根据系统的特点，通过静态设计，选取元件参数，然后通过动态建模分析以及几种控制策略的仿真研究。
According to the feature of this system, through static design and selecting component's parameter, then carrying out dynamic model's establishment and simulation of several kinds control strategies.
该电路采用分立元件设计激励信号，降低了系统成本，具有动态测量范围宽、灵敏度高等特点，已成功应用于电容层析成象系统的测量中；
The circuit has good characteristics of widely dynamic range, high sensitivity and low cost by designing generator by self. It has been applied to ECT system.
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