Atmospheric pressure argon plasma jet using a cylindrical piezoelectric transformer

被引：44

作者：

Kim, Hyun ^{[1
]}

Brockhaus, Albrecht ^{[1
]}

Engemann, Juergen ^{[1
]}

机构：

[1] Univ Wuppertal, Microstruct Res Ctr Fmt, D-42119 Wuppertal, Germany

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 21期

关键词：

argon; discharges (electric); piezoelectric devices; plasma jets; transformers; DISCHARGE;

D O I：

10.1063/1.3267142

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A low-voltage atmospheric pressure nonthermal argon plasma jet using a circular piezoelectric transducer is proposed. An Ar plasma flame is generated at an input voltage of 87 V. The consumed power is 2 W. The electrical and optical properties of the jet are analyzed. In particular, the transient Ar discharge ignition and evolution including the so-called plasma bullet phenomenon is examined temporally resolved with the aid of a fast camera. It is found that four discharge phases can be identified, designated as ignition, extension, self-propagation, and attenuation. The plasma bullet is launched while the electric field in the discharge space is decreasing. The average bullet velocity is 23 km/s.

引用

页数：3

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