The thesis analyzes the errors and makes the improvements in software aspectsuch as how to improve data precision and adopting digital filtering method as well asin hardware aspect where synchronized sampling and selection of ADC are provided.

• 本文分别对测量方法、硬件和软件进行了误差分析，在软件方面提出如何提高数据处理精度以及引入FIR数字抗混叠滤波器等改进方法； 硬件上则包括同步采样的实现、ADC的选取等改进方法。