如何解决光电灵敏电流计的零点漂移

How to eliminate the zero shift of photoelectric galvanometer

分析了直流复射式光电灵敏电流计产生零点漂移的原因 ,用冷光源代替白炽小灯泡并改进光源的光路系统 ,解决了灵敏电流计零点漂移 .

The reason for zero shift of the duplex photoelectric galvanometer is analyzed. The solution, taking place of the filament lamp with the cold light source, and developing path system of light source, is provided to eliminate it.