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1.
I. P. Bashilov A. A. Vereshchagin S. G. Volosov V. A. Merkulov Yu. V. Ryazantsev V. I. Sachkov S. Yu. Chervinchuk 《Journal of Volcanology and Seismology》2018,12(2):150-154
This paper reports the development of a new-generation short-period borehole electrodynamic seismometer designed for research, with special emphasis on seismology and volcanology (Sobisevich et al., 2008) and for important applications (Bashilov, 2001), e.g., developing special monitoring and security systems, as well as the search for and monitoring of hydrocarbon exploration. 相似文献
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I. P. Bashilov S. G. Volosov S. A. Korolyov G. L. Kosarev O. Yu. Riznichenko I. A. Sanina 《Seismic Instruments》2014,50(3):177-191
The SSD-3 three-channel seismic recorder and the ADSS-3 three-component broadband standalone digital seismic station based on the SSD-3 together with SM-3E seismic sensors were developed. The main advantage of this equipment in comparison with foreign and domestic analogs is simplicity and convenience while maintaining high technical characteristics. The structure and operation of the seismic sensor and seismic recorder are considered, and their main technical characteristics are given. Laboratory, bench, and comparative tests of the seismic recorder and station demonstrated their working capacity and compliance with the development goal. Based on the test results, the ADSS-3 seismic station was commissioned as a three-component broadband observation point of the Mikhnevo small-aperture seismic array. The data obtained using the ADSS-3 made is possible to study the structure of the crust and upper mantle of this region using the receiver function method. 相似文献
3.
I. O. Kitov S. G. Volosov S. B. Kishkina N. L. Konstantinovskaya K. S. Nepeina M. A. Nesterkina I. A. Sanina 《Seismic Instruments》2016,52(1):19-31
A small-aperture seismic array consisting of seven three-component seismometers carried out continuous measurements of regional seismicity in a selected area of the Nizhni Novgorod nuclear power plant during four months of 2013. Automatic signal detection using beamforming was applied separately for each motion component. Two horizontal components were transformed into radial and transverse components for the given values of the velocity and azimuth of the plane wave front. We have investigated the dependence of the coherence of microseismic noise on frequency, azimuth, and slowness, as well as determining the level of cross-correlation between signals on separate channels in order to estimate expected improvement in the signal-to-noise ratio, which is crucial for signal detection. Most signals detected by the seismic array from regional sources are associated with quarry blasts. Using repetitive explosions at seven quarries, we have quantitatively estimated and compared the increase in detection efficiency of regional seismic phases using a three-component small aperture seismic array and a subarray of vertical sensors. Horizontal sensors showed a higher efficiency in the detection of transverse waves, while the subarray of vertical sensors missed S-waves from certain events. For one of the nearby quarries, the vertical subarray missed up to 25% of events (5 of 20). The results of the investigation point to the need for the use of three-component seismic arrays for the study of regional seismicity. 相似文献
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I. A. Sanina S. G. Volosov O. A. Chernykh V. E. Asming A. M. Soldatenkov O. Yu. Riznichenko 《Seismic Instruments》2008,44(1):1-11
The design of a 2D small aperture seismic array (SASA) installed in the central part of the East European Platform (in the area of the village of Mikhnevo, Moscow Oblast’) is discussed. Brief information is provided on the geologic structure of the upper section. The SASA configuration is described along with parameters of the seismological instrumentation used, and the digital seismic data acquisition system. Results are described from a study of the spectral content and the spatial correlation properties of short period microseismic noise and seismic signal coherence. Examples are provided of records of natural and manmade seismic events occurring at different epicentral distances. Experimental data are analyzed to show that this small aperture seismic array can be an effective tool to study low magnitude seismicity in the East European Platform and for solving several other problems arising in contemporary experimental seismology. 相似文献
6.
Sanina I. A. Riznichenko O. Yu. Kushnir A. F. Varypaev A. V. Sergeev S. I. Volosov S. G. 《Izvestiya Physics of the Solid Earth》2020,56(2):260-278
Izvestiya, Physics of the Solid Earth - Abstract—In this paper, we consider the problem of recording and processing the microseismic data with their subsequent interpretation and making the... 相似文献
7.
We have developed an autonomous portable digital seismometer for measurements in the field, in engineering constructions,
and in hard-to-reach places. The seismometer is a monoblock including an SM-6 seismic receiver and digital seismic recorder.
The SM-6 seismic receiver is a highly effective device for field work on investigating a microseismic wave field and for use
in systems of seismological monitoring. Field tests of these seismic receivers in comparison with well-known SM-3 devices
were carried out. The basic part of the seismic recorder is an MSC1213Y5 system-on-chip representing a precision 24-bit ADC
coupled with an 8051 compatible microcontroller. Autonomy of the seismometer up to 30 days is provided with data recording
into a flash memory chip of 1 Gbyte capacity. Time synchronization of seismic data is provided with the PPS second mark received
from a GPS receiver. A preproduction model of the portable digital seismometer was manufactured and tested. As a result of
tests, the working capacity of this preproduction model has been confirmed and its basic technical characteristics have been
determined. 相似文献
8.
I. P. Bashilov S. G. Volosov S. A. Korolyov V. A. Merkulov V. M. Ovtchinnikov O. V. Ovtchinnikova 《Seismic Instruments》2016,52(3):253-265
A family of seismometers has been developed with capacitive transducers that convert the relative displacement between the inertial mass and the base of the device into an electric signal. The seismometers have high sensitivity and a unified electronic circuit, and they can be rather easily manufactured, installed, and calibrated. Mass production of these instruments looks promising. To assess the possibility of using these seismometers as substitutes for imported counterparts, a comparative analysis was carried out to study the performance of an SM-3E broadband sensor with a capacitive transducer and imported STS-2 and CMG-6T seismometers. Seismic recordings of these three instruments mounted on the same pedestal were statically analyzed in the time and frequency domains. 相似文献
9.
N.?V.?KabychenkoEmail author A.?N.?Besedina S.?G.?Volosov S.?A.?Korolev G.?G.?Kocharyan 《Seismic Instruments》2018,54(1):28-42
This paper reviews the methods of correcting the frequency response of short-period seismometers and geophones, i.e., the multiplication of the transfer sensor functions by the transfer function of the secondorder correction filter and the provision of a considerable attenuation in the oscillating system (h = 5–10) followed by correcting the frequency response with the first-order filter. The correction device circuit developed by the authors for expanding the frequency range of the GS-20DX geophone has been described. The proposed method has been proved to be effective according to the laboratory tests of the geophone with the frequency response correction according to this circuit. 相似文献
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