An overview of sensing platform-technological aspects for vector magnetic measurement: A case study of the application in different scenarios

Huan, Liu; Dong, Haobin; Ge, Jianhua; Liu, Zheng

doi:10.1016/j.measurement.2021.110352

Cited by 10 publications

(2 citation statements)

References 125 publications

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“…The successful industrial use mostly requires low costs of acquisition and operation of the instruments. Besides this, the suitability for the particular measurement task has to be considered such as limitations set by space, weight, and power supply, scanning speed, ambient noise conditions (e.g., of autonomous vehicles), and availability of liquid coolants (for superconducting sensors) which are often convolved with the platform to be used (e.g., Liu et al 2022). The success of an operation is highly dependent on the performance-specific parameters of the magnetometers, such as intrinsic sensor noise, cross-talk, linearity, slew rate, dynamic range, and bandwidth.…”

Section: Generalsmentioning

confidence: 99%

SQUIDs for magnetic and electromagnetic methods in mineral exploration

et al. 2022

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Research on quantum sensors for the detection of magnetic fields (quantum magnetometers) is one of the fast-moving areas of Quantum Technologies. Since there exist expectations about their use in geophysics, this work will provide a brief overview on the various developing quantum technologies and their individual state of the art for implementing quantum magnetometers. As one example, the developments on superconducting quantum interference devices, so-called SQUIDs as a specific implementation of a quantum magnetometer, are presented. In the course of this, SQUID instrument implementations and associated demonstrations and case studies will be presented. An airborne vector magnetometer with ultra-low noise ($$<10 \mathrm{fT}/\sqrt{\mathrm{Hz}}$$ < 10 fT / Hz ) and high dynamic range of $$>32 \mathrm{bit}$$ > 32 bit will be introduced which has the prospect to be applied for the magnetic method in parallel with electromagnetic methods such as passive audio-frequency magnetics or semi-airborne methods using active transmitters such as elongated grounded dipole sources. The according signals are separated in the frequency domain. A second implementation is an airborne full tensor gradiometer instrument will be discussed which has shown already a number of successful case studies and which turned into commercial operation in the past years. Besides the airborne instrument, a very successful implementation of quantum magnetometers is the SQUID-based receiver for the ground-based transient electromagnetic method. Today it is a mature technology which has been in commercial use for more than a decade and has led to a number of discoveries of conductive ore bodies. One case study will be presented which demonstrates the performance of this instrument. Finally, future prospects of using quantum magnetometers, including SQUIDs and new optically pumped magnetometers, in geophysical exploration will be discussed. Particular applications for both sensor types will be introduced.

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Section: Generalsmentioning

confidence: 99%

SQUIDs for magnetic and electromagnetic methods in mineral exploration

et al. 2022

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“…With the development of modern physics, many institutions have developed magnetometers based on proton precession, fluxgate, optical pump, and superconductivity [4][5][6][7], and the accuracy of magnetic measurement has continuously improved. According to physical quantities to measure, magnetometers can be divided into three categories: total field magnetometers for the magnitude of the magnetic field, vector magnetometers for three components of the magnetic field [8,9], and tensor magnetometers for magnetic gradient tensor [10,11]. Among them, the magnetic gradient tensor provides rich information and suppresses time-domain interference of the geomagnetic field.…”

Section: Introductionmentioning

confidence: 99%

A Robust Tracking Method for Multiple Moving Targets Based on Equivalent Magnetic Force

Wang

Sui

2022

Micromachines

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A ferromagnetic vehicle, such as a submarine, magnetized by the Earth’s magnetic field produces a magnetic anomaly field, and the tracking of moving targets can be realized through real-time analysis of magnetic data. At present, there are few tracking methods based on magnetic field vectors and their gradient tensor. In this paper, the magnetic field vector and its gradient tensor are used to calculate equivalent magnetic force. It shows the direction of the vector between the detector and the tracking targets for controlling the direction of motion of the detector and achieving the purpose of tracking. Compared with existing positioning methods, the proposed method is relatively less affected by instrument resolution and noise and maintains robustness when the velocity vectors of multiple magnetic targets change randomly.

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