Theoretical analysis and design on optical fiber magneto-optic current sensing head

1991 ◽  
Author(s):  
Peng-Gang Zhang ◽  
Huafeng Zhao ◽  
Yanbiao Liao
Keyword(s):  
Theoretical Analysis ◽  
Optical Fiber ◽  
Current Sensing ◽  
Analysis And Design ◽  
Magneto Optic

scholarly journals Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic Stimulation

2021 ◽  
Vol 11 (4) ◽  
pp. 1960
Author(s):  
Naming Zhang ◽  
Ziang Wang ◽  
Jinhua Shi ◽  
Shuya Ning ◽  
Yukuo Zhang ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Transcranial Magnetic Stimulation ◽  
Theoretical Analysis ◽  
Numerical Simulations ◽  
Magnetic Stimulation ◽  
Influential Factors ◽  
Intersection Angle ◽  
Electromagnetic Field Distribution ◽  
Analysis And Design ◽  
Coil Structure

Previous research showed that pulsed functional magnetic stimulation can activate brain tissue with optimum intensity and frequency. Conventional stimulation coils are always set as a figure-8 type or Helmholtz. However, the magnetic fields generated by these coils are uniform around the target, and their magnetic stimulation performance still needs improvement. In this paper, a novel type of stimulation coil is proposed to shrink the irritative zone and strengthen the stimulation intensity. Furthermore, the electromagnetic field distribution is calculated and measured. Based on numerical simulations, the proposed coil is compared to traditional coil types. Moreover, the influential factors, such as the diameter and the intersection angle, are also analyzed. It was demonstrated that the proposed coil has a better performance in comparison with the figure-8 coil. Thus, this work suggests a new way to design stimulation coils for transcranial magnetic stimulation.

Theoretical Analysis of Sensitivity Enhancement by Graphene Usage in Optical Fiber Surface Plasmon Resonance Sensors

2019 ◽  
Vol 68 (5) ◽  
pp. 1554-1560 ◽  
Author(s):  
Arthur Aprigio de Melo ◽  
Talita Brito da Silva ◽  
Marcia Fernanda da Silva Santiago ◽  
Cleumar da Silva Moreira ◽  
Rossana Moreno Santa Cruz
Keyword(s):  
Surface Plasmon Resonance ◽  
Theoretical Analysis ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Fiber Surface ◽  
Sensitivity Enhancement ◽  
Surface Plasmon Resonance Sensors

scholarly journals Analysis and Design of a Hybrid Optical Fiber Refractometer for Large Dynamic Range Measurements

2020 ◽  
Vol 20 (10) ◽  
pp. 5260-5269
Author(s):  
Haris Apriyanto ◽  
Olivier D. Bernal ◽  
Michel Cattoen ◽  
Francoise Lizion ◽  
James H. Sharp ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Dynamic Range ◽  
Large Dynamic Range ◽  
Range Measurements ◽  
Analysis And Design

scholarly journals Series-Series/Series Compensated Inductive Power Transmission System with Symmetrical Half-Bridge Resonant Converter: Design, Analysis, and Experimental Assessment

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2268 ◽  
Author(s):  
Jianfeng Hong ◽  
Mingjie Guan ◽  
Zaifa Lin ◽  
Qiu Fang ◽  
Wei Wu ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Power Transmission ◽  
Low Frequency ◽  
Resonant Converter ◽  
Inductive Power Transfer ◽  
Leakage Inductance ◽  
Analysis And Design ◽  
Converter Design ◽  
Inductive Power Transmission ◽  
Inductive Power

In order to compensate the large leakage inductance and improve the power transmission capacity, capacitors are widely used in inductive power transfer (IPT) systems, which results in high voltage or current stresses in the resonant tanks and limits higher volt-ampere (VA) rating of the transfer power, especially in medium and low frequency applications. This paper presents a symmetrical half-bridge resonant converter (SHRC) for series-series/series compensated IPT systems with detailed analysis and design. It operates at a relatively low frequency of 12.5 kHz, suitable for IGBT applications. The theoretical analysis shows that, compared with full-bridge resonant converter (FRC) for IPT, the symmetrical half-bridge resonant converter achieves a higher efficiency. Simulation and a prototype of 1500 W power output were built to verify the theoretical analysis. The experimental results show that the power loss of SHRC is 39.7 W while that of FRC is 79.4 W, which is consistent with the theoretical analysis. The global efficiency of the IPT based on the proposed converter is 91.6%.

Theoretical analysis of a novel ultrasound generator on an optical fiber tip

2010 ◽  
Author(s):  
Nan Wu ◽  
Wenhui Wang ◽  
Ye Tian ◽  
Charles Guthy ◽  
Xingwei Wang
Keyword(s):  
Theoretical Analysis ◽  
Optical Fiber ◽  
Ultrasound Generator
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