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中文摘要：
近大气压条件下，在介质阻挡放电系统中得到了氩气和空气混合气体在300-800nm范围内的发射光谱，研究了中等pd值（约6．4×10^3Pa·cm）氩气和空气混合气体中电子激发温度与分子振动温度。实验选用两条ArI谱线763．51nm（2P6→1S5）与772．42nm（2P2→1S），用强度对比法测量电子激发温度，利用氮分子第二正带系（C^3Πu→B3Πg）计算氮分子振动温度。实验结果表明：电子激发温度和分子振动温度均随电压的增加而增加，并且电子激发温度随电压的变化速率大于分子振动温度的变化速率。
英文摘要：
The optical emission spectra of Ar/air dielectric barrier discharge （DBD） scanned from 300-800 nm near atmospheric pressure were obtained. Electron excitation temperature （Text） and molecule vibrational temperature （Tv） in Ar/air DBD at the middle value of pressure-distance （pd） product （about 6. 4 × 10^3 Pa ·cm） were studied. The ArI 763.51 nm（2P6→1S5 ） and 772.42 nm（2P2→1S3 ） lines were chosen to estimate Text. Tv was measured by the N2 second positive band （ C^3Πu→B3Πg ）. It was found that Texc and Tv increase with increasing applied voltage. And the varying rate of Texc with increasing voltage is bigger than that of Tv.
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