CAJ | 학술논문

采用电压电流波形和Lissajous图测量及发光图像拍摄等诊断手段研究了大气压大面积空气中水电极结构介质阻挡放电的演变规律，并由发射光谱测量了氮分子第二正带系谱线强度随外加电压和电源频率的变化规律，利用测得的发射光谱数据计算分子振动温度等参数。结果表明：随着外加电压的升高，放电由局部点状逐渐演变为大面积絮状混合形式；其分子振动温度的变化范围为2547~3783 K，且电离系数的升高和单位时间内放电次数的增加能有效促使放电功率和振动温度的增加。
채용전압전류파형화Lissajous도측량급발광도상박섭등진단수단연구료대기압대면적공기중수전겁결구개질조당방전적연변규률，병유발사광보측량료담분자제이정대계보선강도수외가전압화전원빈솔적변화규률，이용측득적발사광보수거계산분자진동온도등삼수。결과표명：수착외가전압적승고，방전유국부점상축점연변위대면적서상혼합형식；기분자진동온도적변화범위위2547~3783 K，차전리계수적승고화단위시간내방전차수적증가능유효촉사방전공솔화진동온도적증가。
The evolution law of large-area dielectric barrier discharge of water electrode in air at atmo-spheric pressure was studied by measuring voltage and current waveforms and Lissajous figures and tak-ing illuminate images. The change of spectral line intensity of second positive band system of N2 with the applied voltage and frequency was measured by emission spectrum, and the molecular vibrational tem-perature was calculated from the measured emission spectral data. The results show that with the increase of applied voltage, the discharge form gradually evolves from local point form to large area flocculent mixed form, and the molecular vibrational temperature is in the range of 2 547 K to 3 783 K. Moreover, the increase of ionization coefficient and discharge times per unit time can promote the increase of dis-charge power and vibrational temperature.