Load Matching for Giant Magnetoimpedance Sensor in Coaxial Configuration

2019 ◽  
Vol 826 ◽  
pp. 19-24
Author(s):  
Sergei V. Shcherbinin ◽  
Stanislav O. Volchkov ◽  
Anna A. Chlenova ◽  
Galina V. Kurlyandskaya
Keyword(s):  
Magnetic Field ◽  
High Sensitivity ◽  
Coaxial Cable ◽  
Amorphous Wire ◽  
Giant Magnetoimpedance ◽  
Maximum Slope ◽  
Load Matching ◽  
Field Displacement ◽  
Central Conductor ◽  
Field Sensor

Operation on the principle of the giant magnetoimpedace (GMI) magnetic field sensor was designed and tested for the case of CoFeSiB amorphous wire of 6 mm length. We considered magnetic field displacement of the order of 10 Oe. Piece of amorphous wire was placed as a central conductor of a coaxial cable. The maximum slope of the sensor GMI characteristic was observed at the terminator resistance RT = 50 Ohm, while the maximum of the GMI ratio variation was observed in the not “matched” (RT = 75 Ohm) but closer to the “short” mode. Amorphous wire placed as a central conductor of a coaxial cable serves as a sensitive element with high sensitivity with respect to applied field making possible to use a simple design with a miniature coil for magnetic field biasing.

High sensitivity side-hole fiber magnetic field sensor based on surface plasmon resonance

2016 ◽  
Vol 14 (11) ◽  
pp. 110603-110606 ◽  
Author(s):  
Sijun Weng Sijun Weng ◽  
Li Pei Li Pei ◽  
Jianshuai Wang Jianshuai Wang ◽  
Tigang Ning Tigang Ning ◽  
and Jing Li and Jing Li
Keyword(s):  
Magnetic Field ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
High Sensitivity ◽  
Magnetic Field Sensor ◽  
Side Hole ◽  
Field Sensor

scholarly journals Magnetic Communication Using High-Sensitivity Magnetic Field Detectors

Sensors ◽  
2019 ◽  
Vol 19 (15) ◽  
pp. 3415 ◽  
Author(s):  
Maurice Hott ◽  
Peter A. Hoeher ◽  
Sebastian F. Reinecke
Keyword(s):  
Magnetic Field ◽  
Mobile Applications ◽  
Data Communication ◽  
High Sensitivity ◽  
Magnetic Data ◽  
Receiver Coil ◽  
Magnetic Field Sensors ◽  
Resistive Sensor ◽  
Field Sensor ◽  
Multiple Detectors

In this article, an innovative approach for magnetic data communication is presented. For this purpose, the receiver coil of a conventional magneto-inductive communication system is replaced by a high-sensitivity wideband magnetic field sensor. The results show decisive advantages offered by sensitive magnetic field sensors, including a higher communication range for small receiver units. This approach supports numerous mobile applications where receiver size is limited, possibly in conjunction with multiple detectors. Numerical results are supported by a prototype implementation employing an anisotropic magneto-resistive sensor.

High-Sensitivity Wideband Magnetic Field Sensor Using Nonlinear Resonance Magnetoelectric Effect

2014 ◽  
Vol 14 (7) ◽  
pp. 2252-2256 ◽  
Author(s):  
Yuri K. Fetisov ◽  
Dmitri A. Burdin ◽  
Dmitri V. Chashin ◽  
Nikolai A. Ekonomov
Keyword(s):  
Magnetic Field ◽  
Magnetoelectric Effect ◽  
Nonlinear Resonance ◽  
High Sensitivity ◽  
Magnetic Field Sensor ◽  
Field Sensor

High sensitivity magnetic field sensor

2000 ◽  
Vol 85 (1-3) ◽  
pp. 202-208 ◽  
Author(s):  
G Vértesy ◽  
A Gasparics ◽  
J Szöllősy
Keyword(s):  
Magnetic Field ◽  
High Sensitivity ◽  
Magnetic Field Sensor ◽  
Field Sensor

scholarly journals Temperature and Magnetism Sensitivity of D-type Fiber Grating Filled with Magnetic Fluid in THz Band

2021 ◽  
Author(s):  
Shuo Liu ◽  
Xinyu Han ◽  
Jiaxin Zhang ◽  
Yuanwei Li ◽  
Xiaolong Dong ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Sensitivity ◽  
Magnetic Field Sensor ◽  
Fiber Grating ◽  
Sensitivity Measurement ◽  
Absolute Deviation ◽  
Terahertz Band ◽  
Field Sensitivity ◽  
Field Sensor ◽  
Type Fiber

Abstract A terahertz band temperature and magnetic field sensor based on a magneto-fluid-filled D-type microstructure grating is designed. The high sensitivity measurement of temperature and magnetic field is realized by optimizing the structure. The highest temperature sensitivity is 233.88 pm/°C, and the highest magnetic field sensitivity is up to 214.802 pm/mT. When the overall structure size of the sensor was changed by ±0.1 %, the maximal absolute deviation of temperature or magnetic field sensor are 0.018 pm/℃ and 0.03 pm/Oe. At the same time, the dual-parameter demodulation matrix is used to effectively overcome the crosstalk problem.

Micro-structured optical fiber magnetic field sensor based on magnetic fluid filling

2019 ◽  
Vol 33 (31) ◽  
pp. 1950380
Author(s):  
Jie Wang ◽  
Zhen Zhang ◽  
Shuguang Li ◽  
Shun Wang
Keyword(s):  
Magnetic Field ◽  
Magnetic Fluid ◽  
High Sensitivity ◽  
Magnetic Field Sensor ◽  
The Finite Element Method ◽  
Average Sensitivity ◽  
Magnetic Field Sensors ◽  
Hole Radius ◽  
Field Sensor ◽  
Air Hole

A novel micro-structured fiber magnetic field sensor based on magnetic fluid (MF) filling is proposed. The air hole radius in the cladding of fiber is reduced from inner layer to outer layer, and the numerical analysis is performed by the finite element method (FEM). For the [Formula: see text]-pol mode, the proposed sensor has an average sensitivity of 960.61 pm/Oe, and for the [Formula: see text]-pol mode, the average sensitivity can reach 884.85 pm/Oe. The sensor has the advantages of small size and high sensitivity and is competitive in magnetic field sensors.

Sign in / Sign up

Export Citation Format

Share Document