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

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 rad/Sqrt(s) and a few rad/s maximum detectable amplitud...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2019-06, Vol.19 (12), p.2699
Main Authors: Jaroszewicz, Leszek R, Kurzych, Anna, Krajewski, Zbigniew, Dudek, Michał, Kowalski, Jerzy K, Teisseyre, Krzysztof P
Format: Article
Language:English
Subjects:
Data transmission
Direct current
Earthquakes
Fiber optics
fiber-optic sensor
Frequency ranges
Geophysics
Gravitational waves
Laboratories
Observatories
Optical fibers
Random walk
rotational events
rotational seismograph
rotational seismology
Seismic engineering
Seismographs
Seismology
Sensors
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Summary: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 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.
ISSN:1424-8220
1424-8220
DOI:10.3390/s19122699