【摘要】 高压汞灯石英管内惰性气体的填充是保证灯性能的关键因素。本研究采用气相色谱-质谱法测定高压汞灯真空度,测得氩气的相对质量校正因子和氩气/氮气的峰面积比(AAr/AN2),然后根据气体状态方程,计算出灯内氩气压力,并比较5种不同性能的高压汞灯灯管中氩气填充量的差异。结果表明,不同类型的高压汞灯其氩气压力明显不同,而同一类型的高压汞灯内氩气压力值国产的比国外的高,并从惰性气体(氩气)填充量的角度表征了高压汞灯的性能。更多还原

【Abstract】 The pressure of inert gas in quartz tubes is critical to the performance of high-pressure mercury lamps.The vacuum in high-pressure mercury lamps were determined by gas chromatography-mass spectrometry(GC/MS).From the relative mass calibration factor of argon fm’,and the ratios of peak area of argon to nitrogen(AAr/AN2) were measured by GC/MS.We induced a equation which was described the relation between pressure of PAr and(AAr/AN2) or the mass ratios of argon to nitrogen(mAr/mN2).Using this equation with other relative data,PAr in the air and high-pressure mercury lamps were measured.The result shows that difference in the pressure of argon among those high-pressure mercury lamps with different performance and type of high-pressure mercury lamps,which are different.更多还原