IMECH-IR  > 高温气体动力学国家重点实验室
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.
Source PublicationOPTICS EXPRESS
2017-09-04
Volume25Issue:18Pages:21008-21018
ISSN1094-4087
Abstract

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

DOI10.1364/OE.25.021008
Indexed BySCI ; EI
Language英语
WOS IDWOS:000411529000005
WOS KeywordFiber-based Endoscopes ; Chemiluminescence ; Tomography ; Deconvolution ; Combustion ; Microscopy ; Resolution ; Ignition ; Media ; Khz
WOS Research AreaOptics
WOS SubjectOptics
Funding OrganizationNatural National Science Foundation of China (NSFC)(11372329)
DepartmentLHD高温气流激光诊断
Classification二类/q1
Ranking1
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60937
Collection高温气体动力学国家重点实验室
Corresponding AuthorLi, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Recommended Citation
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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