Three-dimensional flame measurements with large field angle | |
Wang KL(王宽亮); Li F(李飞); Ceng H(曾徽); Yu XL(余西龙); Li, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. | |
发表期刊 | OPTICS EXPRESS |
2017-09-04 | |
卷号 | 25期号:18页码:21008-21018 |
ISSN | 1094-4087 |
摘要 | A system for three-dimensional computed tomography of chemiluminescence was developed to measure flames over a large field angle. Nine gradient-index rods, with a 9 x 1 endoscope and only one camera are used. Its large field of view, simplicity, and low cost make it attractive for inner flow field diagnostics. To study the bokeh effect caused by the imaging system on reconstruction solutions, fluorescent beads were used to determine the blurring function. Experiments using a steady diffusion flame were conducted to validate the system. Three models, namely the clear-imaging, out-of-focus imaging, and deconvolution models, were utilized. Taking the bokeh effect into account, the results suggest that based on run-times the deconvolution model provides the best reconstruction accuracy without increasing computational time. (C) 2017 Optical Society of America;A system for three-dimensional computed tomography of chemiluminescence was developed to measure flames over a large field angle. Nine gradient-index rods, with a 9 x 1 endoscope and only one camera are used. Its large field of view, simplicity, and low cost make it attractive for inner flow field diagnostics. To study the bokeh effect caused by the imaging system on reconstruction solutions, fluorescent beads were used to determine the blurring function. Experiments using a steady diffusion flame were conducted to validate the system. Three models, namely the clear-imaging, out-of-focus imaging, and deconvolution models, were utilized. Taking the bokeh effect into account, the results suggest that based on run-times the deconvolution model provides the best reconstruction accuracy without increasing computational time. (C) 2017 Optical Society of America |
DOI | 10.1364/OE.25.021008 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000411529000005 |
关键词[WOS] | Fiber-based Endoscopes ; Chemiluminescence ; Tomography ; Deconvolution ; Combustion ; Microscopy ; Resolution ; Ignition ; Media ; Khz |
WOS研究方向 | Optics |
WOS类目 | Optics |
项目资助者 | Natural National Science Foundation of China (NSFC)(11372329) |
课题组名称 | LHD高温气流激光诊断 |
论文分区 | 二类/q1 |
力学所作者排名 | 1 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/60937 |
专题 | 高温气体动力学国家重点实验室 |
通讯作者 | Li, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
推荐引用方式 GB/T 7714 | Wang KL,Li F,Ceng H,et al. Three-dimensional flame measurements with large field angle[J]. OPTICS EXPRESS,2017,25,18,:21008-21018. |
APA | Wang KL,Li F,Ceng H,Yu XL,&Li, F .(2017).Three-dimensional flame measurements with large field angle.OPTICS EXPRESS,25(18),21008-21018. |
MLA | Wang KL,et al."Three-dimensional flame measurements with large field angle".OPTICS EXPRESS 25.18(2017):21008-21018. |
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