| 基于SVM和ECT的两相流离散相浓度测量 |
| |
| 引用本文： | 彭珍瑞,殷红,祁文哲. 基于SVM和ECT的两相流离散相浓度测量[J]. 自动化与仪器仪表, 2008, 0(2): 72-74 |
| |
| 作者姓名： | 彭珍瑞 殷红 祁文哲 |
| |
| 作者单位： | 兰州交通大学机电工程学院,兰州,730070 |
| |
| 基金项目： | 甘肃省自然科学基金(编号：3ZS062-B25-016)，兰州交通大学“青蓝”人才资助项目 |
| |
| 摘 要： | 利用12电极电容层析成像系统(ECT)传感器和最小二乘支持向量机(LS-SVM),提出了两相流离散相浓度测量的新方法。电容传感器用来获取反应离散相分布的66个电容测量值。LS-SVM用来建立离散相浓度测量模型,模型的输入是66个独立的电容值,输出是离散相浓度值。本方法省去了传统ECT技术测量浓度时的图像重建过程。实验结果表明:该方法是有效的,测量误差在6%以内。
|
| 关 键 词： | 两相流 最小二乘支持向量机 浓度 电容 |
| 文章编号： | 1001-9227(2008)02-0072-03 |
| 修稿时间： | 2007-09-26 |
ECT and SVM based concentration measurement of two-phase flow |
| |
| PENG-Zhen-rui YIN Hong QI Wen-zhe. ECT and SVM based concentration measurement of two-phase flow[J]. Automation & Instrumentation, 2008, 0(2): 72-74 |
| |
| Authors: | PENG-Zhen-rui YIN Hong QI Wen-zhe |
| |
| Affiliation: | PENG-Zhen-rui YIN Hong QI Wen-zhe |
| |
| Abstract: | Based on 12-electrode Electrical Capacitance Tomography (ECT) sensor and Least Squares Support Vector Machine (LS-SVM),a new method for phase concentration measurement of two-phase flow was proposed. ECT sensor was used to obtain the 66 capacitance values,which reflected the phase distribution.LS-SVM was applied to establish the model for phase concentration measurement of two-phase flow.In this model,66 capacitance values were the inputs and the concentration was the output.This new method implemented direct concentration measurement of two-phase flow without the need of time-consuming image reconstruction.The experimental results show that it is effective and the measurement error is within 6%. |
| |
| Keywords: | Two-phase flow Least Squares Support Vector Machine (LS-SVM) Concentration Electrical capacitance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
