Design of Parallel Electrical Resistance Tomography System for Measuring Multiphase Flow

作     者：董峰 许聪 张志强 任尚杰 

作者机构：Tianjin Key Laboratory of Process Measurement and ControlSchool of Electrical Engineering and AutomationTianjin University 

基　　金：Supported by the National Natural Science Foundation of China (51176141) the Natural Science Foundation of Tianjin(11JCZDJC22500) 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2012年第20卷第2期

页      码：368-379页

摘      要：ERT(electrical resistance tomography) is effective method for visualization of multiphase flows,offering some advantages of rapid response and low cost,so as to explore the transient *** at this target,a fully programmable and reconfigurable FPGA(field programmable gate array)-based Compact PCI(peripheral component interconnect) bus linked sixteen-channel ERT system has been *** data acquisition system is carefully designed with function modules of signal generator module;Compact PCI transmission module and data processing module(including data sampling,filtering and demodulating).The processing module incorporates a powerful FPGA with Compact PCI bus for communication,and the measurement process management is conducted in *** reconstruction algorithms with different speed and accuracy are also coded for this *** system has been demonstrated in real time(1400 frames per second for 50 kHz excitation) with signal-noise-ratio above 62 dB and repeatability error below 0.7%.Static experiments have been conducted and the images manifested good resolution relative to the actual object *** parallel ERT system has provided alternative experimental platform for the multiphase flow measurements by the dynamic experiments in terms of concentration and velocity.

主 题 词：electrical resistance tomography data acquisition compact peripheral component interconnect field programmable gate array digital filter digital demodulation 

学科分类：080704[080704] 08[工学] 080203[080203] 0807[工学-电子信息类] 0802[工学-机械学] 

核心收录：

D　O　I：10.1016/S1004-9541(12)60400-5

馆 藏 号：203912192...