Development of a One-Dimensional Fluxgate Array and Its Application to Magnetocardiogram Measurements

Shoumu Harada, Ichiro Sasada, Feng Hang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have designed an excitation part of the driving circuit of the fundamental mode orthogonal fluxgate (FG) to avoid an interference problem between fluxgates that may occur when individually operating fluxgates are placed closely. In this new design, three sensor heads are driven by a common excitation current while their outputs are processed separately to yield their own outputs. With magnetometers of this design, we have built a 6-channel FG array of a linear arrangement with the spacing of 3 cm, as a step to a 6 × 6 fluxgate array. The excitation frequency was shared by two excitation circuits, each of which provides a set of three sensor heads with the excitation current. A magnetocardiogram (MCG) was measured with the 6-channel FG array by repeatedly sliding the top plate of a bed carrying a healthy volunteer by 3 cm. The distribution of the QRS complex observed on a 5 × 6 of array measurement points resembles with that observed by a SQUID MCG measurement system.

Original languageEnglish
Pages (from-to)20-26
Number of pages7
JournalElectronics and Communications in Japan
Volume98
Issue number4
DOIs
Publication statusPublished - Apr 1 2015

Fingerprint

Excitation
Networks (circuits)
SQUIDs
Sensors
Magnetometers
excitation
SQUID
Sensor
output
Output
sensors
Measurement System
magnetometers
Spacing
sliding
beds
Arrangement
Interference
spacing
interference

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Development of a One-Dimensional Fluxgate Array and Its Application to Magnetocardiogram Measurements. / Harada, Shoumu; Sasada, Ichiro; Hang, Feng.

In: Electronics and Communications in Japan, Vol. 98, No. 4, 01.04.2015, p. 20-26.

Research output: Contribution to journalArticle

@article{366c1b0ea4df4ee68edcc4c84b37bcfd,
title = "Development of a One-Dimensional Fluxgate Array and Its Application to Magnetocardiogram Measurements",
abstract = "We have designed an excitation part of the driving circuit of the fundamental mode orthogonal fluxgate (FG) to avoid an interference problem between fluxgates that may occur when individually operating fluxgates are placed closely. In this new design, three sensor heads are driven by a common excitation current while their outputs are processed separately to yield their own outputs. With magnetometers of this design, we have built a 6-channel FG array of a linear arrangement with the spacing of 3 cm, as a step to a 6 × 6 fluxgate array. The excitation frequency was shared by two excitation circuits, each of which provides a set of three sensor heads with the excitation current. A magnetocardiogram (MCG) was measured with the 6-channel FG array by repeatedly sliding the top plate of a bed carrying a healthy volunteer by 3 cm. The distribution of the QRS complex observed on a 5 × 6 of array measurement points resembles with that observed by a SQUID MCG measurement system.",
author = "Shoumu Harada and Ichiro Sasada and Feng Hang",
year = "2015",
month = "4",
day = "1",
doi = "10.1002/ecj.11645",
language = "English",
volume = "98",
pages = "20--26",
journal = "Electronics and Communications in Japan",
issn = "1942-9533",
publisher = "Scripta Technica",
number = "4",

}

TY - JOUR

T1 - Development of a One-Dimensional Fluxgate Array and Its Application to Magnetocardiogram Measurements

AU - Harada, Shoumu

AU - Sasada, Ichiro

AU - Hang, Feng

PY - 2015/4/1

Y1 - 2015/4/1

N2 - We have designed an excitation part of the driving circuit of the fundamental mode orthogonal fluxgate (FG) to avoid an interference problem between fluxgates that may occur when individually operating fluxgates are placed closely. In this new design, three sensor heads are driven by a common excitation current while their outputs are processed separately to yield their own outputs. With magnetometers of this design, we have built a 6-channel FG array of a linear arrangement with the spacing of 3 cm, as a step to a 6 × 6 fluxgate array. The excitation frequency was shared by two excitation circuits, each of which provides a set of three sensor heads with the excitation current. A magnetocardiogram (MCG) was measured with the 6-channel FG array by repeatedly sliding the top plate of a bed carrying a healthy volunteer by 3 cm. The distribution of the QRS complex observed on a 5 × 6 of array measurement points resembles with that observed by a SQUID MCG measurement system.

AB - We have designed an excitation part of the driving circuit of the fundamental mode orthogonal fluxgate (FG) to avoid an interference problem between fluxgates that may occur when individually operating fluxgates are placed closely. In this new design, three sensor heads are driven by a common excitation current while their outputs are processed separately to yield their own outputs. With magnetometers of this design, we have built a 6-channel FG array of a linear arrangement with the spacing of 3 cm, as a step to a 6 × 6 fluxgate array. The excitation frequency was shared by two excitation circuits, each of which provides a set of three sensor heads with the excitation current. A magnetocardiogram (MCG) was measured with the 6-channel FG array by repeatedly sliding the top plate of a bed carrying a healthy volunteer by 3 cm. The distribution of the QRS complex observed on a 5 × 6 of array measurement points resembles with that observed by a SQUID MCG measurement system.

UR - http://www.scopus.com/inward/record.url?scp=84924985083&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924985083&partnerID=8YFLogxK

U2 - 10.1002/ecj.11645

DO - 10.1002/ecj.11645

M3 - Article

AN - SCOPUS:84924985083

VL - 98

SP - 20

EP - 26

JO - Electronics and Communications in Japan

JF - Electronics and Communications in Japan

SN - 1942-9533

IS - 4

ER -