Abstract
Construction, laboratory tests as well as the first field application of a new fibre-optic rotational seismograph is presented. The system based on fibre-optic gyroscope (FOG) with measured Angle Random Walk on range 10−8 rad/Sqrt(s) and a few rad/s maximum detectable amplitude of rotation in frequency range from DC to 328.12 Hz designed it for rotational seismology area of interest. This work presents also exemplary relevant measurements which were conducted using two seismographs in the geophysical observatory in Książ region, Poland.
Highlights
Paper deals with innovative sensor suitable for rotational seismology which falls within rotational ground movements from earthquakes, explosions, and ambient vibrations [1]
From above reasons in this paper we describe construction, laboratory test as well as results of field application of FOSREM® - the innovative Fibre-Optic Rotational Seismograph
The FOSREM® presented in this paper have been constructed to meet completely technical requirements for rotational seismology
Summary
Paper deals with innovative sensor suitable for rotational seismology which falls within rotational ground movements from earthquakes, explosions, and ambient vibrations [1]. From above reasons in this paper we describe construction, laboratory test as well as results of field application of FOSREM® - the innovative Fibre-Optic Rotational Seismograph.
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