陶瓷金卤灯高频工作时无声共振频率窗口的研究  

Frequency Windows Research of Metal Halide Lamps Operating at High Frequency and Free from Acoustic Resonance

作　　者：蔡倪胜 周振民 魏颖东 韩秋漪[1] 张善端[1] 

机构地区：[1]先进照明技术教育部工程研究中心复旦大学电光源研究所,上海200433 [2]上海亚明照明有限公司,上海201801

出　　处：《中国照明电器》2015年第12期6-10,共5页China Light & Lighting

基　　金：上海亚明照明有限公司资助

摘　　要：采用电参数测量方法研究陶瓷金卤灯中的声共振现象。测量70 W陶瓷金卤灯在10～300 k Hz之间的电压、电流随频率的变化,从电压波动和阻抗判断22～30 k Hz和210～300 k Hz为无声共振的频率窗口。其次通过4个相同型号灯的参数比较,证实70 W陶瓷金卤灯频率窗口的离散性很小。实验最后考察了灯在寿命期间频率窗口的变化情况,发现所测陶瓷金卤灯稳定频率窗口是不变的。Acoustic resonance（AR） of metal halide lamps was studied by means of measuring their electric parameters. Electric parameters of 70 W ceramic metal halide lamps operated within the frequency range from 10 to 300 kHz were measured to detect AR. The results show that the frequency windows are in the range of 22-30 k Hz and 210-300 k Hz judging from the voltage deviation and lamp resistance. It＇s confirmed that the frequency windows without AR are almost the same for 4 lamps of the same type. The variation of the frequency window during life time was also investigated and it was found remaining stable.

关 键 词：陶瓷金卤灯 声共振 高频 频率窗口 阻抗 

分 类 号：TM923.32[电气工程—电力电子与电力传动]