谭超
个性化签名
 姓名：谭超
 目前身份：
 担任导师情况：
 学位：

学术头衔：
 职称：

学科领域：
自动化仪器仪表与装置
 研究兴趣：
2003年毕业于天津大学自动化专业，分别于2006年和2009年获硕士和博士学位，主要从事多相流测试技术和多传感器融合技术在两相/多相流中应用的研究。博士期间受“国家建设高水平大学公派研究生”项目资助，以联合培养博士生身份赴英国Cranfield大学留学。博士毕业后留校任教，现为天津大学电气与自动化工程学院副教授。
主要研究方向为：过程层析成像技术；两相/多相流在线检测技术；多传感器数据融合。近年来负责国家自然科学基金青年基金，天津市应用基础研究计划和教育部博士点新教师基金各一项。 以主要参加人身份参加了国家“863”计划、国家自然科学基金仪器专项、科技部重大仪器专项、国家自然科学基金重点项目、天津市应用基础研究计划和教育部“新世纪优秀人才”支持计划等课题研究。
研究工作获得2009年天津市自然科学三等奖；获得中国工程热物理学会多相流2009年学术年会“青年学者优秀论文陈学俊奖”；2009年“IEEE国际成像系统与技术会议（IEEEInternational Workshop on Imaging Systems and Techniques , IST）”最佳论文；2010年，天津大学优秀博士学位论文；2012年首批入选天津大学“北洋学者·青年骨干教师计划”；2013年天津市优秀博士学位论文。
在国内外学术期刊和会议上发表论文30余篇，其中，SCI 、EI检索（源）论文20篇，授权国家发明专利2项。

主页访问
2923

关注数
0

成果阅读
94

成果数
3
谭超， Tan Chao， Xu Yaoyuan and Dong Feng
Measurement Science and Technology, 2011, Vol.22, No.10, 104005 (13pp).，0001，（）：
1年11月30日
Electrical resistance tomography (ERT) is a nonintrusive technique to image the electrical conductivity distribution of a close vessel by injecting exciting current into the vessel and measuring the boundary voltages induced. ERT image reconstruction is characterized as a severely nonlinear and illposed inverse problem with many unknowns. In recent years, there are a growing number of papers published which aim to determine the locations and shapes of inclusions by assuming their conductivities are piecewise constant and isotropic. In this work, the boundary of inclusions is reconstructed by ERT with Boundary Element Method. The Jacobian matrix of forward problem is firstly calculated with a direct linearization method basing on boundary element, and validated through comparison with that determined by Finite Element Method and Analytical Method. A boundary reconstruction algorithm is later presented based on LevenbergMarquardt (LM) method. Several numerical simulations and static experiments were conducted to study the reconstruction quality, where much importance is put on the smoothness of boundaries in the reconstruction, thus a restriction of the curve radius is introduced to adjust the damping parameter for LM algorithm. Analytical results on the stability and precision of the boundary reconstruction demonstrate that stable reconstruction can be achieved when the conductivity of the objects much differs from that of background medium, and convex boundaries can also be precisely reconstructed. Contrarily, the reconstructions for inclusions with similar conductivities to the background medium are not stable. The situation of an incorrect initial estimation on inclusions’ number is numerically studied and the results show that the boundary of inclusions could be correctly reconstructed with a splitting/merging function under the aforementioned proper operation condition of the present algorithm.
electrical resistance tomography,， boundary reconstruction,， boundary element method,， Levenberg–Marquardt algorithm,， Jacobian matrix

29浏览

0点赞

0收藏

0分享

157下载

0评论

引用
谭超， Tan Chao， Dong Feng
Measurement Science and Technology, 2010, Vol.21, No.4, 045403 (12pp). ，0001，（）：
1年11月30日
Oilwater twophase flow widely exists and its measurement is of significance in oil well logging, oil transportations and etc. One of the techniques in common use in oilwater twophase flow rate measurement is the Differential Pressure (DP) meters combining a theoretic model connecting the mass flow rate of the mixture with the differential pressures generated by the throttling element installed inside the pipeline. Though a number of publications focus on DP meters in measuring gaswater twophase flows or wet gas, the existing models are still not very compatible in oilwater twophase flow. In this work, a series of oilwater twophase flow experiments were conducted in a horizontal pipe of 50mm diameter and the flow rate was measured by a Vcone meter with a diameter ratio of 0.65. Available correlations of DP meters developed from gaswater flow are studied and compared with the measured data from the Vcone meter. A modified correlation is proposed based on the influence of viscosity of oil upon the differential pressure model and threedimensional Computerized Fluid Dynamic (CFD) simulations. The results have shown that the proposed method achieves better accuracy in oilwater twophase flow rate measurement than other DP correlations, and it can be extended to other oilwater flow conditions by adjusting the tuning factor.
oil–water,， twophase flow,， Vcone flow meter,， differential pressure,， CFD simulations

34浏览

0点赞

0收藏

0分享

438下载

0评论

引用
谭超， Tan Chao， Dong Feng， Wu Mengmeng
Flow Measurement and Instrumentation, 2007, Vol.18, No.5, pp.255261.，0001，（）：
1年11月30日
Gas/liquid twophase flow is of great importance in various industrial processes. As the most important characteristic of a twophase flow, the flow regime not only characterizes the flow condition in an explicit way, but also determines the measurement model in each measuring method. Based on the application of Electrical Resistance Tomography (ERT) to a gas/liquid twophase flow on a vertical pipe, features reflecting the characteristics of gas/liquid twophase flow are extracted directly from the measured data without reconstruction of the crosssectional images. The statistical features are derived through time series statistical analysis. Meanwhile features in the waveletscale domain are derived through both onedimensional and twodimensional wavelet transform. All extracted features are considered as the input of a Support Vector Machine (SVM) algorithm to recognize the flow regime. The preliminary results show that the feature extraction methods of multifeature fusion and highdimensional wavelet transform are suitable for the identification of gas/liquid twophase flow regimes.
Gas/， liquid twophase flow， Flow regime recognition， Time series statistical analysis， Wavelet transform， Electrical resistance tomography

31浏览

0点赞

0收藏

0分享

296下载

0评论

引用