Low-noise, low-power-consumption seafloor vector magnetometer

Xiaochen LI; Xianhu LUO; Ming DENG; Ning QIU; Zhen SUN; Kai CHEN

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Low-noise, low-power-consumption seafloor vector magnetometer

Marine Scientific Instruments | Updated：2024-10-12

- Low-noise, low-power-consumption seafloor vector magnetometer
- Low-noise, low-power-consumption seafloor vector magnetometer
- 海洋湖沼学报(英文) 2023年41卷第2期页码：804-815
- Affiliations：
  
  1.China University of Geosciences, Beijing 100083, China
  2.Guangzhou Marine Geological Survey, China Geological Survey, Ministry of Natural Resources, Guangzhou 511458, Chinaa
  3.SCSIO Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
  4.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
- Author bio：
  
  ck@cugb.edu.cn
- Funds：
  
  the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)(2019BT02H594);the National Natural Science Foundation of China(42174081;41804071;U2244221);the Guangdong Basic and Applied Basic Research Foundation(2021A1515011526)
- DOI：
  中图分类号：
- 收稿：2022-05-08，
  
  录用：2022-06-02，
  
  网络首发：2022-07-15，
  
  纸质出版：2023-03-01
- Accepted：
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Low-noise, low-power-consumption seafloor vector magnetometer[J]. 海洋湖沼学报(英文), 2023,41(2):804-815.

LI Xiaochen,LUO Xianhu,DENG Ming,et al.Low-noise, low-power-consumption seafloor vector magnetometer[J].Journal of Oceanology and Limnology,2023,41(02):804-815.
Low-noise, low-power-consumption seafloor vector magnetometer[J]. 海洋湖沼学报(英文), 2023,41(2):804-815. DOI：

LI Xiaochen,LUO Xianhu,DENG Ming,et al.Low-noise, low-power-consumption seafloor vector magnetometer[J].Journal of Oceanology and Limnology,2023,41(02):804-815. DOI：

摘要

Abstract

The seafloor vector magnetometer is an effective tool for marine geomagnetic surveys and seafloor magnetotelluric (MT) detection. However

the noise

power consumption

cost

and volume characteristics of existing seafloor vector magnetometers are insufficient for practical use. Therefore

a low-noise

low-power-consumption seafloor vector magnetometer that can be used for data acquisition of deep-ocean geomagnetic vector components is developed and presented. A seafloor vector magnetometer mainly consists of a fluxgate sensor

data acquisition module

acoustic release module

glass sphere

frame

burn-wire release

and anchor. A new low-noise data acquisition module and a fluxgate sensor greatly reduce power consumption. Furthermore

compact size is achieved by integrating an acoustic telemetry module and replacing the acoustic release with an external burn-wire release. The new design and magnetometer characteristics reduce the volume of the instrument and the cost of hardware considerably

thereby improving the integrity and deployment efficiency of the equipment. Theoretically

it can operate for 90 days underwater at a maximum depth of 6 000 m. The seafloor vector magnetometer was tested in the South China Sea and the Philippine Sea and obtained high-quality geomagnetic data. The deep-water environment facilitates magnetic field data measurements

and the magnetometer has an approximate noise level of 10 pT/rt (Hz)@1 Hz

a peak-to-peak value error of 0.2 nT

and approximate power consumption of 200 mW. The fluxgate sensor can measure the magnetic field in the lower frequency band and realize geomagnetic field measurements over prolonged periods.

关键词

Keywords

references

Chen K , Deng M , Luo X H et al . 2017 . A micro ocean-bottom E-field receiver . Geophysics , 82 ( 5 ): E233 - E241 , https://doi.org/10.1190/geo2016-0242.1 https://doi.org/10.1190/geo2016-0242.1 .

Chen K , Wei W B , Deng M et al . 2015a . A new marine controlled-source electromagnetic receiver with an acoustic telemetry modem and arm-folding mechanism . Geophysical Prospecting , 63 ( 6 ): 1420 - 1429 , https://doi.org/10.1111/1365-2478.12297 https://doi.org/10.1111/1365-2478.12297 .

Chen K , Wei W B , Deng M et al . 2015b . A seafloor electromagnetic receiver for marine magnetotellurics and marine controlled-source electromagnetic sounding . Applied Geophysical , 12 : 317 - 326 , https://doi.org/10.1007/s11770-015-0494-0 https://doi.org/10.1007/s11770-015-0494-0 .

Chen Y , Yang J C , Dada O A et al . 2020 . Magnetic properties indicate the sources of hadal sediments in the Yap Trench, northwest Pacific Ocean . Journal of Oceanology and Limnology , 38 ( 3 ): 665 - 678 , https://doi.org/10.1007/s00343-019-8370-z https://doi.org/10.1007/s00343-019-8370-z .

Constable S . 2013 . Review paper: instrumentation for marine magnetotelluric and controlled source electromagnetic sounding . Geophysics Prospecting , 61 ( S1 ): 505 - 532 . https://do 10.1111/j.1365-2478.2012.01117.x http://dx.doi.org/10.1111/j.1365-2478.2012.01117.x

Constable S C , Orange A S , Hoversten G M et al . 1998 . Marine magnetotellurics for petroleum exploration part I: a sea-floor equipment system . Geophysics , 63 ( 3 ): 816 - 825 , https://doi.org/10.1190/1.1444393 https://doi.org/10.1190/1.1444393 .

Constable S C , Srnka L J . 2007 . An introduction to marine controlled-source electromagnetic methods for hydrocarbon exploration . Geophysics , 7 ( 2 ): WA3 - WA12 , https://doi.org/10.1190/1.2432483 https://doi.org/10.1190/1.2432483 .

Dong Z , Zhang J , Yang G Y et al . 2021 . Micro-ocean-bottom electromagnetic receiver for controlled-source electromagnetic and magnetotelluric data acquisition . Review of Scientific Instruments , 92 ( 4 ): 044705 , https://doi.org/10.1063/5.0044412 https://doi.org/10.1063/5.0044412 .

Jiang X D , Yu Z H . 1998 . Study on the fractal character of magnetic anomaly fields and the delineation of tectonic elements in the South China Sea . Chinese Journal of Oceanology and Limnology , 16 ( 1 ): 28 - 35 , https://doi.org/10.1007/BF02848214 https://doi.org/10.1007/BF02848214 .

Johansen S E , Panzner M , Mittet R et al . 2019 . Deep electrical imaging of the ultraslow-spreading Mohns Ridge . Nature , 567 ( 7748 ): 379 - 383 , https://doi.org/10.1038/s41586-019-1010-0 https://doi.org/10.1038/s41586-019-1010-0 .

Kasaya T , Goto T N . 2009 . A small ocean bottom electromagnetometer and ocean bottom electrometer system with an arm-folding mechanism (Technical Report) . Exploration Geophysics , 40 ( 1 ): 41 - 48 , https://doi.org/10.1071/EG08118 https://doi.org/10.1071/EG08118 .

Key K , Constable S , Liu L J et al . 2013 . Electrical image of passive mantle upwelling beneath the northern East Pacific Rise . Nature , 495 ( 7742 ): 499 - 502 , https://doi.org/10.1038/nature11932 https://doi.org/10.1038/nature11932 .

Matsuno T , Baba K , Utada H . 2020 . Probing 1-D electrical anisotropy in the oceanic upper mantle from seafloor magnetotelluric array data . Geophysical Journal International , 222 ( 3 ): 1502 - 1525 , https://doi.org/10.1093/gji/ggaa221 https://doi.org/10.1093/gji/ggaa221 .

Naif S , Key K , Constable S et al . 2013 . Melt-rich channel observed at the lithosphere-asthenosphere boundary . Nature , 495 ( 7441 ): 356 - 359 , https://doi.org/10.1038/nature11939 https://doi.org/10.1038/nature11939 .

Oehler J F , Rouxel D , Lequentrec-Lalancette M F . 2018 . Comparison of global geomagnetic field models and evaluation using marine datasets in the north-eastern Atlantic Ocean and western Mediterranean Sea . Earth, Planets and Space , 70 : 99 , https://doi.org/10.1186/s40623-018-0872-y https://doi.org/10.1186/s40623-018-0872-y .

Ogawa K , Matsuno T , Ichihara H et al . 2018 . A new miniaturized magnetometer system for long-term distributed observation on the seafloor . Earth, Planets and Space , 70 : 111 , https://doi.org/10.1186/s40623-018-0877-6 https://doi.org/10.1186/s40623-018-0877-6 .

QuasarGeo . 2020 . QMax EM3, Quasar Geophysical Technologies .

Tada M , Baba K , Utada H . 2014 . Three-dimensional inversion of seafloor magnetotelluric data collected in the Philippine Sea and the western margin of the northwest Pacific Ocean . Geochemistry, Geophysics, Geosystems , 15 ( 7 ): 2895 - 2917 , https://doi.org/10.1002/2014GC005421 https://doi.org/10.1002/2014GC005421 .

Takumi U , Mitsuhata Y , Toshihiro U et al . 2014 . A new marine magnetotelluric measurement system in a shallow-water environment for hydrogeological study . Journal of Applied Geophysics , 100 : 23 - 31 . https://do 10.1016/j.jappgeo.2013.10.003 http://dx.doi.org/10.1016/j.jappgeo.2013.10.003

Topal U , Can H , Çelik O M et al . 2019 . Design of fluxgate sensors for different applications from geology to medicine . Journal of Superconductivity and Novel Magnetism , 32 ( 4 ): 839 - 844 , https://doi.org/10.1007/s10948-018-4781-x https://doi.org/10.1007/s10948-018-4781-x .

Weitemeyer K A , Constable S , Tréhu A M . 2011 . A marine electromagnetic survey to detect gas hydrate at Hydrate Ridge, Oregon . Geophysical Journal International , 187 ( 1 ): 45 - 62 , https://doi.org/10.1111/j.1365-246X.2011.05105.x https://doi.org/10.1111/j.1365-246X.2011.05105.x .

Wu M X , Ryall P J C . 1987 . An application of marine geomagnetic survey to shallow sea engineering geology . Chinese Journal of Oceanology and Limnology , 5 ( 1 ): 51 - 58 , https://doi.org/10.1007/BF02848522 https://doi.org/10.1007/BF02848522 .

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