Feasibility of optical computerized tomography for measuring the species concentration distribution of flow fields |
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| Affiliation: | 1. Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing University of Information Science & Technology, Nanjing 210044, China;2. School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China;3. Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science and Technology, Nanjing 210044, China;4. School of Physics and Electronic Engineering, Nanjing Xiaozhuang University, Nanjing 211171, China;1. Univ. Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, Procédés Alimentaires et Microbiologiques, F-21000 Dijon, France;2. Laboratoire Interdisciplinaire Carnot de Bourgogne, CNRS UMR 6303, dept Interface, GERM, Univ. de Bourgogne Franche-Comté, 21078 Dijon, France;1. Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran;2. Department of Electrical Engineering, Amirkabir University of Technology, Iran;1. Harbin Institute of Technology, Harbin 150001, China;2. Shanghai Aerospace Control Technology Institute, Shanghai 201109, China;1. College of Computer and Information Engineering, Tianjin Normal University, Tianjin 300387, China;2. College of Computer and Control Engineering, Nankai University, Tianjin 300071, China;1. Signals and Software Group, Discipline of Electrical Engineering, Indian Institute of Technology, Indore 453446, India;2. Photonics Laboratory, Department of Electronics & Instrumentation Engineering, Institute of Engineering & Technology, Devi Ahilya University, Khandwa Road, Indore 452001, India |
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| Abstract: | In this paper, the feasibility of using optical computerized tomography (OCT) methods for measuring the distribution of species concentration for flow fields is analyzed and discussed. First, feasible methods are chosen for two or three objects composed flow fields from the perspective of the measurable principle. Second, both common gas and plasma are chosen as two typical examples for specific analysis and discussion. The results show that the feasibility and applicable range of OCT methods are related to the temperature, pressure, and species composition of the measured flow fields. Finally, the study indicates that OCT methods are more suitable for measuring the distribution of species composition for common gas rather than plasma. In a word, this study could be helpful for extending the applicable range of OCT methods, which are based on the measurement of the refractive index. |
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| Keywords: | Optical computerized tomography (OCT) Species composition distribution Refractive index interferometry Moiré deflectometry |
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