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      The Fiber-Optic Rotational Seismograph—Laboratory Tests and Field Application

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          Abstract

          The paper presents construction and laboratory tests, as well as the first field application of a new fiber-optic rotational seismograph. The system is based on a fiber-optic gyroscope (FOG), with determined Angle Random Walk of the order of 10 −8 rad/Sqrt(s) and a few rad/s maximum detectable amplitude of rotation in the frequency range from direct current (DC) to 328.12 Hz. It has been designed for the rotational seismology area of interest. This work also presents exemplary relevant measurements, which were conducted using a set of two devices installed in the geophysical observatory in Książ, Poland.

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          Introduction to the Special Issue on Rotational Seismology and Engineering Applications

          M. Çelebi, M. I. Todorovska, W. H. K. Lee … (2009)
          Article 0 comments Cited 28 times – based on 0 reviews     Review now
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            Ring Laser Measurements of Ground Rotations for Seismology

            F. Vernon, J. N. Hautmann, A. Velikoseltsev … (2009)
            Article 0 comments Cited 19 times – based on 0 reviews     Review now
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              Review of the Usefulness of Various Rotational Seismometers with Laboratory Results of Fibre-Optic Ones Tested for Engineering Applications

              Leszek R. Jaroszewicz, Anna Kurzych, Zbigniew Krajewski … (2016)
              Starting with descriptions of rotational seismology, areas of interest and historical field measurements, the fundamental requirements for rotational seismometers for seismological and engineering application are formulated. On the above basis, a review of all existing rotational seismometers is presented with a description of the principles of their operation as well as possibilities to fulfill formulated requirements. This review includes mechanical, acoustical, electrochemical and optical devices and shows that the last of these types are the most promising. It is shown that optical rotational seismometer based on the ring-laser gyroscope concept is the best for seismological applications, whereas systems based on fiber-optic gyroscopes demonstrate parameters which are also required for engineering applications. Laboratory results of the Fibre-Optic System for Rotational Events & Phenomena Monitoring using a small 1-D shaking table modified to generate rotational excitations are presented. The harmonic and time-history tests demonstrate its usefulness for recording rotational motions with rates up to 0.25 rad/s.
              Article 0 comments Cited 15 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): Sensors (Basel)
                Journal ID (iso-abbrev): Sensors (Basel)
                Journal ID (publisher-id): sensors
                Title: Sensors (Basel, Switzerland)
                Publisher: MDPI
                ISSN (Electronic): 1424-8220
                Publication date (Electronic): 15 June 2019
                Publication date Collection: June 2019
                Volume: 19
                Issue: 12
                Electronic Location Identifier: 2699
                Affiliations
                [1 ]Faculty of Advanced Technologies and Chemistry, Military University of Technology, Warsaw 00-908, Poland; anna.kurzych@ 123456wat.edu.pl (A.K.); zbigniew.krajewski@ 123456wat.edu.pl (Z.K.); michal.dudek@ 123456wat.edu.pl (M.D.)
                [2 ]Elproma Electronics Ltd., Lomianki 05-092, Poland; j.kowalski@ 123456elpromaelectronics.com
                [3 ]Institute of Geophysics, Polish Academy of Science, Warsaw 01-452, Poland; kt@ 123456igf.edu.pl
                Author notes
                [* ]Correspondence: jarosz@ 123456wat.edu.pl ; Tel.: +48-261-839-014
                Author information
                https://orcid.org/0000-0001-8838-5846
                https://orcid.org/0000-0001-7547-0638
                Article
                Publisher ID: sensors-19-02699
                DOI: 10.3390/s19122699
                PMC ID: 6631292
                PubMed ID: 31208041
                SO-VID: a4ec1fc2-4216-4a45-a3a7-0bc59648dfbe
                Copyright © © 2019 by the authors.
                License:

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                Date received : 03 May 2019
                Date accepted : 11 June 2019
                Categories
                Subject: Article

                ScienceOpen disciplines: Biomedical engineering
                Keywords: rotational seismograph,fiber-optic sensor,rotational events,seismology,rotational seismology
                Data availability:
                ScienceOpen disciplines: Biomedical engineering
                Keywords: rotational seismograph, fiber-optic sensor, rotational events, seismology, rotational seismology

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