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One-dimensional rainbow thermometry system by using slit apertures

Authors :: Xiang Gao
Sawitree Saengkaew
Jin Song
Yingchun Wu
Gérard Gréhan
Kefa Cen
Haoyu Jiang
Linghong Chen
Xuecheng Wu
Zhejiang University
CEU Zhejiang University, Hangzhou
Complexe de recherche interprofessionnel en aérothermochimie (CORIA)
Université de Rouen Normandie (UNIROUEN)
Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie)
Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)
Department of Surgery, Second Hospital of HeBei Medical University
Source :: Optics Letters, Optics Letters, Optical Society of America-OSA Publishing, 2014, 39 (3), pp.638--641. ⟨10.1364/OL.39.000638⟩
Publication Year :: 2014
Abstract: WOS:000330571200058; International audience; A new rainbow thermometry system by using slit apertures and a laser light sheet, called a one-dimensional rainbow thermometry (ORT) system, has been developed as an extension of global rainbow thermometry (GRT). This system is capable of one-dimensional or line measurements of the size and refractive index of droplets in the spray space, while the conventional GRT system is normally considered a typical "single-point" or "small volume" measurement method. The performance of this new system was tested and verified with both water and ethanol spray. The results show the feasibility and potential of ORT in simultaneous and one-dimensional measurement of the size and refractive index of liquid droplets, especially in the research field of spray evaporation and combustion. (C) 2014 Optical Society of America