On the measurement of the magnetic induction vector with the use of a three-component magnetometer placed on a mobile carrier
https://doi.org/10.18303/2619-1563-2021-4-47
Abstract
The article describes the use of a vector ferromagnetic magnetometer placed on an unmanned aerial vehicle (UAV). It is shown that solving inverse problems of magnetic prospecting for a vector aeromagnetic survey makes it possible to identify areas with different magnetization. We present a simple, based on standard libraries, software product for processing primary data of three-component fluxgate magnetometers, which allows correctly selecting the magnetic induction vector components when performing magnetic UAV surveys. To build maps, a method for graphical display of a vector field is proposed. On the example of a man-made object, we demonstrate that vector fields measured at different heights provide significantly more information than conventional electromagnetic induction measurements.
About the Authors
I. N. ZligostevRussian Federation
Koptyug Ave., 3, Novosibirsk, 630090
M. I. Epov
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090
A. V. Savluk
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090
References
1. Blakely R.J. Potential theory in gravity and magnetic applications, Stanford-Cambridge program. – Cambridge University Press, Cambridge, 1996.
2. Instruction on magnetic prospecting (ground magnetic survey, aeromagnetic survey, hydromagnetic survey) // USSR Ministry of Geology [in Russian]. – Nedra, Leningrad, 1981. – 263 p.
3. Kosykh V.P., Gromilin, G.I., Firsov A.P., Savluk A.V. Errors of estimating the parameters of local magnetic anomalies based on magnetic survey performed at different altitudes by an unmanned aerial vehicle // Optoelectronics, Instrumentation and Data Processing. – 2018. – Vol. 54 (4). – P. 328–333, doi: 10.3103/S8756699018040027.
4. Le Maire P., Bertrand L., Munschy M., Diraison M., Géraud Y. Aerial magnetic mapping with an unmanned aerial vehicle and a fluxgate magnetometer: a new method for rapid mapping and upscaling from the field to regional scale // Geophysical Prospecting. – 2020. – Vol. 68 (7). – P. 2307–2319, doi: 10.1111/1365-2478.12991.
5. Savluk A.V., Zlygostev I.N. “VECTOR-T” program for selecting the vertical and horizontal components of the Earth’s magnetic field induction vector: Certificate of the computer program state registration No. 2019610472, application No. 2018665035 from 24.12.2018, registered 10.01.2019 [in Russian].
6. Schmidt P.W., Clark D.A. The magnetic gradient tensor: Its properties and uses in source characterization // The Leading Edge. – 2006. – Vol. 25 (1). – P. 75–78, doi: 10.1190/1.2164759.
7. Tuck L.E., Samson C., Laliberté J., Cunningham M. Magnetic interference mapping of four types of unmanned aircraft systems intended for aeromagnetic surveying // Geoscientific Instrumentation, Methods and Data Systems. – 2021. – Vol. 10 (1). – P. 101–112, doi: 10.5194/gi-10-101-2021.
8. Zlygostev I.N., Epov M.I., Savluk A.V., Glinskikh V.N. Multichannel information-measuring system on an unmanned aircraft for measuring the total induction vector of the Earth’s magnetic field // Russian Journal of Geophysical Technologies. – 2020. – Vol. 4. – P. 50–57, doi: 10.18303/2619-1563-2020-4-50.
Review
For citations:
Zligostev I.N., Epov M.I., Savluk A.V. On the measurement of the magnetic induction vector with the use of a three-component magnetometer placed on a mobile carrier. Russian Journal of Geophysical Technologies. 2021;(4):47-56. (In Russ.) https://doi.org/10.18303/2619-1563-2021-4-47