main advantage of such an approach is a possibility to recognize the velocity of seismic rotational waves, which is different from the velocities of other seismic waves.

Paper Details

Date Published: 2 July 2007
PDF: 4 pages
Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66192D (2 July 2007); doi: 10.1117/12.738564
Show Author Affiliations
Leszek R. Jaroszewicz, Military Univ. of Technology (Poland)
Zbigniew Krajewski, Military Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 6619:
Third European Workshop on Optical Fibre Sensors

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