Motion noise compensation of the marine electrode sensor of the electric field

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Abstract

The possibility of compensation of the noise component of the electrode sensor caused by pulsations of the liquid velocity relative to the electromagnetic field sensor electrodes and the possibility of increasing the sensitivity of the receiving device several times is shown. The scheme of the device for reception and measurement of low-frequency electric field in the sea, in which the specified compensation is realized, is offered.

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About the authors

V. G. Maksimenko

Fryazino Branch Kotelnikov Institute of Radioengineering and Electronics of RAS

Author for correspondence.
Email: max54@ms.ire.rssi.ru
Russian Federation, Vvedenskii Squar., 1, Fryazino, Moscow Region, 141190

References

  1. Зимин Е.Ф., Кочанов Э.С. Измерение напряженности электрических и магнитных полей в проводящих средах. М.: Энергоатомиздат, 1985.
  2. Взаимодействие электромагнитных полей контролируемых источников СНЧ диапазона с ионосферой и земной корой: Матер. Всерос. (с международным участием) научно-практич. семинара. В 2 тт. Апатиты, 2014. Т. 1.
  3. Бернстайн С.Л., Барроуз М.Л., Эванс Дж. Э. и др. // ТИИЭР. 1974. Т. 62. № 3. С. 5.
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  7. Максименко В.Г. // Измерит. техника. 2019. № 1. С. 58.
  8. Максименко В.Г. // РЭ. 2023. Т. 68. № 12. С. 1159.
  9. Шлихтинг Г. Теория пограничного слоя. М.: Наука, 1974.

Supplementary files

Supplementary Files
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1. JATS XML
2. Fig. 1. Device for receiving and measuring low-frequency electric field in the sea: E1…E4 — electrodes, PO — dielectric platform-radome, U1 — amplifier, U2 — adjustable amplifier, BV — subtraction unit, BI — information processing unit. The arrow shows the direction of towing.

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3. Fig. 2. Diagram of a towed dielectric platform with electrodes (side view).

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4. Fig. 3. Diagram of a measuring cell with electrodes: 1, 2 — first and second electrodes, 3 — dielectric cylinder, 4 — cell body, 5 — injector, 6 — pipeline, 7 — flow collector, 8 — reference electrode.

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5. Fig. 4. Noise voltage spectra: 1 — between electrodes 1 and 8, 2 — between electrodes 2 and 8, 3 — spectrum of difference voltage.

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