Metrological investigation of electrostatic field intensity meters

1997 ◽  
Vol 40 (4) ◽  
pp. 349-356
Author(s):  
V. I. Tokatly ◽  
V. A. Tishchenko ◽  
V. I. Luk'yanov
Keyword(s):  
Field Intensity ◽  
Electrostatic Field ◽  
Metrological Investigation

Improving electrospinning process by numerical analysis of 3-D computer models

2019 ◽  
Vol 38 (4) ◽  
pp. 1098-1110
Author(s):  
Anna Firych-Nowacka ◽  
Krzysztof Smolka ◽  
Sławomir Wiak
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Field Intensity ◽  
Electrostatic Field ◽  
Electric Field Intensity ◽  
Computer Models ◽  
Electrospinning Process ◽  
Strength Analysis ◽  
Original Solution ◽  
Content Type

Purpose Electrospinning is a method of the polymer super thin fibres formation by the electrostatic field. The distribution of electrostatic field affects the effectiveness of the electrospinning. Design/methodology/approach This paper presents various computer models that can improve the electrospinning process. The possibilities of modelling the electrostatic field in the design of electrospinning equipment are presented. Findings In the research part, the one focussed on finding a cylinder-shaped collector structure to limit the adverse effect of an uneven distribution of the electric field intensity on the collector. Originality/value The paper concerns the improvement of the electrospinning process with the use of electrostatic field modelling. In the first part, several possible applications of electrostatic models have been indicated, thanks to which the efficiency of the process has been improved. The original solution of the collector geometry was presented, which according to the authors, in comparison with previous models, gives the most promising results. In this solution, it was possible to obtain an even distribution of the electric field intensity while removing the unfavourable effect of the field strength increase on the outer edges of the collector. The most important aspect in this paper is electric field strength analysis.

scholarly journals Field Optimization and Electrostatic Stress Reduction of Proposed Conductor Scheme for Pliable Gas-Insulated Transmission Lines

2019 ◽  
Vol 9 (15) ◽  
pp. 2988 ◽  
Author(s):  
Muhammad Junaid Alvi ◽  
Tahir Izhar ◽  
Asif Ali Qaiser ◽  
Hafiz Shafqat Kharal ◽  
Adnan Safdar
Keyword(s):  
Field Intensity ◽  
Electrostatic Field ◽  
Stress Reduction ◽  
Transmission Lines ◽  
Dielectric Breakdown ◽  
Experimental Investigations ◽  
Optimized Design ◽  
Potential Candidate ◽  
Semiconducting Film ◽  
Critical Consideration

The implementation of stranded conductors in flexible gas-insulated transmission lines (FGILs) requires field intensity minimization as well as field irregularity suppression in order to avoid dielectric breakdown. Moreover, the interdependence of enclosure and conductor sizes of FGILs regarding electrostatic aspects necessitate critical consideration of their dimensional specifications. In this research, geometric and electrostatic field optimization for FGILs regarding stranded conductors is performed. In addition, the effect of conductor irregularity on field dispersion is analyzed, and a semiconducting film (SCF)-coated stranded conductor is proposed as a potential candidate for FGILs. Considering the performed optimized design, an 11 kV scaled-down model of a 132-kV FGIL was also fabricated in order to practically analyze its electrostatic and dielectric performances regarding simple and SCF-coated stranded conductors. Simulation and experimental investigations revealed that the SCF-coated stranded conductor significantly minimized the field irregularity of the FGIL along with improving in its dielectric breakdown characteristics.

Acceleration characteristics of laser ablation Cu plasma in the electrostatic field

2021 ◽  
Vol 93 (2) ◽  
pp. 20802
Author(s):  
Buren Duan ◽  
Haonan Zhang ◽  
Lizhi Wu ◽  
Zuohao Hua ◽  
Zijing Bao ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Electric Field ◽  
Field Intensity ◽  
Electrostatic Field ◽  
High Speed ◽  
Electric Field Intensity ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Iccd Camera ◽  
Cross Sectional

As a new concept of space propulsion system, laser-ablation propulsion has attracted more and more attention due to its characteristics of low power consumption, high specific impulse, variable and controllable thrust. With an aim to further raise up the movement velocity of plasma, we combine the laser with high-voltage electrostatic field to accelerate the Cu plasma induced by laser ablation. To demonstrate the acceleration characteristics of plasma under different electric field intensity, the plasma conductivity, plasma shockwave intensity and plasma plume movement process were tested using parallel electrode plate device, self-made torsion pendulum impulse test bench and high-speed ICCD camera. The results showed that the conductive current and impulse formed by the plasma obviously increased under the applied electric field. The images captured by high-speed ICCD camera showed the plasma cross-sectional area was 0.194 mm2 at 900 ns and 0.217 mm2 at 1600 ns when the electric field intensity was 0 V/mm. With the electric field intensity increased to 30 V/mm, the plasma cross-sectional area elevated to 0.280 mm2 at 900 ns and 0.288 mm2 at 1600 ns. The acquisitions prove that the idea of this paper is feasible and favorable, which provide a theoretical basis for the combination of laser ablation propulsion and electric field.

scholarly journals Calculation Method of Electrostatic Field Intensity in Insulation of Multicore Cables

10.12737/211 ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 39-43
Author(s):  
Рудаков ◽  
S. Rudakov ◽  
Богомолов ◽  
A. Bogomolov
Keyword(s):  
Measurement Error ◽  
Field Intensity ◽  
Electrostatic Field ◽  
Fire Safety ◽  
Calculation Method ◽  
Intensity Measurement ◽  
Partial Penetration

Calculation method of electrostatic field intensity penetrating into insulation of cables’ strands, allowing consider partial penetration of this field into insulation of cable’s separate elements, and, therefore, to lower the field intensity measurement error, arising at such influence of fields is stated. It allows predict fire safety of multicore cables.

On the calculation of the electrostatic field intensity of an oscillating uncharged drop

2016 ◽  
Vol 52 (2) ◽  
pp. 162-169
Author(s):  
S. O. Shiryaeva ◽  
A. I. Grigor’ev ◽  
N. Yu. Kolbneva
Keyword(s):  
Field Intensity ◽  
Electrostatic Field

The Effect of High-Voltage Electrostatic Field on the Water Performance

2012 ◽  
Vol 441 ◽  
pp. 695-698
Author(s):  
Qing Wang ◽  
Jie Min ◽  
Jia Tian
Keyword(s):  
Electric Field ◽  
Physical Properties ◽  
Field Intensity ◽  
High Voltage ◽  
Electrostatic Field ◽  
Electric Field Intensity ◽  
Treatment Time ◽  
Swelling Ratio ◽  
Wool Fibers ◽  
Effect Of Treatment

Water treated by external electric field with different field intensity. The absorbency of water, the changes of dyes solubility, the effect of treatment time and the changes of wool swelling were studied. The results showed that electric field treatments can alter the water physical properties to various degrees. The absorbance of water increased with increasing electric field intensity. The swelling ratio indicated the ability of solvent to penetrate the wool fibers and to swell them.

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