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


A new design version
of vertical gravitational gradiometer


A.B. Manukin, I.I. Kalinnikov, O.S. Kazantseva, V.P. Matyunin


Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia

Corresponding author: O.S. Kazantseva, e-mail: ok800@ifz.ru


Abstract. The article considers a new version of the construction of a vertical gravitational gradiometer. The main idea is to use the height-separated test mass and float, rigidly connected to each other and placed in the liquid, and the weight of the system is balanced by the Archimedean force. Changing the gravitational gradient results in a small movement of the system, which is connected to the body by a soft spring. When measured by a sensor, this movement contains information about the gradient value. In despite of the external simplicity of the idea, its implementation is quite difficult due to the influence of temperature variations. We discuss four options for creating the device, which showed the fundamental possibility of implementing a measuring device with a resolution of hundredths – tenths of an etwesh.


Keywords: gravitational gradient, float, test mass, Archimedean force, coefficient of thermal expansion, compressibility coefficient


About the authors


MANUKIN Anatoly Borisovich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, ul. Bolshaya Gruzinskaya, 10, building 1. E-mail: amanukin@yandex.ru


KALINNIKOV Igor Ivanovich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, ul. Bolshaya Gruzinskaya, 10, building 1. E-mail: i-kalinn@yandex.ru


KAZANTSEVA Olga Sergeevna – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, ul. Bolshaya Gruzinskaya, 10, building 1. E-mail: ok800@ifz.ru


MATUYNIN Valeri Petrovich Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, ul. Bolshaya Gruzinskaya, 10, building 1. E-mail: matyunin@ran.gpi.ru


Cite this article as: Manukin A.B., Kalinnikov I.I., Kazantseva O.S., Matyunin V.P. A new design version of vertical gravitational gradiometer, Seismicheskie Pribory, 2020, vol. 56, no. 3, pp. 26–34. (in Russian). https://doi.org/10.21455/si2020.3-2


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