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Design and implementation of data acquisition system for the electrical capacitance tomography
Author(s): 
Pages: 87-92
Year: Issue:  5
Journal: Electric Machines and Control

Keyword:  电容层析成像实时数据采集现场可编程门阵列信号处理数字解调;
Abstract: 针对电容层析成像数据采集系统数据采集实时性问题,在详细分析ECT数据采集系统工作原理的基础上,提出一种基于现场可编程门阵列(FPGA)的新型数据采集系统.该系统以FPGA作为核心控制单元,通过控制交流激励电压信号产生,调整ECT电容传感器各电极状态,在FPGA内部对采集信号进行数字解调,以达到实时数据采集的目的.仿真实验结果表明:新型ECT数据采集系统计算精确度得到提高,数据采集速度快于传统ECT数据采集系统,系统稳定时间缩短,为ECT系统实时数据采集提供一种新方法.
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