该信号发生器输出电压的周期很精确且装定十分方便。
The period of output voltage of it is very accurate and easy toadjest.
实验表明，所设计的虚拟函数信号发生器输出信号性能优于普通传统信号源。
The experiment has proven that the signal performance generated by virtual function signal generator surpasses ordinary traditional instrument.
在脉冲发生器输出端后加一级驱动电路，再接入计数器的时钟脉冲源输入端，可有效地避免通常发生在实验过程中计数器不规则的跳变。
To use the way of put a driven circuit behind the pulser, lead through the input of count clock pulse, can avoid the irregular date on the counter during experiment effectively.
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