Geomagnetic sensors based on Metglas/PZT laminates

Giang, D.T. Huong; Duc, Pierre–Alain; Ngọc, Ninh Thị; Duc, Nguyen Huu

doi:10.1016/j.sna.2012.03.030

Cited by 41 publications

(20 citation statements)

References 19 publications

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“…체인 Fe, Co 및 Ni을 PZT와 조합하여 적층구조의 ME 소자를 연구하였으며 [9], 최근에는 Ni을 기본으로 한 다양한 구조의 ME 소자의 연구가 보고되고 있다 [8,[10][11][12][13]. 특히 K. Bi …”

Section: 수년 전 Laletin Et Al은 이러한 천이금속 강자성unclassified

“…그 중에서도 적층구조가 벌크형 소자보다 ME 계수가 크므로 최근 연구의 중심이 되고 있다 [4,7,8]. 이러한 적층구조의 ME 효과는 압전층의 압전 효과와 자성체층의 자왜효과가 상호 결합에 의하여 나 타나는데, Terfenol-D 및 Metaglas와 같은 거대 자왜 물질과 PZT 조합에서 큰 ME 전압이 나타남을 보였다 [4].…”

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Magnetoelectric Characteristics on Layered Ni-PZT-Ni, Co, Fe Composites for Magnetic Field Sensor

Ryu

2015

Journal of the Korean Institute of Electrical and Electronic Ma

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Abstract:The magnetoelectric characteristics on layered Ni-PZT-Ni, Co, Fe composites by epoxy bonding for magnetic field sensor were investigated in the low-frequency range. The ME coefficient of Ni-PZT-Ni, Ni-PZT-Co and Ni-PZT-Fe composites reaches a maximum of 200 mV/cm·Oe at Hdc=110 Oe, 106 mV/cm·Oe at Hdc=90 Oe and 87 mV/cm·Oe at Hdc=160 Oe, respectively. A trend of ME charateristics on Ni-PZT-Co, Ni-PZT-Fe composites was similar to that of Ni-PZT-Ni composites . The ME output voltage shows linearly proportional to ac field Hac and is about 0∼150 mV at Hac=0∼7 Oe and f=110 Hz in the typical Ni-PZT-Ni sample. The frequency shift effect due to the load resistance RL shows that the frequency range for magnetic field sensor application can be modulated with appropriate load resistance RL. This sample will allow for a low-magnetic ac field sensor in the low-frequency (near f=110 Hz).

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Section: 수년 전 Laletin Et Al은 이러한 천이금속 강자성unclassified

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Magnetoelectric Characteristics on Layered Ni-PZT-Ni, Co, Fe Composites for Magnetic Field Sensor

Ryu

2015

Journal of the Korean Institute of Electrical and Electronic Ma

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“…For the measurement of the terrestrial magnetic fields, magnetoelectric (ME) effect -based sensors have recently attracted much attention [1][2][3][4][5][6]. In comparison with the traditional types of magnetic sensors, which are based on fluxgate, Hall effects, superconducting quantum interference and giant magnetoresistance spin valves, etc.…”

Section: Introductionmentioning

confidence: 99%

“…In comparison with the traditional types of magnetic sensors, which are based on fluxgate, Hall effects, superconducting quantum interference and giant magnetoresistance spin valves, etc. this generation of new magnetic sensor exhibits higher sensitivity to the intensity as well as to the direction of the geomagnetic field [1,5]. Furthermore, this sensor shows additional advantages, such as simple and low-cost fabrication, and in particular, room-temperature operation.…”

Section: Introductionmentioning

confidence: 99%

“…In such approaches, sandwich-type Metglas/PZT/Metglas laminate structures with long rectangular shapes, among others, have exhibited a huge magnetoelectric voltage coefficient (MEVC) of up to 22 V/cmOe [10]. Recently, we have achieved an enhancement of the dc-magnetic-field sensitivity of the ME sensor by using an elongated laminate shape [5]. This enhancement was thought to be related to the reduced demagnetization effects.…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of the Magnetic Flux in Metglas/PZT-Magnetoelectric Integrated 2D Geomagnetic Device

Giang¹,

Duc²,

Ngọc³

et al. 2012

Journal of Magnetics

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Experimental investigations of the magnetization, magnetostriction and magnetoelectric (ME) effects were performed on sandwich -type Metglas/PZT/Metglas laminate composites. The results have been analyzed by taking into account the demagnetization contribution. The study has pointed out that the magnetic flux concentration is strongly improved in piezomagnetic laminates with a narrower width leading to a significant enhancement of the ME effects. The piezomagnetic laminates with the optimal area dimension were integrated to form a 2-D geomagnetic device, which simultaneously can precisely detect the strength as well as inclination of the earth's magnetic field. In this case, a magnetic field resolution of better than 10 −4 Oe and an angle precision of ± 0.1 o were determined. This simple and low-cost geomagnetic-field device is promising for various applications.

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Relatively Low‐Frequency Magnetic Field Detection System Using Metglas/PZT‐5B Sensor

Jiang,

Liu,

Jin

et al. 2024

Physica Rapid Research Ltrs

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The magnetoelectric (ME) sensor, a new and promising type of magnetic field sensor with ultrahigh sensitivity. However, there are few reports on the research of real‐time measurement system which can promote its practical application. In this study, a novel real‐time measuring approach for weak AC magnetic fields at relatively low frequency was proposed using Metglas/PZT‐5B magnetoelectric sensors. The system mainly consists of an oscilloscope, a signal generator and a program developed with LabVIEW programming. Real‐time measurement of relatively low frequency magnetic fields have been achieved by using frequency up‐conversion methods,simultaneously display the frequency and magnitude of the magnetic field. As a result, the real‐time measurement system was able to detect a weak AC magnetic field as low as 0.1 nT@1Hz, which is promising to push the ME sensor to practical application.This article is protected by copyright. All rights reserved.

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Geomagnetic sensors based on Metglas/PZT laminates

Cited by 41 publications

References 19 publications

Magnetoelectric Characteristics on Layered Ni-PZT-Ni, Co, Fe Composites for Magnetic Field Sensor

Magnetoelectric Characteristics on Layered Ni-PZT-Ni, Co, Fe Composites for Magnetic Field Sensor

Enhancement of the Magnetic Flux in Metglas/PZT-Magnetoelectric Integrated 2D Geomagnetic Device

Relatively Low‐Frequency Magnetic Field Detection System Using Metglas/PZT‐5B Sensor

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