METADATA IN ENGLISH

About the journal

SEISMICHESKIE PRIBORY, ISSN: 0131-6230, eISSN: 2312-6965, DOI: 10.21455/si,

http://elibrary.ru/title_about.asp?id=25597

English Translation: Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online),

https://link.springer.com/journal/11990

Digital seismic logger “Ermak-5”. Experience

of development and implementation

P.G. Butyrin1, P.G. Verkholantsev2, A.V. Verkholantsev1, D.Y. Shulakov1

1 Mining Institute of the Ural Branch of the Russian Academy of Sciences, Perm, Russia

2 Federal Research Center Geophysical Survey of the Russian Academy of Sciences, Obninsk, Russia

Corresponding author: P.G. Butyrin, e-mail: pbg2000@mail.ru

Abstract. The necessary conditions for development and successful implementation of digital seismic logger

“Ermak-5” is considered. Short review of similar technical solution for modern seismological monitoring systems is given and qualitative comparative analysis is fulfilled. Technical and operational demands for development of logger are substantiated. The results of Laboratory and field experiments were carried out for confirmation of key technical characteristics of the device. Wherein the special attention is paid to conformity of amplitude-frequency characteristics of the logger to reference analogues. Different types of seismometers used for comparative testing. Description of hardware-software implementation of the flexible power management system of the logger is given. It helps decrease power consumption to near 300 mW when the registration is made through six channels. The logger can be used for longtime registration with autonomous sources of power. The core of time in the logger is developed by using special algorithms, which allow technological maximum for inner clock synchronization accuracy by using the GPS/GLONNAS systems (hundreds of nanoseconds) and NTP-services (dozens of microseconds). Details of time synchronization algorithms are examined and description of experimental laboratory and filed setup for time synchronization accuracy is given. The LCD-screen of the logger is very important for effective exploitation. Information about time, some logger’s parameters and waveform in different modes are appeared at the display. The experience of implementation at the different seismic monitoring objects is generalized, and it accounted for the revision process of the logger project.

Keywords: seismic monitoring, seismic logger, data acquisition system, time synchronization, autonomous seismic station, broadband geophone, analog to digital converter, GPS receiver.

About the authors

BUTYRIN Pavel Genrikhovich – PhD, researcher, Mining Institute of the Ural Branch of the Russian Academy of Sciences. 614007, Russia, Perm, Sibirskaya, 78-a. Phone: +7(342) 216-31-14.

E-mail: pbg2000@mail.ru

VERKHOLANTSEV Philipp Gennadyevich – junior researcher, Federal Research Center Geophysical Survey of the Russian Academy of Sciences. 249035, Russia, Obninsk of Kaluzhskaya region, Lenina av. 189. Phone: +7(484) 393-14-05. E-mail: sombra@mail.ru

VERKHOLANTSEV Aleksandr Viktorovich – lead engineer, Mining Institute of the Ural Branch of the Russian Academy of Sciences. 614007, Russia, Perm, Sibirskaya, 78-a. Phone: +7(342) 216-31-14. E‑mail: vercholancev@gmail.com

SHULAKOV Denis Yurievich – PhD, head of laboratory, Mining Institute of the Ural Branch of the Russian Academy of Sciences. 614007, Russia, Perm, Sibirskaya, 78-a. Phone: +7(342) 216-09-84. E‑mail: shulakov@mi-perm.ru

Cite this article as: Butyrin P.G., Verkholantsev P.G., Verkholantsev A.V., Shulakov D.Y. Digital seismic logger “Ermak-5”. Experience of development and implementation. Seismicheskie Pribory, 2018, Vol. 54, no 2, pp. 5-23. (in Russ.). DOI: 10.21455/si2018.2-1

English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990), 2019, Volume 55, Issue 2.