An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization

An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization

An AC magnetometer using a resonant excitation coil is presented for magnetic nanoparticles characterization. An automatic resonant frequency switching of the excitation coil circuit is developed to reduce the measurement time and human contributed errors. A network capacitor consists of 13 differen...

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Main Authors: Mohd Mawardi, Saari, Mohd Aufa, Hadi Putera Zaini, Hamzah, Ahmad, Nurul Akmal, Che Lah
Format: Conference or Workshop Item
Language:English
English
Published: 2018
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://umpir.ump.edu.my/id/eprint/22258/
http://umpir.ump.edu.my/id/eprint/22258/1/6.%20An%20AC%20magnetometer%20using%20automatic%20frequency%20switching%20of%20a%20resonant.pdf
http://umpir.ump.edu.my/id/eprint/22258/2/6.1%20An%20AC%20magnetometer%20using%20automatic%20frequency%20switching%20of%20a%20resonant.pdf
id ump-22258
recordtype eprints
spelling ump-222582018-12-10T04:24:19Z http://umpir.ump.edu.my/id/eprint/22258/ An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization Mohd Mawardi, Saari Mohd Aufa, Hadi Putera Zaini Hamzah, Ahmad Nurul Akmal, Che Lah TK Electrical engineering. Electronics Nuclear engineering An AC magnetometer using a resonant excitation coil is presented for magnetic nanoparticles characterization. An automatic resonant frequency switching of the excitation coil circuit is developed to reduce the measurement time and human contributed errors. A network capacitor consists of 13 different capacitance values is fabricated and controlled by using a relay module and a microcontroller. The resonant circuit of the excitation coil is resonated up to 81.36 kHz to reduce its impedance observed by a current amplifier. The impedance of the resonant excitation coil is evaluated to access the effectiveness of the resonant technique. A first-order differential coil is used to sense the magnetization from a sample and its sensitivity with respect to magnetic moment and frequency is measured. Using the developed system, we measure the complex magnetization of a multi-core iron oxide nanoparticles solution and estimated its hydrodynamic size. 2018 Conference or Workshop Item NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/22258/1/6.%20An%20AC%20magnetometer%20using%20automatic%20frequency%20switching%20of%20a%20resonant.pdf pdf en http://umpir.ump.edu.my/id/eprint/22258/2/6.1%20An%20AC%20magnetometer%20using%20automatic%20frequency%20switching%20of%20a%20resonant.pdf Mohd Mawardi, Saari and Mohd Aufa, Hadi Putera Zaini and Hamzah, Ahmad and Nurul Akmal, Che Lah (2018) An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization. In: 9th IEEE Control And System Graduate Research Colloquium (ICSGRC 2018), 3 - 4 Aug 2018 , Shah Alam, Selangor. pp. 1-4.. (Unpublished)
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Mohd Mawardi, Saari
Mohd Aufa, Hadi Putera Zaini
Hamzah, Ahmad
Nurul Akmal, Che Lah
An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization
description An AC magnetometer using a resonant excitation coil is presented for magnetic nanoparticles characterization. An automatic resonant frequency switching of the excitation coil circuit is developed to reduce the measurement time and human contributed errors. A network capacitor consists of 13 different capacitance values is fabricated and controlled by using a relay module and a microcontroller. The resonant circuit of the excitation coil is resonated up to 81.36 kHz to reduce its impedance observed by a current amplifier. The impedance of the resonant excitation coil is evaluated to access the effectiveness of the resonant technique. A first-order differential coil is used to sense the magnetization from a sample and its sensitivity with respect to magnetic moment and frequency is measured. Using the developed system, we measure the complex magnetization of a multi-core iron oxide nanoparticles solution and estimated its hydrodynamic size.
format Conference or Workshop Item
author Mohd Mawardi, Saari
Mohd Aufa, Hadi Putera Zaini
Hamzah, Ahmad
Nurul Akmal, Che Lah
author_facet Mohd Mawardi, Saari
Mohd Aufa, Hadi Putera Zaini
Hamzah, Ahmad
Nurul Akmal, Che Lah
author_sort Mohd Mawardi, Saari
title An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization
title_short An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization
title_full An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization
title_fullStr An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization
title_full_unstemmed An AC magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization
title_sort ac magnetometer using automatic frequency switching of a resonant excitation coil for magnetic nanoparticles characterization
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/22258/
http://umpir.ump.edu.my/id/eprint/22258/1/6.%20An%20AC%20magnetometer%20using%20automatic%20frequency%20switching%20of%20a%20resonant.pdf
http://umpir.ump.edu.my/id/eprint/22258/2/6.1%20An%20AC%20magnetometer%20using%20automatic%20frequency%20switching%20of%20a%20resonant.pdf
first_indexed 2023-09-18T22:33:02Z
last_indexed 2023-09-18T22:33:02Z
_version_ 1777416413161455616

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