Time-averaged electron number density measurement of a one atmosphere uniform glow discharge plasma (OAUDGP) by absorption of microwave radiation

2003 ◽  
Author(s):  
M. Howlader ◽  
Yunqiang Yang ◽  
J. Reece Roth
Keyword(s):  
Glow Discharge ◽  
Microwave Radiation ◽  
Electron Number Density ◽  
Discharge Plasma ◽  
Density Measurement ◽  
Glow Discharge Plasma ◽  
Number Density ◽  
Electron Number

scholarly journals Comparison of the Plasma Temperature and Electron Number Density of Pulsed Electrolyte Cathode Atmospheric Pressure Discharge and Direct Current Solution Cathode Glow Discharge

2018 ◽  
Author(s):  
Jinmei Wang ◽  
Shiyu Li ◽  
Peichao Zheng ◽  
Yanying Chen
Keyword(s):  
Glow Discharge ◽  
Atmospheric Pressure ◽  
Electron Number Density ◽  
Number Density ◽  
Electron Number ◽  
Discharge System ◽  
Flowing Liquid ◽  
Pressure Discharge ◽  
Atmospheric Pressure Discharge ◽  
Electrolyte Cathode

A novel plasma source of pulsed electrolyte cathode atmospheric pressure discharge (pulsed-ECAD) driven by an alternating current (AC) power supply coupled with a high voltage diode was generated, and the discharge was generated in the open-to-air atmosphere between a metal electrode and a small-sized flowing liquid cathode. The spatial distribution of plasma temperatures (excitation, vibrational and rotational) of the pulsed-ECAD were investigated. The electron excitation temperature of H Texc(H), vibrational temperature of N2 Tvib(N2), and rotational temperature of OH Trot(OH) were measured as 4900±36-6800±108 K, 4600±86-5800±100 K and 1050±20-1140±10 K, respectively. Meanwhile, the temperature characteristics of dc solution cathode glow discharge (dc-SCGD) were also studied for comparison with pulsed-ECAD. The effects of operating parameters, including discharge voltage and discharge frequency, on the plasma temperatures were investigated. The electron number density determined in the discharge system and dc-SCGD were within the range (3.8–18.9) ×1014 cm-3 and 2.6×1014-17.2×1014 cm-3, respectively.

High-temperature flow field’s electron number density measurement by two-wavelength moiré tomography

2016 ◽  
Vol 41 (7) ◽  
pp. 1640 ◽  
Author(s):  
Yun-yun Chen ◽  
Yang Song ◽  
Fang Gu ◽  
Shao-feng Shao ◽  
Ying-ying Zhang
Keyword(s):  
High Temperature ◽  
Electron Number Density ◽  
Density Measurement ◽  
Number Density ◽  
Electron Number
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