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Title
Japanese: 
English:Development of Ultrasonic Pulsed Plasma Jet Source for Remote Surface Treatment 
Author
Japanese: 太田 高志, 小笠原 大介, 岩井 貴弘, 宮原 秀一, 沖野 晃俊.  
English: Takashi Ohta, Daisuke Ogasawara, Takahiro Iwai, Hidekazu Miyahara, Akitoshi Okino.  
Language English 
Journal/Book name
Japanese: 
English:Applied Sciences 
Volume, Number, Page Vol. 13    No. 1    444
Published date Dec. 29, 2022 
Publisher
Japanese: 
English:MDPI 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
File
Official URL https://www.mdpi.com/2076-3417/13/1/444
 
DOI https://doi.org/10.3390/app13010444
Abstract We have developed a supersonic pulsed plasma jet device capable of long-distance and high-speed processing, and investigated its basic characteristics for surface treatment applications, mainly in the material and medical fields. The developed apparatus is equipped with a mechanism to transport active species in the plasma to the object to be treated by jetting the generated high-density plasma outward with supersonic pulse jets, which allows the gas flow velocity to increase significantly during pulse jetting compared with plasma generation. This enables the active species in the plasma to reach the treatment target before deactivation, thereby realizing surface treatment at a distance. Measurements using the Schlieren method revealed that the velocity of the jet flow reached Mach 1.7.

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