Influence of Magnetic Flux Concentrator on the Efficiency of Iron Ore Dressing

2003 ◽  
Vol 39 (3) ◽  
pp. 297-303
Author(s):  
E. N. Koren'kov ◽  
V. A. Uskov ◽  
A. V. Komissarov
Keyword(s):  
Magnetic Flux ◽  
Iron Ore ◽  
Flux Concentrator ◽  
Ore Dressing

Significant power enhancement of magneto-mechano-electric generators by magnetic flux concentration

2020 ◽  
Vol 13 (11) ◽  
pp. 4238-4248 ◽  
Author(s):  
Hyunseok Song ◽  
Deepak Rajaram Patil ◽  
Woon-Ha Yoon ◽  
Kwang-Ho Kim ◽  
Cheol Choi ◽  
...  
Keyword(s):  
Sensor Networks ◽  
Internet Of Things ◽  
Magnetic Flux ◽  
Magnetic Noise ◽  
Significant Power ◽  
Power Enhancement ◽  
Flux Concentration ◽  
Electric Generators ◽  
Flux Concentrator

A magneto-mechano-electric (MME) generator comprising a magnetoelectric (ME) composite and magnetic flux concentrator (MFC) can effectively harvest the tiny magnetic noise to power the autonomous internet of things (IoT) sensor networks.

scholarly journals Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy

Sensors ◽  
2019 ◽  
Vol 19 (23) ◽  
pp. 5105
Author(s):  
Chen ◽  
Lin ◽  
Chang ◽  
Cheng ◽  
Chen ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Electromagnetic Induction ◽  
Bronchial Tree ◽  
Silicon Steel ◽  
Induced Voltage ◽  
High Permeability ◽  
Tree Model ◽  
Steel Sheets ◽  
Pattern Change ◽  
Flux Concentrator

In this paper, we demonstrate an innovative electromagnetic targeting system utilizing a passive magnetic-flux-concentrator for tracking endobronchoscope used in the diagnosis process of lung cancer tumors/lesions. The system consists of a magnetic-flux emitting coil, a magnetic-flux receiving electromagnets-array, and high permeability silicon-steel sheets rolled as a collar (as the passive magnetic-flux-concentrator) fixed in a guide sheath of an endobronchoscope. The emitting coil is used to produce AC magnetic-flux, which is consequently received by the receiving electromagnets-array. Due to the electromagnetic-induction, a voltage is induced in the receiving electromagnets-array. When the endobronchoscope’s guide sheath (with the silicon-steel collar) travels between the emitting coil and the receiving electromagnets-arrays, the magnetic flux is concentrated by the silicon-steel collar and thereby the induced voltage is changed. Through analyzing the voltage–pattern change, the location of the silicon–steel collar with the guide sheath is targeted. For testing, a bronchial-tree model for training medical doctors and operators is used to test our system. According to experimental results, the system is successfully verified to be able to target the endobronchoscope in the bronchial-tree model. The targeting errors on the x-, y- and z-axes are 9 mm, 10 mm, and 5 mm, respectively.

Development and Application of Complex Flashing-Field Magnetic Cleaner

2014 ◽  
Vol 1073-1076 ◽  
pp. 2177-2188
Author(s):  
Wen Li Jiang ◽  
Yi Min Zhang ◽  
Guang Quan Liang ◽  
Xi Wen Xia
Keyword(s):  
Magnetic Field ◽  
Iron Ore ◽  
Magnetic System ◽  
Operating Cost ◽  
Reverse Flotation ◽  
Test Results ◽  
Iron Concentrate ◽  
Magnetite Ore ◽  
Ore Dressing

In order to enhance the quality of iron concentrate from magnetic separation, reverse-flotation technology is often applied in iron ore dressing plant. However, this technology has disadvantages in operating cost, energy consumption and environmental protection (Zhao Chunfu, Wu Jianghua &Wang Hui ,2005). Developing innovative equipment to process magnetite ore more-effectively is a way to get rid of these disadvantages of reverse flotation and improve the quality of iron concentrate. This paper describes the development of Complex Flashing-Field Magnetic Cleaner, a new kind of equipment based on the principle of combination of separation in magnetic field and separation in gravity field (Hao Shuhua & Jiang Wenli,2002). This innovative equipment possesses a tailor-made magnetic system and has the characteristics of a magnetic field which can strengthen the formation of magnetic agglomerations and the dispersion of gangue minerals to improve the quality of separation. The automatic control system developed specifically for this equipment can further increase the accuracy of separation and stabilize the process. Test results showed that this equipment is reliable in operation, economically beneficial and it has large potential of application.

Magnetic Flux Concentrator Using Gd-Ba-Cu-O Bulk Superconductors

2009 ◽  
Vol 19 (3) ◽  
pp. 2174-2177 ◽  
Author(s):  
T. Kiyoshi ◽  
S. Choi ◽  
S. Matsumoto ◽  
T. Asano ◽  
D. Uglietti
Keyword(s):  
Magnetic Flux ◽  
Bulk Superconductors ◽  
Flux Concentrator

Sensitive current sensor based on Fe73.5Cu1Nb3Si13.5B9/Pb(Zr,Ti)O3 composite with a tunable magnetic flux concentrator

2019 ◽  
Vol 90 (9) ◽  
pp. 096103
Author(s):  
Zhengyu Ou ◽  
Hai Zhou ◽  
Aichao Yang ◽  
Caijiang Lu ◽  
Renren Zhu ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Current Sensor ◽  
Flux Concentrator

scholarly journals Double-Gap Magnetic Flux Concentrator Design for High-Sensitivity Magnetic Tunnel Junction Sensors

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4475 ◽  
Author(s):  
Jiafei Hu ◽  
Minhui Ji ◽  
Weicheng Qiu ◽  
Long Pan ◽  
Peisen Li ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Tunnel Junction ◽  
High Performance ◽  
Three Dimensional ◽  
Magnetic Tunnel Junction ◽  
High Sensitivity ◽  
Element Model ◽  
Ion Milling ◽  
Field Amplification ◽  
Flux Concentrator

To improve the sensitivity of the magnetic tunnel junction(MTJ)sensor, a novel architecture for a double-gap magnetic flux concentrator (MFC) was studied theoretically and experimentally in this paper. The three-dimensional finite element model of magnetic flux was established to optimize the magnetic field amplification factor, with different gaps. The simulation results indicate that the sensitivity of an MTJ sensor with a double-gap MFC can be significantly better than that of a sensor with a traditional single-gap MFC, due to the fact that the magnetic magnification sharply increases with the decrease in effective gap width. Besides this, the half-bridge MTJ sensors with the double-gap MFC were fabricated using photolithography, ion milling, evaporation, and electroplating processes. Experimental results show that the sensitivity of the MTJ sensor increased by ten times compared to the sensor without the double-gap MFC, which underlines the theoretical predictions. Furthermore, there is no significant increase in the sensor noise. The work in this paper contributes to the development of high-performance MTJ sensors.

Modeling of a Magnetic Flux Concentrator

2004 ◽  
Author(s):  
Gregory A. Fischer ◽  
Alan S. Edelstein
Keyword(s):  
Magnetic Flux ◽  
Flux Concentrator
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