Self-powered low noise magnetic sensor

Junqi Gao; Zhiguang Wang; Ying Shen; Menghui Li; Yaojin Wang; Peter Finkel; Jiefang Li; D. Viehland

doi:10.1016/j.matlet.2012.05.067

Self-powered low noise magnetic sensor

Junqi Gao
, Zhiguang Wang
, Ying Shen
, Menghui Li
, Yaojin Wang
, Peter Finkel
, Jiefang Li
, D. Viehland

Virginia Polytechnic Institute and State University
Naval Undersea Warfare Center

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

18 Scopus citations

Abstract

In this letter, we present a self-powered magnetic sensor based on Metglas/Pb(Mg _1/3Nb _2/3)O ₃-PbTiO ₃ (PMN-PT) laminates which has an extremely low equivalent magnetic noise in the quasi-static frequency range of f < 100 Hz. The magnetic noise density was only 7 pT/√Hz at 1 Hz and less than 2 pT/√Hz for 10 Hz < f < 100 Hz. In addition, the Metglas/PMN-PT laminates can be used to harvest magnetic energy at their resonant frequencies. The maximum output power reaches 8 mW/Oe under an 11 kΩ load resistance. Highly efficient magnetic energy harvesters can be used to charge a battery. Thus, we have developed self-powered magnetic sensors capable of long term deployment.

Original language	English
Pages (from-to)	178-180
Number of pages	3
Journal	Materials Letters
Volume	82
DOIs	https://doi.org/10.1016/j.matlet.2012.05.067
State	Published - 1 Sep 2012
Externally published	Yes

Keywords

Ceramics
Magnetic sensor

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10.1016/j.matlet.2012.05.067

Cite this

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title = "Self-powered low noise magnetic sensor",

abstract = "In this letter, we present a self-powered magnetic sensor based on Metglas/Pb(Mg 1/3Nb 2/3)O 3-PbTiO 3 (PMN-PT) laminates which has an extremely low equivalent magnetic noise in the quasi-static frequency range of f < 100 Hz. The magnetic noise density was only 7 pT/√Hz at 1 Hz and less than 2 pT/√Hz for 10 Hz < f < 100 Hz. In addition, the Metglas/PMN-PT laminates can be used to harvest magnetic energy at their resonant frequencies. The maximum output power reaches 8 mW/Oe under an 11 kΩ load resistance. Highly efficient magnetic energy harvesters can be used to charge a battery. Thus, we have developed self-powered magnetic sensors capable of long term deployment.",

keywords = "Ceramics, Magnetic sensor",

author = "Junqi Gao and Zhiguang Wang and Ying Shen and Menghui Li and Yaojin Wang and Peter Finkel and Jiefang Li and D. Viehland",

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doi = "10.1016/j.matlet.2012.05.067",

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TY - JOUR

T1 - Self-powered low noise magnetic sensor

AU - Gao, Junqi

AU - Wang, Zhiguang

AU - Shen, Ying

AU - Li, Menghui

AU - Wang, Yaojin

AU - Finkel, Peter

AU - Li, Jiefang

AU - Viehland, D.

PY - 2012/9/1

Y1 - 2012/9/1

N2 - In this letter, we present a self-powered magnetic sensor based on Metglas/Pb(Mg 1/3Nb 2/3)O 3-PbTiO 3 (PMN-PT) laminates which has an extremely low equivalent magnetic noise in the quasi-static frequency range of f < 100 Hz. The magnetic noise density was only 7 pT/√Hz at 1 Hz and less than 2 pT/√Hz for 10 Hz < f < 100 Hz. In addition, the Metglas/PMN-PT laminates can be used to harvest magnetic energy at their resonant frequencies. The maximum output power reaches 8 mW/Oe under an 11 kΩ load resistance. Highly efficient magnetic energy harvesters can be used to charge a battery. Thus, we have developed self-powered magnetic sensors capable of long term deployment.

AB - In this letter, we present a self-powered magnetic sensor based on Metglas/Pb(Mg 1/3Nb 2/3)O 3-PbTiO 3 (PMN-PT) laminates which has an extremely low equivalent magnetic noise in the quasi-static frequency range of f < 100 Hz. The magnetic noise density was only 7 pT/√Hz at 1 Hz and less than 2 pT/√Hz for 10 Hz < f < 100 Hz. In addition, the Metglas/PMN-PT laminates can be used to harvest magnetic energy at their resonant frequencies. The maximum output power reaches 8 mW/Oe under an 11 kΩ load resistance. Highly efficient magnetic energy harvesters can be used to charge a battery. Thus, we have developed self-powered magnetic sensors capable of long term deployment.

KW - Ceramics

KW - Magnetic sensor

UR - https://www.scopus.com/pages/publications/84863098972

U2 - 10.1016/j.matlet.2012.05.067

DO - 10.1016/j.matlet.2012.05.067

M3 - 文章

AN - SCOPUS:84863098972

SN - 0167-577X

VL - 82

SP - 178

EP - 180

JO - Materials Letters

JF - Materials Letters

ER -

Self-powered low noise magnetic sensor

Abstract

Keywords

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