A pulse-modulated nonequilibrium atmospheric-pressure microwave argon plasma discharge preionized by a kilohertz excited plasma jet

2012 ◽  
Vol 100 (17) ◽  
pp. 174101 ◽  
Author(s):  
Shou-Zhe Li ◽  
Mao-Chun Xu ◽  
Xin Zhang ◽  
Jialiang Zhang
Keyword(s):  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Plasma Discharge

Influence of Additive Gas on Electrical and Optical Characteristics of Non-equilibrium Atmospheric Pressure Argon Plasma Jet

2011 ◽  
Vol 13 (5) ◽  
pp. 575-582 ◽  
Author(s):  
Xiaomeng Fei ◽  
Shin-ichi Kuroda ◽  
Yuki Kondo ◽  
Tamio Mori ◽  
Katsuhiko Hosoi
Keyword(s):  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Optical Characteristics ◽  
Argon Plasma Jet ◽  
Non Equilibrium

The Research of Atmospheric Pressure Cold Plasma Jet Generated by Auto-Excited-Pulsed DC Discharge

2014 ◽  
Vol 989-994 ◽  
pp. 1200-1203
Author(s):  
Ye Lin Hu ◽  
Qiu Wang ◽  
Zhao Quan Chen
Keyword(s):  
Power Supply ◽  
Discharge Current ◽  
Atmospheric Pressure ◽  
Cold Plasma ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Pulse Frequency ◽  
Dc Discharge ◽  
Pulsed Dc ◽  
Piezoelectric Ceramic Transformer

In order to obtain stable cold plasma jet under atmospheric pressure condition, we designed a high-voltage DC power supply based on the principle of multilayer piezoelectric ceramic transformer (MPT). At the same time, we developed a cold plasma jet device that its shape is similar to the gun structure. The total weight of device, including the power supply and the generator, is less than 500 g. In the experiments of argon plasma under atmospheric pressure, current–voltage measurements show that the discharge actually appears periodically pulsed with a frequency of about 30 kHz. The discharge current has a pulse-width that is about 100 ns, while its peak value reaches about 32 mA. The maximum length of the plasma is about 3 cm. The further study showed that the discharge current pulse frequency is determined by the ion drift mechanism.

Optical Property of The Atmospheric Pressure Argon Plasma Jet Generated by Three Types of Electrodes

2018 ◽  
Vol 39 (4) ◽  
pp. 547-554
Author(s):  
唐蕾 TANG Lei ◽  
王永杰 WANG Yong-jie ◽  
袁春琪 YUAN Chun-qi ◽  
尹增谦 YIN Zeng-qian
Keyword(s):  
Optical Property ◽  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Argon Plasma Jet

Atmospheric pressure argon plasma jet using a cylindrical piezoelectric transformer

2009 ◽  
Vol 95 (21) ◽  
pp. 211501 ◽  
Author(s):  
Hyun Kim ◽  
Albrecht Brockhaus ◽  
Jürgen Engemann
Keyword(s):  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Piezoelectric Transformer ◽  
Argon Plasma Jet

Development and Characterization of a Portable Atmospheric-Pressure Argon Plasma Jet for Sterilization

2015 ◽  
Author(s):  
Zhi-Hua Lin ◽  
Jong-Shinn Wu ◽  
Chen-Yon Tobias Tschang ◽  
Chi-Feng Su ◽  
Tuoh Wu ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Gas Temperature ◽  
E Coli ◽  
Bacteria Inactivation ◽  
Argon Plasma Jet ◽  
Absorption Power

In this study, we would like to develop a portable round argon atmospheric-pressure plasma jet (APPJ) which can be applied for general use of bacteria inactivation. The APPJ was characterized electrically and optically, which include measurements of absorption power, gas temperature and optical properties of plasma generated species. Measured OH* number density at 5 mm downstream was estimated to be 5.8 × 1015 cm−3 and the electron density and electron temperature were estimated to be 2.4 × 1015 cm−3 and 0.34 eV, respectively, in the discharge region. This APPJ was demonstrated to effectively inactivate E. coli within seconds of treatment, which shows its great potential in the future use of general bacteria inactivation and sterilization.

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