A new common cathode drive chip-MAX 7219 neon li ght scanning controller cascaded through a serial port 8031(8051)is presented.
介绍一种用8031(8051)串口，联级新型的共阴极驱动芯片— —MAX7219霓虹灯扫描控制器。
By the research of vibration cathode chamber,the new improvement design,which is directed against the problem of the particulates in contact with the metal cathode,was put forward.
通过对振动阴极反应室的研究,针对粉粒与金属阴极接触的问题,提出新的改进设计。
The motion analysis of particulates on the vibration cathode surface shows that the stop time particulates on the cathode surface is related to cathode inclination,Ar speed and the size of particulates,this stop time could be more than ten minutes.
对振动阴极上粉体的运动分析表明粉粒在阴极表面停留的时间与阴极表面倾斜角、气体反吹速度和粉粒大小等有关,其停留时间可达10min 以上。