Detection of Pressure Waves Emitted From Plasma Jets With Fibered Optical Wave Microphone in Gas and Liquid Phases
Detection of Pressure Waves Emitted From Plasma Jets With Fibered Optical Wave Microphone in Gas and Liquid Phases
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DOI：
10.1109/tps.2016.2585659
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发表时间：
2016-07
影响因子：
1.5
通讯作者：
F. Mitsugi;S. Kusumegi;T. Kawasaki;T. Nakamiya;Y. Sonoda
中科院分区：
文献类型：
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作者：
F. Mitsugi;S. Kusumegi;T. Kawasaki;T. Nakamiya;Y. Sonoda
大气压等离子体射流辐照液体靶时，在一定的条件下，如电压频率、气体流量等，会产生一股从液面到底部的活性氧或氮自由基流，压力波可以被认为是与液体靶内流有关的力之一，因为我们成功地用光纤光波麦克风探测到了空气中等离子体射流产生的压力波。光纤式光波传声器是基于激光对相位物体的夫琅和费衍射原理工作的，与传统的光学方法相比，具有上级灵敏度。本文利用光纤式光波传声器在空气中测量等离子体射流产生压力波的频率特性。此外，还对蒸馏水内部压力波的检测进行了尝试。
Irradiation of atmospheric plasma jets to liquid targets induces a stream of reactive oxygen or nitrogen radicals from the liquid surface to the bottom under limited conditions, including frequency of applied voltage, gas flow rate, and so on. Pressure waves can be considered to be one of possible forces that concern with the stream inside liquid targets, because we succeeded to detect pressure waves generated by plasma jets in air with a fibered optical wave microphone. The fibered optical wave microphone works based on Fraunhofer diffraction of laser for phase objects, having superior sensitivity compared with other conventional optical methods for the detection of refractive index changes. In this paper, the fibered optical wave microphone measurement was done in air to investigate the frequency properties of the generation of pressure waves from plasma jets. In addition, the detection of pressure waves inside distilled water was attempted.