Magnetic Dipole Moment Estimation from Nearfield Measurements Using Stochastic Gradient Descent AI Model

Mentges, Andrew; Rawal, Bharat S.

doi:10.1109/com-it-con54601.2022.9850855

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…On the other hand, most current publications [2,6,10,12,14] tackling magnetic cleanliness are aimed at overcoming the technical problems that arise during the experimental determination of the magnetic moment of the spacecraft and its components. This is explained by the need to use both special magneto-measuring systems (Fig.…”

Section: Discussion Of Results Of Applying the Model Of Spherical Har...mentioning

confidence: 99%

“…In addition, the relatively small values of the magnetic moments of such spacecraft and the reduction in the dimensions of the measurement system negatively affect the reliability of the obtained results. Article [12] presents a method for estimating the magnetic dipole moment of a nanosatellite based on near-field magnetic induction measurements using methods developed for machine learning. With the help of complex neural network machine learning algorithms, it is possible to improve the probability of magnetic moment measurement results, but not to solve the problem completely.…”

Section: The Object Of This Study Is the Technology Of Ensuring Magne...mentioning

confidence: 99%

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Improving the technology for ensuring the magnetic cleanliness of small spacecraft

Getman

2023

EEJET

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The object of this study is the technology of ensuring magnetic cleanliness when applied to small spacecraft (SC) with overall dimensions of ~1 m in terms of minimizing the effect of magnetic interference on the on-board magnetometer. As part of solving the general problem of increasing the reliability of spacecraft, the task of improving the technology of magnetic cleanliness is considered. It is shown that the use of the multi-dipole model for the calculation of ~50 nT magnetic interference is limited in the design of small space vehicles that have an increased installation density. The expediency of using a model of its spherical harmonics instead of a multi-dipole model to represent the magnetic field of satellite components was theoretically justified. For the practical application of the model, the budgeting of the projections of the magnetic induction of hindrance to the onboard magnetometer according to the experimentally determined coefficients of the dipole, quadrupole and octupole spherical harmonics is proposed. An algorithm for calculating the coordinates of the location and projections of the magnetic moment of the dipole source inside the satellite based on the results of measuring the coefficients of spherical harmonics of its components is proposed. The possibility of representing the coefficients of the spherical harmonics of the magnetic field of the entire satellite in the form of the sum of the listed corresponding coefficients obtained during field measurements of the components is theoretically justified. It is proposed to use the difference between the calculated and measured values of the corresponding coefficients as a criterion for the quality of the work to ensure magnetic cleanliness. If the proposed procedure is used in the space industry, the quality of ensuring the magnetic cleanliness of small space vehicles can be increased, thereby improving the reliability of their operation in orbit

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Section: Discussion Of Results Of Applying the Model Of Spherical Har...mentioning

confidence: 99%

Section: The Object Of This Study Is the Technology Of Ensuring Magne...mentioning

confidence: 99%

Improving the technology for ensuring the magnetic cleanliness of small spacecraft

Getman

2023

EEJET

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Research on ambiguity problem in magnetic characterization of spacecraft inside a magnetic shielded room

Jin,

Yao,

et al. 2024

Measurement

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The hunt for mineral resources with quantum magnetometers

Stolz,

Schiffler,

Becken

et al. 2023

Tm - Technisches Messen

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Quantum sensing provides advanced technologies which significantly improve sensitivity and accuracy for sensing changes of motion, gravity, electric and magnetic field. Therein, quantum sensors for the detection of magnetic fields, so-called quantum magnetometers, are one of the most promising technological realizations. We firstly will provide a brief overview on methods in geophysical exploration benefitting from quantum magnetometers with resolution at the physical and technical limit. We will introduce recent developments on SQUID and OPM based sensors as specific implementations of a quantum magnetometer systems and application examples.

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Magnetic Dipole Moment Estimation from Nearfield Measurements Using Stochastic Gradient Descent AI Model

Cited by 3 publications

References 11 publications

Improving the technology for ensuring the magnetic cleanliness of small spacecraft

Improving the technology for ensuring the magnetic cleanliness of small spacecraft

Research on ambiguity problem in magnetic characterization of spacecraft inside a magnetic shielded room

The hunt for mineral resources with quantum magnetometers

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