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Improvements in the high-precision tiltmeter instrument systems located in the underground geophysical observatory
Schmidt Institute of Physics of the Earth, Russian Academy of Science
Journal: Seismic instruments
Tome: 58
Number: 1
Year: 2022
Pages: 29-52
UDK: 550.34
DOI: 10.21455/si2022.1-2
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Gravirov
A.V V.V., Sobisevich
I.A
A.L. Improvements in the high-precision tiltmeter instrument systems located in the underground geophysical observatory
// . 2022. Т. 58. № 1. С. 29-52. DOI: 10.21455/si2022.1-2
@article{Gravirov
A.VImprovements2022,
author = "Gravirov
A.V, V. V. and Sobisevich
I.A,
A. L.",
title = "Improvements in the high-precision tiltmeter instrument systems located in the underground geophysical observatory
",
journal = "Seismic instruments",
year = 2022,
volume = "58",
number = "1",
pages = "29-52",
doi = "10.21455/si2022.1-2",
language = "English"
}
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Keywords: tiltmeters, underground geophysical observatory, high-precision monitoring, time series, data processing, signal level jumps, Earth tides, ABD software package
Аnnotation: The results of both theoretical and experimental studies carried out in frames of the complex problem on im-proving national systems for high-precision instrumental systems observations on the basis of the IPE RAS’s Geophysical Observatory in Northern Caucasus are presented. The geophysical observatory is located in the vi-cinity of the Elbrus volcano in a deep underground tunnel of the Baksan Neutrino Observatory governed by the INR RAS. Along with the general information about the underground laboratory, the metrologically significant characteristics of the main instrument – the two-component tiltmeter – are being presented, as well as the sys-tem for data acquisition, processing and storage. Influence of natural and technogeneous disturbances upon the results of interpretation of both tidal harmonics and other long-period variations are estimated via the developed technique for minimization of the influence of a separate class of disturbances; also an express assessment of the amplitude of the observed tide is carried out.
