We find defect through experiment and analyzed reason, then bring up the excogitation that bring down the input signal frequency to demodulator chip by use the multiplier. 通过模拟实验,发现存在的缺陷,并分析原因,提出通过运用乘法器降低输入到解调芯片信号频率的设计方案。
Presents the frequency control excogitation for multiple pump in parallel in a primary-secondary pumping system. 结合具体工程,着重介绍了多台变频二级泵并联的自控方案及验证过程。