Coil-Less Fluxgate Effect in Amorphous Co71Fe1Mo1Mn4Si14B9 Ribbon

In this study, the coil-less fluxgate effect in Co71Fe1Mo1Mn4Si14B9 amorphous ribbon was investigated. The coil-less fluxgate is a new type of fluxgate sensor without a coil. It is based on helical anisotropy and deep circumferential magnetic saturation in the ferromagnetic fluxgate core. Coil-less fluxgate measurements were performed in as-cast and annealed ribbons at 480 mA current with 3, 12.5 and 25 rad/m torsion. The second harmonic of the output voltage detected from the ends of the wire show a linear variation in the low magnetic field region. The sensitivity of the current annealed ribbons in the presence of 25 rad/m torsion is about 570 V/T, which is comparable with previously reported fluxgate sensitivity values. The presented sensor has no coil so it is much easier to reduce the size of the sensor and easy to fabricate it.

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Cherenkov and Slow Cyclotron Instability in Periodically Corrugated Cylindrical Waveguide with Low Magnetic Field Region

IEEJ Transactions on Fundamentals and Materials ◽

10.1541/ieejfms.124.477 ◽

2004 ◽

Vol 124 (6) ◽

pp. 477-482 ◽

Cited By ~ 5

Author(s):

Hoshiyuki Yamazaki ◽

Osamu Watanabe ◽

Yuichiro Yamashita ◽

Makoto Iwai ◽

Yoshitaka Suzuki ◽

...

Keyword(s):

Magnetic Field ◽

Cylindrical Waveguide ◽

Field Region ◽

Cyclotron Instability ◽

Magnetic Field Region ◽

Slow Cyclotron ◽

Low Magnetic Field

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Field Dependence of Magnetic Birefringence of Magnetic Fluid in Low-Magnetic-Field Region

Journal of the Physical Society of Japan ◽

10.1143/jpsj.59.3077 ◽

1990 ◽

Vol 59 (9) ◽

pp. 3077-3080 ◽

Cited By ~ 14

Author(s):

Susamu Taketomi ◽

Nobuyuki Inaba ◽

Hiromasa Takahashi ◽

Hideki Miyajima

Keyword(s):

Magnetic Field ◽

Field Dependence ◽

Magnetic Fluid ◽

Field Region ◽

Magnetic Birefringence ◽

Magnetic Field Region ◽

Low Magnetic Field

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EPR Spectrometer for the Study of Spin Lattice Relaxation in the Low Magnetic Field Region

Review of Scientific Instruments ◽

10.1063/1.1683689 ◽

1968 ◽

Vol 39 (9) ◽

pp. 1385-1386 ◽

Cited By ~ 2

Author(s):

E. C. Douglas ◽

D. A. Davids

Keyword(s):

Magnetic Field ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

Field Region ◽

Spin Lattice ◽

Magnetic Field Region ◽

Low Magnetic Field

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Micro-patterned NiFeMo Magnetoimpedance Multilayer for Magnetic Sensor Application

MRS Proceedings ◽

10.1557/proc-0906-hh01-09 ◽

2005 ◽

Vol 906 ◽

Author(s):

Duhyun Lee ◽

G.H. Jeong ◽

J.H. Kim ◽

Y.S. Kim ◽

S.J. Suh

Keyword(s):

Magnetic Field ◽

Thin Film ◽

Sandwich Structure ◽

Amorphous Ribbon ◽

Anisotropy Field ◽

Impedance Change ◽

Field Region ◽

Soft Ferromagnetic ◽

Magnetic Field Region ◽

Lift Off

AbstractAs an alternative to the magnetoimpedance (MI) devices made from amorphous ribbon or wire, this study proposed a thin film type MI device composed with Ag conductive core and soft ferromagnetic NiFeMo sandwich layers. Obtained optimum sandwich structure was Ta 5 nm/ NiFeMo 300 nm/ Ta 5 nm/ Ag 900 nm/ Ta 5 nm/ NiFeMo 300 nm/ Ta 5 nm, and the width of Ag as 20 µm and the width of NiFeMo as 100 µm. It was patterned by using photolithography and lift-off process. The sandwich structure showed the maximum MI ratio about 40% at the 15 MHz. The impedance change was linear and nearly reversible at the external magnetic field region below the anisotropy field.

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A Miniature Fluxgate Sensor with CMOS Interface Circuitry

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.483.164 ◽

2011 ◽

Vol 483 ◽

pp. 164-168

Author(s):

Wei Ping Chen ◽

Chang Chun Dong ◽

Xiao Wei Liu ◽

Zhi Ping Zhou

Keyword(s):

Output Voltage ◽

Second Harmonic ◽

Design Method ◽

Total Power ◽

Cmos Process ◽

Harmonic Detection ◽

Interface Circuit ◽

Fluxgate Sensor ◽

Total Power Consumption ◽

Interface Circuitry

In this paper, the writers reported on a fluxgate sensor and a CMOS-ASIC for sensor supply. The design method and principle of the interface circuit of the fluxgate sensor was also presented, which was based on second-harmonic detection of the output voltage. This circuit has been simulated and realized through 0.5μm DPDM P-sub CMOS Process. The size of this circuit is 2mm×2mm. The circuit exhibited a sensitivity of 16.5mV/μT and a linear range of ±90μT. With 5V of voltage supply, the total power consumption of the circuit was as low as 35 mW.

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Soliton locking phenomenon over finite magnetic field region in the monoaxial chiral magnet CrNb 3 S 6

Applied Physics Letters ◽

10.1063/5.0028910 ◽

2020 ◽

Vol 117 (23) ◽

pp. 232403

Author(s):

M. Ohkuma ◽

M. Mito ◽

Y. Kousaka ◽

T. Tajiri ◽

J. Akimitsu ◽

...

Keyword(s):

Magnetic Field ◽

Field Region ◽

Magnetic Field Region

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Experimental Study on Piezoresistivity and Magnetoresistivity of Magnetorheological Elastomers

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.37-38.444 ◽

2010 ◽

Vol 37-38 ◽

pp. 444-447 ◽

Cited By ~ 2

Author(s):

Wei Qiang Ye ◽

Yi Min Deng ◽

Wei Wang

Keyword(s):

Smart Materials ◽

Magnetic Field Intensity ◽

Nickel Content ◽

Applied Pressure ◽

Hysteresis Phenomenon ◽

Magnetorheological Elastomer ◽

Research Focus ◽

Magnetorheological Elastomers ◽

New Type ◽

Low Magnetic Field

As a new type of smart materials, magnetorheological elastomer (MRE) has become a hot current research focus. However, the piezoresistivity and magnetoresistivity of MRE have not been well studied. In this paper, this was done by using a test rig developed by the authors. The experimental results showed that the conductivity of the MRE responded sensitively to the applied pressure, and a linear relationship between the resistivity of the MRE and the applied pressure can be observed within a certain range. Besides, the sensitivity of piezoresistivity is different among different ratios of metal content, and it becomes more obvious when using the nickel content. And, the magnetoresistivity of MRE is not obvious in a range of low magnetic field intensity, and there is also no hysteresis phenomenon about magnetoresistivity.

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