Absolute-magnetic-field measurement using nanogranular in-gap magnetic sensor with second-harmonic and liquid-nitrogen-temperature operation

Keiji Tsukada, Takuya Yasugi, Yatsuse Majima, Kenji Sakai, Toshihiko Kiwa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

To detect the absolute magnetic field, such as the earth's magnetic field, a linear magnetic response, a zero point, and thermal stability are required. We thus propose an operating method and sensor probe consisting of a nanogranular in-gap magnetic sensor (GIGS), an operational amplifier integrated circuit, and a modulation coil. The sensor probe was operated in second-harmonic mode at a liquid-nitrogen (Liq. N2) temperature. When an AC magnetic field was applied to GIGS, the second-harmonic signal was generated and modulated by the outer magnetic field to be measured. After lock-in detection, the modulated output signal showed good linearity and a zero point. Moreover, higher sensitivity and low noise with low thermal fluctuation was obtained by the cooling at Liq. N2 temperature.
Original languageEnglish
Pages (from-to)56670
JournalAIP Advances
Volume7
Issue number5
DOIs
Publication statusPublished - May 1 2017
Externally publishedYes

Fingerprint

liquid nitrogen
harmonics
sensors
magnetic fields
low noise
linearity
integrated circuits
temperature
alternating current
coils
amplifiers
cooling
modulation
probes
output
sensitivity

Cite this

Absolute-magnetic-field measurement using nanogranular in-gap magnetic sensor with second-harmonic and liquid-nitrogen-temperature operation. / Tsukada, Keiji; Yasugi, Takuya; Majima, Yatsuse; Sakai, Kenji; Kiwa, Toshihiko.

In: AIP Advances, Vol. 7, No. 5, 01.05.2017, p. 56670.

Research output: Contribution to journalArticle

@article{3e3c0c1b731640109f4827428b8df882,
title = "Absolute-magnetic-field measurement using nanogranular in-gap magnetic sensor with second-harmonic and liquid-nitrogen-temperature operation",
abstract = "To detect the absolute magnetic field, such as the earth's magnetic field, a linear magnetic response, a zero point, and thermal stability are required. We thus propose an operating method and sensor probe consisting of a nanogranular in-gap magnetic sensor (GIGS), an operational amplifier integrated circuit, and a modulation coil. The sensor probe was operated in second-harmonic mode at a liquid-nitrogen (Liq. N2) temperature. When an AC magnetic field was applied to GIGS, the second-harmonic signal was generated and modulated by the outer magnetic field to be measured. After lock-in detection, the modulated output signal showed good linearity and a zero point. Moreover, higher sensitivity and low noise with low thermal fluctuation was obtained by the cooling at Liq. N2 temperature.",
author = "Keiji Tsukada and Takuya Yasugi and Yatsuse Majima and Kenji Sakai and Toshihiko Kiwa",
year = "2017",
month = "5",
day = "1",
doi = "10.1063/1.4978217",
language = "English",
volume = "7",
pages = "56670",
journal = "AIP Advances",
issn = "2158-3226",
publisher = "American Institute of Physics Publising LLC",
number = "5",

}

TY - JOUR

T1 - Absolute-magnetic-field measurement using nanogranular in-gap magnetic sensor with second-harmonic and liquid-nitrogen-temperature operation

AU - Tsukada, Keiji

AU - Yasugi, Takuya

AU - Majima, Yatsuse

AU - Sakai, Kenji

AU - Kiwa, Toshihiko

PY - 2017/5/1

Y1 - 2017/5/1

N2 - To detect the absolute magnetic field, such as the earth's magnetic field, a linear magnetic response, a zero point, and thermal stability are required. We thus propose an operating method and sensor probe consisting of a nanogranular in-gap magnetic sensor (GIGS), an operational amplifier integrated circuit, and a modulation coil. The sensor probe was operated in second-harmonic mode at a liquid-nitrogen (Liq. N2) temperature. When an AC magnetic field was applied to GIGS, the second-harmonic signal was generated and modulated by the outer magnetic field to be measured. After lock-in detection, the modulated output signal showed good linearity and a zero point. Moreover, higher sensitivity and low noise with low thermal fluctuation was obtained by the cooling at Liq. N2 temperature.

AB - To detect the absolute magnetic field, such as the earth's magnetic field, a linear magnetic response, a zero point, and thermal stability are required. We thus propose an operating method and sensor probe consisting of a nanogranular in-gap magnetic sensor (GIGS), an operational amplifier integrated circuit, and a modulation coil. The sensor probe was operated in second-harmonic mode at a liquid-nitrogen (Liq. N2) temperature. When an AC magnetic field was applied to GIGS, the second-harmonic signal was generated and modulated by the outer magnetic field to be measured. After lock-in detection, the modulated output signal showed good linearity and a zero point. Moreover, higher sensitivity and low noise with low thermal fluctuation was obtained by the cooling at Liq. N2 temperature.

U2 - 10.1063/1.4978217

DO - 10.1063/1.4978217

M3 - Article

VL - 7

SP - 56670

JO - AIP Advances

JF - AIP Advances

SN - 2158-3226

IS - 5

ER -