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本文扼要地介绍了 XG1型狭缝式高速摄影机快门。在这种快门中,开关光路的机构是一对由电磁铁控制的,以弹簧为动力的薄钢片。快门从打开到关闭的时间由电子线路控制,快门从电磁铁断电到全开(或从关门讯号到全关)所需的时间约3.5毫秒,数据重复性误差为±0.02毫秒,由电子控制线路决定的快门开启时间可在5～100毫秒内任意选定。文章还对快门的机械电磁部份作了理论分析,得出了快门电磁机械部份开启或关闭的最短极限时间,指出了提高快门速度的有效措施。
This article briefly introduces the XG1 slit-type high-speed camera shutter. In this shutter, the mechanism for switching the light path is a pair of electromagnetically-controlled, spring-driven, thin steel sheets. The time it takes for the shutter to open and close is controlled by electronic circuitry. The time it takes for the shutter to fully open (or the signal to close) from the solenoid is about 3.5 milliseconds and the data repeatability error is ± 0.02 milliseconds, electronically controlled The circuit determines the shutter open time can be arbitrarily selected within 5 ~ 100 milliseconds. The paper also makes a theoretical analysis of the mechanical electromagnetic part of the shutter, and obtains the shortest time when the shutter electromechanical part is turned on or off. The effective measures to improve the shutter speed are pointed out.