Visualization of electrical discharge sound of the atmospheric pressure plasma with optical wave microphone on phenomenon clarification
用光波麦克风可视化大气压等离子体的放电声音以澄清现象
基本信息
- 批准号:23560510
- 负责人:
- 金额:$ 3.49万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2011
- 资助国家:日本
- 起止时间:2011 至 2013
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The novel method, which we call the "Optical Wave Microphone (OWM)" technique, is based on a Fraunhofer diffraction effect between sound wave and laser beam. This new method can realize high accuracy measurement of slight density change of atmosphere. In this work, coplanar dielectric barrier discharges in different gases was characterized via the OWM. The following results were obtained. (1) OWM picked up the ultrasonic wave, which condenser microphone could not detect, emitted from the discharge. (2) The change of the frequency components and intensity of discharge sound were investigated by the difference in atmosphere gas such as Air, Helium, Argon and Nitrogen. The intensity of discharge sound was increased as the molecular weight of atmosphere gas became large. (3) OWM could be applied for the visualization of sound field by Computerized Tomography (CT) method. Visualization of the two-dimensional sound field for the discharges showed quite different gas dependency.
这种新方法,我们称之为“光波麦克风(OWM)”技术,是基于声波和激光束之间的弗劳恩霍夫衍射效应。该方法可以实现对大气细微密度变化的高精度测量。在本研究中,我们用OWM对不同气体中的共面介质阻挡放电进行了表征。得到了以下结果:(1) OWM拾取了电容传声器无法探测到的从放电中发出的超声波。(2)研究了空气、氦气、氩气和氮气等大气气体对放电声频率组成和强度的影响。放电声强度随大气气体分子量的增大而增大。(3) OWM可用于计算机断层扫描(CT)声场可视化。放电的二维声场可视化显示了完全不同的气体依赖性。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
ACOUSTIC SPECTRA CHARACTERISTICS OF ATMOS- PHEREIC PRESSURE PLASMA USING OPTICAL WAVE MICRO- PHONE
光波麦克风大气压等离子体的声谱特性
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Toshiyuki Nakamiya;Fumiaki Mitsugi;Shota Suyama;Tomoaki Ikegami;Kenji Ebihara;Yoshito Sonoda;Yoichiro Iwasaki;Shin-ichi Aoqui;Henryka Danuta Stryczewska;Joanna Pawlat
- 通讯作者:Joanna Pawlat
ACOUSTIC SPECTRA CHARACTERISTICS OF ATMOSPHERIC PRESSURE PLASMA USING OPTICAL WAVE MICROPHONE
光波麦克风大气压等离子体的声谱特性
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Toshiyuki Nakamiya;Fumiaki Mitsugi;Shota Suyama;Tomoaki Ikegami;Kenji Ebihara;Yoshito Sonoda;Yoichiro Iwasaki;Shin-ichi Aoqui;Henryka Danuta Stryczewska;and Joanna Pawlat
- 通讯作者:and Joanna Pawlat
Optical wave microphone measurement for laser ablation of Copper in supercritical carbon dioxide
超临界二氧化碳中铜激光烧蚀的光波麦克风测量
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:本島邦行;松原雅昭;T.Nakamiya;T.Nakamiya;T.Nakamiya;F.Mitsugi
- 通讯作者:F.Mitsugi
Visualization of Electric Discharge Sound Field Using Optical Wave Microphone with Computerized Tomography Method
利用光波麦克风和计算机断层扫描方法可视化放电声场
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:本島邦行;松原雅昭;T.Nakamiya;T.Nakamiya;T.Nakamiya;F.Mitsugi;T.Nakamiya;Toshiyuki Nakamiya
- 通讯作者:Toshiyuki Nakamiya
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