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中文摘要：
介绍了用高速采集卡和计算机组成的脉冲信号自动采集系统。设计的触发电路对输入的任何极性脉冲都能产生可靠的触发信号；利用采集卡的中间触发方式实现了脉冲信号的完整捕获；采用光耦隔离提高了抗干扰能力和防护能力。大量测试结果表明该系统稳定、可靠。
英文摘要：
In this paper, a pulse signal automation recorder system, which is made up with high speed acquisition card and computer is introduced. The developed trigger circuit can produce a reliable trigger signal at either polar of the input pulse signal. In the middle trigger mode of the analog input card, the pulse signal can be completely captured. The system uses optic coupler to reduce electromagnetic interference and protect the card. A lot of tests show that the system is stable and reliable.
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