Analysis on signal integrity based on ECT system

MA Min; LU Cheng-chao; JIANG Feng

doi:10.13873/J.1000-9787(2016)07-0030-02

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Analysis on signal integrity based on ECT system

更新时间：2025-09-11

- Analysis on signal integrity based on ECT system
- Vol. 35, Issue 7, Pages: 30-31+34(2016)
- 作者机构：
  
  中国民航大学航空自动化学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2016)07-0030-02
  CLC： TP391.41
- Published：2016
- 稿件说明：
移动端阅览
[1]马敏,陆成超,江锋.基于ECT系统的信号完整性分析[J].传感器与微系统,2016,35(07):30-31+34.

MA Min, LU Cheng-chao, JIANG Feng. Analysis on signal integrity based on ECT system[J]. 2016, 35(7): 30-31+34.
[1]马敏,陆成超,江锋.基于ECT系统的信号完整性分析[J].传感器与微系统,2016,35(07):30-31+34. DOI： 10.13873/J.1000-9787(2016)07-0030-02.

MA Min, LU Cheng-chao, JIANG Feng. Analysis on signal integrity based on ECT system[J]. 2016, 35(7): 30-31+34. DOI： 10.13873/J.1000-9787(2016)07-0030-02.

摘要

为了进一步提高电学层析成像（ECT）采集系统的测量精度

分析研究了ECT信号的完整性对测量结果的影响。针对测量电容信号微弱、值在p F级别的特点

设计出一种考虑信号完整性的ECT采集系统

其传感器占空比为81%。利用上述系统来分析信号完整性对测量结果的影响。实验结果表明:当正弦激励信号的峰峰值为18.7 V时

采集到的最大信号经过电流/电压（C/V）转换后的电压峰峰值为921 m V

与理论计算结果基本吻合;运用灵敏度矩阵系数算法

在PC上得出了清晰的ECT图像。表明该测量系统满足精度要求。

Abstract

In order to further improve measuring precision of electrical capacitance tomography（ ECT） acquiring system

analyze and research on effect of integrity of ECT signal on measurement results. Aiming at characteristics of weak measuring capacity signal

and the value is in p F level

an ECT acquisition system designed considering signal integrity

duty ratio of sensor is 81 %. Then

the above system is used to analyze the effect of signal integrity on measured results. Experimental results show that when the peak-to-peak value of sine excitation signal is18. 7 V

after current voltage（ C/V） conversion

the voltage peak-to-peak value of the collected biggest signal is921 m V

which is consistent with the theoretical calculation results; by using sensitivity matrix coefficient algorithm

clear ECT images are obtained on PC. The results show that the system meets the requirements of measurement precision of system.

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Keywords

references

基于ECT技术的航空发动机尾气监测系统设计 [J]. 马敏,周苗苗,李新建. 传感器与微系统 . 2015(05)

电容层析成像技术的研究现状综述 [J]. 彭珍瑞,殷红,董海棠. 传感器与微系统 . 2009(09)

PCB传输线信号完整性及电磁兼容特性研究 [D]. 陈建华. 西安电子科技大学 2010

高速电路电源分配网络设计与电源完整性分析 [D]. 张木水. 西安电子科技大学 2009

电阻抗（ECT/ERT）双模态层析成像技术研究 [D]. 何永勃. 天津大学 2006

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