系统设计主要包括加法电路，A/D模数转换模块，串口通信模块，上位机显示模块等部分。
System design mainly includes the addition circuit, A/D analog-to-digital conversion module, serial communication module, PC display module, etc.
在硬件方面，特别讨论了信号调理模块、模数转换模块、FPGA芯片配置等功能模块的设计方案和硬件电路实现方法。
As the aspect of hardware, this articleparticularly discusses the schemes and circuits realization of some function modules, which include signal adjustment, A/D conversion and FPGA configuration.
测量模块主要完成待测信号的调理和模数转换，整个过程在微处理器的控制下完成。
Measurement module mainly completes the signal under test conditioning and analog-digital conversion, which is controlled by the microprocessor.
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