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Magnetometers: Development and Application for the Last Decade

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: closed (28 February 2021) | Viewed by 4388

Special Issue Editor


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Guest Editor
Department of Physics, Saint-Petersburg State University, St Petersburg, Russia
Interests: antirelaxation coatings; optical pumping; atomic physics; quantum optics; quantum magnetometry; NMR spectroscopy of antirelaxation coating materials; Raman spectroscopy of antirelaxation coating material; metamaterials; micro-cells; surface physics; alkali metal atom–surface interaction.

Special Issue Information

Dear Colleagues,

A magnetometer is a device for the measurement of certain magnetic field parameters. Magnetometers are built on a wide variety of principles of physics. Each type of magnetometer has its own advantages and disadvantages, but it is very important to achieve the best metrological characteristics for the device. The main metrological characteristics are sensitivity, accuracy, range of detected magnetic field, and sampling rate. It is very important to optimize the technical characteristics of the magnetometer, such as weight, portability and compactness, energy consumption, reliability, and self-sustainment. Therefore, each field of application of the magnetometer demands its own set of characteristics. Metrology of magnetic measurement, in general, and accurateness of the metrological verification of declared characteristics, in particular, are the relevant aspects for the estimation of magnetometer sensitivity. There has been significant progress in quantum magnetometers research and development in the last decade. New results were obtained in an application of the magnetometers for biomagnetic investigations and from the search for new types of interactions in fundamental physics. This Special Issue reflects at least part of the progress.

Dr. Mikhail Balabas
Guest Editor

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Keywords

  • Magnetometer
  • sensitivity
  • accuracy
  • range of detected magnetic field
  • sampling rate
  • weight
  • portability and compactness
  • energy consumption
  • reliability and self-sustainment
  • metrology of magnetic measurement

Published Papers (1 paper)

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Research

9 pages, 1661 KiB  
Article
A Magnetic Field Camera for Real-Time Subsurface Imaging Applications
by Andriyan Bayu Suksmono, Donny Danudirdjo, Antonius Darma Setiawan, Dien Rahmawati and Rizki Putra Prastio
Appl. Sci. 2021, 11(8), 3302; https://doi.org/10.3390/app11083302 - 7 Apr 2021
Cited by 4 | Viewed by 3875
Abstract
We have constructed an imaging device that is capable of showing the spatio-temporal distribution of magnetic flux density in real-time. The device employs a set of AMR (anisotropic magneto-resistance) three-axis magnetometers, which are arranged into a two-dimensional sensor array. All of the magnetic [...] Read more.
We have constructed an imaging device that is capable of showing the spatio-temporal distribution of magnetic flux density in real-time. The device employs a set of AMR (anisotropic magneto-resistance) three-axis magnetometers, which are arranged into a two-dimensional sensor array. All of the magnetic field values measured by the array are collected by a microcontroller, which pre-processes and sends the data to a PDU (processing and display unit) implemented on a smartphone/tablet or a computer. The interpolation algorithm and display software in the PDU present the field as a high-resolution video; thus, the device works as a magnetic field camera. In the experiments, we employ the camera to map the field distribution of the distorted ambient magnetic field caused by a hidden object. The obtained image of field shows both the position and shape of the object. We also demonstrate the capability of the device to image a loaded power-line cable carrying a 50 Hz alternating current. Full article
(This article belongs to the Special Issue Magnetometers: Development and Application for the Last Decade)
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