发光学报2018，Vol.39Issue(3)：349-355,7.DOI:10.3788/fgxb20183903.0349
锯齿波激励氩气介质阻挡放电的发光特性
Optical Characteristics of Saw-tooth Voltage Excited Dielectric Barrier Discharge in Argon
摘要
Abstract
A micro-gap dielectric barrier discharge decive in a parallel plate geometry is excited by a saw-tooth voltage to produce a stepped discharge,whose current waveform presents a plateau every half voltage cycle. It is found that the duration and amplitude of the discharge plateau increase with the in-creasing of the peak value of the applied saw-tooth voltage. The temporal evolution in the discharge plat-eau is investigated through optical method. It is confirmed that the stepped discharge is in an atmospheric Townsend discharge regime. Scanning the optical emission spectrum from the discharge,it is found that the spectrum is composed of the second positive system of nitrogen molecule(C3Πu→B3Πu), OH (A2∑+→X2Π) and ArⅠ. With the increasing of the peak value of the applied saw-tooth voltage,it in-creases for the spectral intensity of OH(308.8 nm)and the molecular vibrational temperature,while the excited electron temperature decreases. By comparing the spectral line intensity of ArⅠ(750.4 nm),it is found that the spectral line intensity produced by saw-tooth wave excited dielectric barrier discharge is larger than that of sine wave excited dielectric barrier discharge under the same peak voltage. All of these physical phenomena mentioned above are analyzed qualitatively by gas discharge mechanism.关键词
发射光谱/时间演化/介质阻挡放电/汤森放电/分子振动温度/电子激发温度Key words
optical emission spectrum/temporal evolution/dielectric barrier discharge/townsend discharge/molec-ular vibtration tempearture/electron excited temperature分类
数理科学引用本文复制引用
李雪辰,吴凯玥,张琦,楚婧娣,王彪,贾鹏英..锯齿波激励氩气介质阻挡放电的发光特性[J].发光学报,2018,39(3):349-355,7.基金项目
国家自然科学基金(11575050) （11575050）
河北省自然科学基金(A2015201092,A2015201199,A2016201042) （A2015201092,A2015201199,A2016201042）
河北省三三三人才经费(A2016005005) （A2016005005）
河北省百优人才支持计划(SLRC2017021)资助项目 Supported by National Natural Science Foundation of China(11575050) （SLRC2017021）
Natural Science Foundation of Hebei Province(A2015201092,A2015201199,A2016201042) （A2015201092,A2015201199,A2016201042）
333 Talents Fund of Hebei Province(A2016005005) （A2016005005）
100 Talents Support Plan of Hebei Province(SLRC2017021) （SLRC2017021）
