Simultaneous measurement of the 3D position, refractive index and droplet size of transparent spherical droplets using three-dimensional rainbow refractometry

IF 4.6 2区工程技术 Q2 ENGINEERING, CHEMICAL Powder Technology Pub Date : 2025-02-28 DOI:10.1016/j.powtec.2025.120818

Zhiwen Deng , Zhiming Lin , Xuecheng Wu , Yuxuan Zhao , Qiwen Jin , Yingchun Wu , Yongxin Zhang , Chenghang Zheng

{"title":"Simultaneous measurement of the 3D position, refractive index and droplet size of transparent spherical droplets using three-dimensional rainbow refractometry","authors":"Zhiwen Deng , Zhiming Lin , Xuecheng Wu , Yuxuan Zhao , Qiwen Jin , Yingchun Wu , Yongxin Zhang , Chenghang Zheng","doi":"10.1016/j.powtec.2025.120818","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, we investigate three-dimensional rainbow refractometry (TDRR) as a method for estimating the 3D position, refractive index, and droplet size of transparent spherical droplets. The principles governing the variation of rainbow signals with axial position under cylindrical lens modulation are elucidated, allowing for estimation of the droplet’s axial position based on fringe rotation angles. We also present a novel calibration technique for absolute scattering angles in TDRR measurements and propose an innovative data processing approach. A comprehensive TDRR system has been constructed to validate measurements of monodisperse water droplet flows. The results indicate that the error in 3D position measurement is less than 3%, while the absolute error in refractive index measurement is below 0.0015 and droplet size errors remain under 5%. As a new technique for simultaneous droplet positioning and multi-parameter assessment, TDRR offers significant advantages for investigating droplet interactions and dynamics in a large space.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"456 ","pages":"Article 120818"},"PeriodicalIF":4.6000,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Powder Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S003259102500213X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, we investigate three-dimensional rainbow refractometry (TDRR) as a method for estimating the 3D position, refractive index, and droplet size of transparent spherical droplets. The principles governing the variation of rainbow signals with axial position under cylindrical lens modulation are elucidated, allowing for estimation of the droplet’s axial position based on fringe rotation angles. We also present a novel calibration technique for absolute scattering angles in TDRR measurements and propose an innovative data processing approach. A comprehensive TDRR system has been constructed to validate measurements of monodisperse water droplet flows. The results indicate that the error in 3D position measurement is less than 3%, while the absolute error in refractive index measurement is below 0.0015 and droplet size errors remain under 5%. As a new technique for simultaneous droplet positioning and multi-parameter assessment, TDRR offers significant advantages for investigating droplet interactions and dynamics in a large space.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

利用三维彩虹折射法同时测量透明球形液滴的三维位置、折射率和液滴大小

在这项研究中，我们研究了三维彩虹折射法（TDRR）作为估计透明球形液滴的三维位置、折射率和液滴大小的方法。阐述了在圆柱透镜调制下，彩虹信号随轴向位置变化的原理，从而可以根据条纹旋转角度估计液滴的轴向位置。我们还提出了一种新的TDRR测量中绝对散射角的校准技术，并提出了一种创新的数据处理方法。建立了一个综合的TDRR系统来验证单分散水滴流动的测量结果。结果表明，三维位置测量误差小于3%，折射率测量绝对误差小于0.0015，液滴尺寸误差小于5%。TDRR作为一种新的液滴同步定位和多参数评估技术，在研究大空间内液滴相互作用和动力学方面具有显著的优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.

期刊最新文献

Editorial Board Contents continued Graphical abstract TOC Graphical abstract TOC The mechanism of radial airflow in enhancing dry high-gradient magnetic separation