CAJ | 학술논문

采用高速录像机和光谱仪，研究了在双水电极介质阻挡放电装置中首次得到的由长短交替的棒状放电结构组成的栅栏斑图。通过观察20μs曝光录像照片发现栅栏斑图由体放电和沿面放电组成。采用发射光谱法，利用N2第二正带系（C3Πu→B3Πg）的发射谱线和Ar Ⅰ（2P2→1S5）谱线的展宽，分别测量和比较了不同体放电和沿面放电不同位置处的分子振动温度和电子密度。结果发现：斑图中具有较强沿面放电的体放电比具有较弱沿面放电的体放电拥有较高的分子振动温度和电子密度；在沿面放电的方向上，沿面放电的分子振动温度和电子密度均逐渐降低。理论分析证明，壁电荷在狭缝内的非等量分布是影响栅栏斑图形成的主要因素。
채용고속록상궤화광보의，연구료재쌍수전겁개질조당방전장치중수차득도적유장단교체적봉상방전결구조성적책란반도。통과관찰20μs폭광록상조편발현책란반도유체방전화연면방전조성。채용발사광보법，이용N2제이정대계（C3Πu→B3Πg）적발사보선화Ar Ⅰ（2P2→1S5）보선적전관，분별측량화비교료불동체방전화연면방전불동위치처적분자진동온도화전자밀도。결과발현：반도중구유교강연면방전적체방전비구유교약연면방전적체방전옹유교고적분자진동온도화전자밀도；재연면방전적방향상，연면방전적분자진동온도화전자밀도균축점강저。이론분석증명，벽전하재협봉내적비등량분포시영향책란반도형성적주요인소。
The fence pattern that consists of volume discharges ( VDs ) and surface discharges ( SDs) is observed by using the dielectric barrier discharge device with two water electrodes. The VDs uniformly distribute along the slit, and SDs are perpendicular to the slit and own two kinds of intensity. The short-exposed photograph is obtained by a high speed video camera. The plasma pa-rameters of fence pattern are investigated by spectrograph. The emission spectra of the N2 second positive band( C3Πu→B3Πg ) is collected, and the molecule vibrational temperature is calculated by the emission intensities. Furthermore, the width of ArⅠ696. 5 nm is used to estimate the electron density. The results show that the volume discharges with strong surface discharges have higher mol-ecule vibrational temperature and higher electron density than those with less surface discharge. Be-sides, along the surface discharge direction, surface discharge’s molecule vibrational temperature and the electron density gradually decrease. The unequivalent distribution of the wall charges con-tributes to the formation of fence pattern.