Experimental study on the movement of non-spherical particles in nonuniform electric field

2017 ◽  
Vol 24 (2) ◽  
pp. 861-868 ◽  
Author(s):  
Tatchawin Sangsri ◽  
Boonchai Techaumnat
Keyword(s):  
Experimental Study ◽  
Electric Field ◽  
Nonuniform Electric Field ◽  
Spherical Particles

scholarly journals Spectroscopic analysis of high electric field enhanced ionization in laser filaments in air for corona guiding

2016 ◽  
Vol 4 ◽  
Author(s):  
Yingxia Wei ◽  
Yaoxiang Liu ◽  
Tie-Jun Wang ◽  
Na Chen ◽  
Jingjing Ju ◽  
...  
Keyword(s):  
Experimental Study ◽  
Femtosecond Laser ◽  
Electric Field ◽  
Corona Discharge ◽  
High Voltage ◽  
Fluorescence Spectra ◽  
Spectroscopic Analysis ◽  
Laser Pulses ◽  
Spectroscopic Measurement ◽  
High Electric Field

We report on a systematic experimental study on the fluorescence spectra produced from a femtosecond laser filament in air under a high electric field. The electric field alone was strong enough to create corona discharge (CD). Fluorescence spectra from neutral and ionic air molecules were measured and compared with pure high-voltage CD and pure laser filamentation (FIL). Among them, high electric field assisted laser FIL produced nitrogen fluorescence more efficiently than either pure CD or pure FIL processes. The nonlinear enhancement of fluorescence from the interaction of the laser filament and corona discharging electric field resulted in a more efficient ionization along the laser filament zone, which was confirmed by the spectroscopic measurement of both ionization-induced fluorescence and plasma-scattered 800 nm laser pulses. This is believed to be the key precursor process for filament-guided discharge.

Breakdown of gas gaps in a nonuniform electric field at a subnanosecond voltage pulse rise time

2013 ◽  
Vol 58 (3) ◽  
pp. 370-374 ◽  
Author(s):  
A. M. Boichenko ◽  
V. F. Tarasenko ◽  
E. Kh. Baksht ◽  
A. G. Burachenko ◽  
M. V. Erofeev ◽  
...  
Keyword(s):  
Electric Field ◽  
Rise Time ◽  
Voltage Pulse ◽  
Nonuniform Electric Field ◽  
Pulse Rise Time

Electrostatic Dispensing of Dry Dielectric Materials

2001 ◽  
Vol 700 ◽  
Author(s):  
Malinda M. Tupper ◽  
Marjorie E. Chopinaud ◽  
Takamichi Ogawa ◽  
Michael J. Cima
Keyword(s):  
Electric Field ◽  
Field Intensity ◽  
Electric Field Intensity ◽  
Dielectric Materials ◽  
Nonuniform Electric Field ◽  
Sodium Fluorescein ◽  
Silica Spheres ◽  
Electrode Geometry ◽  
Wide Range ◽  
Silica Beads

AbstractDispensing micron-scale dielectric materials can be achieved through the use of dielectrophoresis. Electrodes are designed to create a nonuniform electric field. This method is expected to be applicable for transfer of a wide range of dielectric powders as well as small, shaped components. Small, 150 μm diameter silica spheres, as well as sodium fluorescein powder have been dispensed by this method. Selecting the appropriate electrode geometry and electric field intensity controls the amount collected. As little as 1.0 μg of sodium fluorescein powder, and as much as 16 mg of silica beads have been collected, and repeatability within 10 % of the total amount dispensed has been achieved.

scholarly journals Formation of single charged drops from a dielectric liquid jet in a nonuniform electric field.

1990 ◽  
Vol 16 (4) ◽  
pp. 700-705 ◽  
Author(s):  
Takashi Hibiki ◽  
Manabu Yamaguchi ◽  
Takashi Katayama
Keyword(s):  
Electric Field ◽  
Nonuniform Electric Field ◽  
Dielectric Liquid ◽  
Liquid Jet
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