The traditional power meter calibrating system usually has the shortcomings of low efficiency and large volume due to its standard voltage and current source rely on the analog amplifier.
传统的电力校表台由模拟功放向待校电表及标准表提供校表电流，造成系统效率低、体积大、重量重。
In order to solve the problem about the reactor period calibrating instrument, a new software signal source based on numerical calculation is presented.
为了解决反应堆周期校验仪存在的问题，提出一种基于数值计算的软件信号源。
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