Online Measurement of Water Entry Cavity Using Outward Electrical Capacitance Tomography
文献类型：期刊论文
| 作者 | Sun, Jiangtao2; Shen, Mengxian2; Yuan, Zitang2; Liang, Te2; Suo, Peng3; Wang ZY(王志英)1; Wang, Yadong4; Li, Changwen4; Xu, Lijun2 |
| 刊名 | IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
 |
| 出版日期 | 2025 |
| 卷号 | 74页码:9 |
| 关键词 | Cavity profile image reconstruction online measurement outward electrical capacitance tomography (Outward-ECT) water entry Cavity profile image reconstruction online measurement outward electrical capacitance tomography (Outward-ECT) water entry |
| ISSN号 | 0018-9456 |
| DOI | 10.1109/TIM.2025.3544390 |
| 通讯作者 | Wang, Zhiying(wangzhiying@imech.ac.cn) ; Xu, Lijun(lijunxu@buaa.edu.cn) |
| 英文摘要 | Online measurement of water entry cavities is important for the stable manipulation of high-speed underwater vehicles. However, there are almost no feasible methods to track and measure the cavity online when the vehicles are moving. For this purpose, an online measurement method using outward electrical capacitance tomography (Outward-ECT) is proposed to obtain the circumferential cavity profile on the outer surface of an axisymmetric blunt body during water entry. An Outward-ECT physical model is developed to incorporate the effect of finite boundaries on the cavity measurement in laboratory tests. Based on this physical model, simulation is conducted and a cavitator equipped with Outward-ECT electrodes is designed and fabricated, enabling the reconstruction of the cavity profile during water entry. Experiments were carried out to verify the proposed method, where images taken by a high-speed camera are used as references. It is found that the cavity profiles reconstructed by the Outward-ECT are consistent with their references when the cavitation enters the water in different attitudes, where the relative measurement errors of the cavity diameter are less than 5.9%. Analyzing the boundary measurements by the Outward-ECT sensor shows that the global capacitance is related to the water entry stages and attitudes of the cavitator as well as the initial entry velocity. Overall, the success of this approach would provide a feasible method for the online measurement of the water entry cavity when high-speed underwater vehicles are moving, which is essential for their online control to maintain a stable cavity. |
| 分类号 | 一类 |
| 资助项目 | National Natural Science Foundation of China[U21B2011] ; National Natural Science Foundation of China[12372243] |
| WOS研究方向 | Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:001445070100004 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | 王志英，Xu, Lijun |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/100652]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China; 3.Beihang Univ, Hangzhou Int Innovat Inst, Hangzhou 311115, Peoples R China; 4.Beijing Inst Mech & Elect Engn, Beijing 100000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jiangtao,Shen, Mengxian,Yuan, Zitang,et al. Online Measurement of Water Entry Cavity Using Outward Electrical Capacitance Tomography[J]. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,2025,74:9. |
| APA | Sun, Jiangtao.,Shen, Mengxian.,Yuan, Zitang.,Liang, Te.,Suo, Peng.,...&Xu, Lijun.(2025).Online Measurement of Water Entry Cavity Using Outward Electrical Capacitance Tomography.IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,74,9. |
| MLA | Sun, Jiangtao,et al."Online Measurement of Water Entry Cavity Using Outward Electrical Capacitance Tomography".IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 74(2025):9. |
入库方式： OAI收割
来源：力学研究所
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