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Proceedings Paper

Application of the fibre-optic interferometer as a rotational seismograph type AFORS
Author(s): Anna Kurzych; Leszek R. Jaroszewicz; Zbigniew Krajewski; Krzysztof P. Teisseyre; Jerzy K. Kowalski
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Paper Abstract

In this article we show a fibre-optic device based on the Sagnac effect designed for measuring rotational motions which appear during seismic events. The experimental investigations of presented Autonomous Fiber-Optical Rotational Seismographs indicate that such devices keep the accuracy no less than 5.1·10-9 to 5.5·10-8 rad/s in the frequency band from 0.83 Hz to 106.15 Hz. Furthermore, their operations are controlled fully remotely via Internet. We present the comparison of results obtained by such system in the field test with a mechanical rotational seismometer which is mounted simultaneously in the seismological observatory in Książ, Poland.

Paper Details

Date Published: 5 December 2014
PDF: 4 pages
Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 944114 (5 December 2014); doi: 10.1117/12.2076131
Show Author Affiliations
Anna Kurzych, Military Univ. of Technology (Poland)
Leszek R. Jaroszewicz, Military Univ. of Technology (Poland)
Zbigniew Krajewski, Military Univ. of Technology (Poland)
Krzysztof P. Teisseyre, Institute of Geophysics (Poland)
Jerzy K. Kowalski, m-Soft Ltd. (Poland)

Published in SPIE Proceedings Vol. 9441:
19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Agnieszka Popiolek-Masajada; Waclaw Urbanczyk, Editor(s)

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