Submitted:
03 May 2019
Posted:
06 May 2019
You are already at the latest version
Abstract
The paper presents construction, laboratory tests as well as the first field application of a new fiber-optic rotational seismograph. The system based on 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 DC to 328.12 Hz. It has been designed for 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.
Keywords:
rotational seismograph
; fiber optic sensor
; rotational events
; seismology
; rotational seismology
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