Development of a resonant excitation coil of AC magnetometer for evaluation of magnetic fluid

Mohd Mawardi Saari; Nazatul Sharreena Suhaimi; Saifudin Razali; Nurul Akmal Che Lah; Kenji Sakai; Toshihiko Kiwa; Keiji Tsukada

Development of a resonant excitation coil of AC magnetometer for evaluation of magnetic fluid

Mohd Mawardi Saari, Nazatul Sharreena Suhaimi, Saifudin Razali, Nurul Akmal Che Lah, Kenji Sakai, Toshihiko Kiwa, Keiji Tsukada

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A high-homogeneity excitation coil with a resonant circuit for AC magnetometer is developed. A solenoid coil is designed to produce a high-homogeneity and strong excitation field using a resonant frequency method. The solenoid coil is fabricated with a Litz wire to suppress the increase of AC resistance due to the skin and proximity effects in the high-frequency region. The Litz wire is composed of 60 strands of copper wires with 0.1-mm diameter. The resonant frequency method is applied to cancel the reactance component by connecting the excitation coil with a capacitor in a series configuration. To enable excitation of the magnetic field at multiple frequencies, a resonant circuit consists of multiple values of resonant capacitors is constructed. The fabricated excitation coil showed a high homogeneity of the magnetic field and was able to maintain a constant resonant current up to 32.5 kHz.

Original language	English
Pages (from-to)	127-130
Number of pages	4
Journal	Journal of Telecommunication, Electronic and Computer Engineering
Volume	10
Issue number	1-2
Publication status	Published - Jan 1 2018

Keywords

Coil
Impedance
Magnetometer
Resonant Circuit

ASJC Scopus subject areas

Hardware and Architecture
Computer Networks and Communications
Electrical and Electronic Engineering

Cite this

@article{89c9cf9ae7924d1f9a4509580b9396aa,

title = "Development of a resonant excitation coil of AC magnetometer for evaluation of magnetic fluid",

abstract = "A high-homogeneity excitation coil with a resonant circuit for AC magnetometer is developed. A solenoid coil is designed to produce a high-homogeneity and strong excitation field using a resonant frequency method. The solenoid coil is fabricated with a Litz wire to suppress the increase of AC resistance due to the skin and proximity effects in the high-frequency region. The Litz wire is composed of 60 strands of copper wires with 0.1-mm diameter. The resonant frequency method is applied to cancel the reactance component by connecting the excitation coil with a capacitor in a series configuration. To enable excitation of the magnetic field at multiple frequencies, a resonant circuit consists of multiple values of resonant capacitors is constructed. The fabricated excitation coil showed a high homogeneity of the magnetic field and was able to maintain a constant resonant current up to 32.5 kHz.",

keywords = "Coil, Impedance, Magnetometer, Resonant Circuit",

author = "Saari, {Mohd Mawardi} and Suhaimi, {Nazatul Sharreena} and Saifudin Razali and {Che Lah}, {Nurul Akmal} and Kenji Sakai and Toshihiko Kiwa and Keiji Tsukada",

note = "Funding Information: This work was supported by Ministry of Higher Education of Malaysia under grant number of RDU 160115 and Research Management Center of Universiti Malaysia Pahang under grant number of RDU 170377. Publisher Copyright: {\textcopyright} 2018 Universiti Teknikal Malaysia Melaka. All rights reserved.",

year = "2018",

month = jan,

day = "1",

language = "English",

volume = "10",

pages = "127--130",

journal = "Journal of Telecommunication, Electronic and Computer Engineering",

issn = "2180-1843",

publisher = "Universiti Teknikal Malaysia Melaka",

number = "1-2",

}

TY - JOUR

T1 - Development of a resonant excitation coil of AC magnetometer for evaluation of magnetic fluid

AU - Saari, Mohd Mawardi

AU - Suhaimi, Nazatul Sharreena

AU - Razali, Saifudin

AU - Che Lah, Nurul Akmal

AU - Sakai, Kenji

AU - Kiwa, Toshihiko

AU - Tsukada, Keiji

N1 - Funding Information: This work was supported by Ministry of Higher Education of Malaysia under grant number of RDU 160115 and Research Management Center of Universiti Malaysia Pahang under grant number of RDU 170377. Publisher Copyright: © 2018 Universiti Teknikal Malaysia Melaka. All rights reserved.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - A high-homogeneity excitation coil with a resonant circuit for AC magnetometer is developed. A solenoid coil is designed to produce a high-homogeneity and strong excitation field using a resonant frequency method. The solenoid coil is fabricated with a Litz wire to suppress the increase of AC resistance due to the skin and proximity effects in the high-frequency region. The Litz wire is composed of 60 strands of copper wires with 0.1-mm diameter. The resonant frequency method is applied to cancel the reactance component by connecting the excitation coil with a capacitor in a series configuration. To enable excitation of the magnetic field at multiple frequencies, a resonant circuit consists of multiple values of resonant capacitors is constructed. The fabricated excitation coil showed a high homogeneity of the magnetic field and was able to maintain a constant resonant current up to 32.5 kHz.

AB - A high-homogeneity excitation coil with a resonant circuit for AC magnetometer is developed. A solenoid coil is designed to produce a high-homogeneity and strong excitation field using a resonant frequency method. The solenoid coil is fabricated with a Litz wire to suppress the increase of AC resistance due to the skin and proximity effects in the high-frequency region. The Litz wire is composed of 60 strands of copper wires with 0.1-mm diameter. The resonant frequency method is applied to cancel the reactance component by connecting the excitation coil with a capacitor in a series configuration. To enable excitation of the magnetic field at multiple frequencies, a resonant circuit consists of multiple values of resonant capacitors is constructed. The fabricated excitation coil showed a high homogeneity of the magnetic field and was able to maintain a constant resonant current up to 32.5 kHz.

KW - Coil

KW - Impedance

KW - Magnetometer

KW - Resonant Circuit

UR - http://www.scopus.com/inward/record.url?scp=85045130137&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045130137&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85045130137

SN - 2180-1843

VL - 10

SP - 127

EP - 130

JO - Journal of Telecommunication, Electronic and Computer Engineering

JF - Journal of Telecommunication, Electronic and Computer Engineering

IS - 1-2

ER -

Development of a resonant excitation coil of AC magnetometer for evaluation of magnetic fluid

Abstract

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this