A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region

A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region

In order to tailor magnetic nanoparticles (MNPs) for intended applications, it is important to unravel their dynamics with respect to excitation magnetic field. In this work, we report on the development of a sensitive AC magnetometer using a resonant excitation coil for this purpose. The excitation...

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Main Authors: Mohd Mawardi, Saari, Nazatul Sharreena, Suhaimi, Nurul Akmal, Che Lah, Sakai, Kenji, Toshihiko, Kiwa
Format: Conference or Workshop Item
Language:English
Published: 2018
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://umpir.ump.edu.my/id/eprint/21324/
http://umpir.ump.edu.my/id/eprint/21324/
http://umpir.ump.edu.my/id/eprint/21324/1/43.1%20A%20sensitive%20ac%20magnetometer%20using%20a%20resonant%20excitation%20coil%20for%20characterization%20of%20magnetic%20fluid%20in%20nonlinear%20magnetization%20region.pdf
id ump-21324
recordtype eprints
spelling ump-213242018-06-08T03:04:25Z http://umpir.ump.edu.my/id/eprint/21324/ A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region Mohd Mawardi, Saari Nazatul Sharreena, Suhaimi Nurul Akmal, Che Lah Sakai, Kenji Toshihiko, Kiwa TK Electrical engineering. Electronics Nuclear engineering In order to tailor magnetic nanoparticles (MNPs) for intended applications, it is important to unravel their dynamics with respect to excitation magnetic field. In this work, we report on the development of a sensitive AC magnetometer using a resonant excitation coil for this purpose. The excitation coil fabricated from a Litz wire is connected to a capacitor network to effectively reduce the impedance of the circuit. The high efficiency showed by the excitation coil enables investigation of MNP’s dynamics in the nonlinear magnetization region. We demonstrate the sensitivity of the developed system by measuring the harmonics of a multicore iron oxide nanoparticle solution down to 300 ng/ml of iron concentration. We experimentally show that the first harmonic component is not completely ‘transparent’ to the diamagnetic background of the carrier liquid compared to the higher harmonics. We also demonstrate the complex magnetization measurement of the iron oxide nanoparticles in solution and dry states from 3 Hz to 18 kHz. A highly sensitive exploration of MNPs’ dynamics can be expected using the developed AC magnetometer. 2018 Conference or Workshop Item NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/21324/1/43.1%20A%20sensitive%20ac%20magnetometer%20using%20a%20resonant%20excitation%20coil%20for%20characterization%20of%20magnetic%20fluid%20in%20nonlinear%20magnetization%20region.pdf Mohd Mawardi, Saari and Nazatul Sharreena, Suhaimi and Nurul Akmal, Che Lah and Sakai, Kenji and Toshihiko, Kiwa (2018) A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region. In: IEEE International Magnetics Conference (INTERMAG 2018), 23-27 April 2018 , Marina Bay Sands, Singapore. p. 1.. (Unpublished) https://www.researchgate.net/profile/Mohd_Saari/publication/323392983_Development_of_A_Resonant_Excitation_Coil_of_AC_Magnetometer_for_Evaluation_of_Magnetic_Fluid/links/5ae820cfa6fdcc03cd8dd0ab/Development-of-A-Resonant-Excitation-Coil-of-AC-Magnetometer
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Mohd Mawardi, Saari
Nazatul Sharreena, Suhaimi
Nurul Akmal, Che Lah
Sakai, Kenji
Toshihiko, Kiwa
A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region
description In order to tailor magnetic nanoparticles (MNPs) for intended applications, it is important to unravel their dynamics with respect to excitation magnetic field. In this work, we report on the development of a sensitive AC magnetometer using a resonant excitation coil for this purpose. The excitation coil fabricated from a Litz wire is connected to a capacitor network to effectively reduce the impedance of the circuit. The high efficiency showed by the excitation coil enables investigation of MNP’s dynamics in the nonlinear magnetization region. We demonstrate the sensitivity of the developed system by measuring the harmonics of a multicore iron oxide nanoparticle solution down to 300 ng/ml of iron concentration. We experimentally show that the first harmonic component is not completely ‘transparent’ to the diamagnetic background of the carrier liquid compared to the higher harmonics. We also demonstrate the complex magnetization measurement of the iron oxide nanoparticles in solution and dry states from 3 Hz to 18 kHz. A highly sensitive exploration of MNPs’ dynamics can be expected using the developed AC magnetometer.
format Conference or Workshop Item
author Mohd Mawardi, Saari
Nazatul Sharreena, Suhaimi
Nurul Akmal, Che Lah
Sakai, Kenji
Toshihiko, Kiwa
author_facet Mohd Mawardi, Saari
Nazatul Sharreena, Suhaimi
Nurul Akmal, Che Lah
Sakai, Kenji
Toshihiko, Kiwa
author_sort Mohd Mawardi, Saari
title A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region
title_short A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region
title_full A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region
title_fullStr A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region
title_full_unstemmed A sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region
title_sort sensitive ac magnetometer using a resonant excitation coil for characterization of magnetic fluid in nonlinear magnetization region
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/21324/
http://umpir.ump.edu.my/id/eprint/21324/
http://umpir.ump.edu.my/id/eprint/21324/1/43.1%20A%20sensitive%20ac%20magnetometer%20using%20a%20resonant%20excitation%20coil%20for%20characterization%20of%20magnetic%20fluid%20in%20nonlinear%20magnetization%20region.pdf
first_indexed 2023-09-18T22:31:14Z
last_indexed 2023-09-18T22:31:14Z
_version_ 1777416299610112000

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