Abstract : the shaped technique of the electric arc tube s shell with neck , which is used in the small power metal - halide lamp , is introduced in this paper 摘要:超小功率高强度气体放电灯电弧管电极极间距误差要求小,二电极对中要求高,所以采用在电弧管泡壳两端加缩颈来定位电极。
It is found that the dominant microwave frequency is approximately unchanged at around 3 . 5ghz or at around 4 . 8ghz with the cathode - anode gap greater or less than 1 . 3cm in our model , respectively 当阴阳极间距在某一范围内变化时,微波频率基本不变,但随着阴阳极间距变化到另一范围,微波频率会发生跳变。
This method is based on the lightening model by analyzing the parameters affecting the lightening efficiency , such as moore ratio of sodium , inner diameter and thickness of the tube , distance of electrodes , and availing of the experiences accumulated in the convetional design method 分析钠摩尔分数、放电管内径、管壁厚度、极间距等主要参数对其发光效率的影响,并总结传统设计方法所提供的经验,建立放电数学模型。