{"id":5266,"date":"2022-03-18T13:42:11","date_gmt":"2022-03-18T13:42:11","guid":{"rendered":"https:\/\/www.solids-solutions.com\/?page_id=5266"},"modified":"2023-08-30T11:38:38","modified_gmt":"2023-08-30T11:38:38","slug":"analyse-des-particules-et-gouttelettes-par-velocimetrie-doppler","status":"publish","type":"page","link":"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/analyse-des-particules-et-gouttelettes-par-velocimetrie-doppler\/","title":{"rendered":"Analyse des particules et gouttelettes par V\u00e9locim\u00e9trie Doppler"},"content":{"rendered":"<div class=\"gb-container gb-container-9f222e7c\"><div class=\"gb-inside-container\">\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<p class=\"wp-block-paragraph\">En V\u00e9locim\u00e9trie Doppler, les particules sont illumin\u00e9es par deux faisceaux laser et le d\u00e9calage de phase de la dispersion des signaux de lumi\u00e8re est mesur\u00e9 pour caract\u00e9risation de la taille des particules et de la taille des gouttelettes. Deux rayons laser sont divis\u00e9s en quatre faisceaux d\u2019\u00e9gale intensit\u00e9. Les faisceaux sont diverges vers un m\u00eame point et se croisent. La lumi\u00e8re diffract\u00e9e \u00e0 partir de particules passant \u00e0 travers le volume d\u2019analyse (le croisement des rayons laser) est m\u00e9lang\u00e9e au niveau du photo d\u00e9tecteur et r\u00e9sulte en un signal diff\u00e9rentiel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Puisque les rayons entrent dans les particules \u00e0 diff\u00e9rents angles, les chemins optiques \u00e0 un point arbitraire sur le d\u00e9tecteur est diff\u00e9rent, les ondes lumineuses sont d\u00e9cal\u00e9s l\u2019une par rapport \u00e0 l\u2019autre. Deux d\u00e9tecteurs permettent la d\u00e9termination de la taille des particules.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La technique est utilis\u00e9e pour caract\u00e9riser la taille et la vitesse des gouttelettes \u00e9mergentes d\u2019un a\u00e9rosol ou d\u2019un diffuseur ayant des tailles de 0.5 \u00e0 90 microns. .Les mesures sont effectu\u00e9es sur une TSI Phase Doppler analyseur des particules et le rapport se compose r\u00e9sultats de la taille des particules ou de la taille des gouttelettes et la vitesse de distribution.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:35%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"267\" height=\"200\" src=\"https:\/\/www.solids-solutions.com\/wp-content\/uploads\/Phase-doppler-velocimetry.jpg\" alt=\"\" class=\"wp-image-4206\"\/><\/figure>\n\n\n\n<div style=\"height:36px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/granulometrie-par-techniques-de-diffusion-de-la-lumiere\/\">Granulom\u00e9trie par techniques de diffusion de la lumi\u00e8re<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/laser-a-diffraction\/\">Diffraction Laser<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/analyse-de-nano-particules-par-spectroscopie-a-correlation-de-photons-pcs\/\">Analyse de nano particules par spectroscopie \u00e0 corr\u00e9lation de photons (PCS)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/analyse-des-particules-et-gouttelettes-par-velocimetrie-doppler\/\">Analyse des particules et gouttelettes par V\u00e9locim\u00e9trie Doppler<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/techniques-dimages-pour-caracterisation-des-particules\/\">Techniques d&rsquo;images pour caract\u00e9risation des particules<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/microscopie-electronique\/\">Microscopie \u00e9lectronique<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/autres-techniques-pour-caracterisation-des-particules\/\">Autres techniques pour caract\u00e9risation des particules<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>En V\u00e9locim\u00e9trie Doppler, les particules sont illumin\u00e9es par deux faisceaux laser et le d\u00e9calage de phase de la dispersion des signaux de lumi\u00e8re est mesur\u00e9 pour caract\u00e9risation de la taille des particules et de la taille des gouttelettes. Deux rayons laser sont divis\u00e9s en quatre faisceaux d\u2019\u00e9gale intensit\u00e9. Les faisceaux &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Analyse des particules et gouttelettes par V\u00e9locim\u00e9trie Doppler\" class=\"read-more button\" href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/analyse-des-particules-et-gouttelettes-par-velocimetrie-doppler\/#more-5266\" aria-label=\"En savoir plus sur Analyse des particules et gouttelettes par V\u00e9locim\u00e9trie Doppler\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":5249,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-5266","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Analyse des particules et gouttelettes par V\u00e9locim\u00e9trie Doppler.<\/title>\n<meta name=\"description\" content=\"Le laboratoire de Delft Solids Solutions offre analyse de la taille des particules et de la taille des gouttelettes par V\u00e9locim\u00e9trie Doppler\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.solids-solutions.com\/fr\/rd\/analyse-granulometrique-taille-et-forme-des-particules\/analyse-des-particules-et-gouttelettes-par-velocimetrie-doppler\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Analyse des particules et gouttelettes par V\u00e9locim\u00e9trie Doppler.\" \/>\n<meta property=\"og:description\" content=\"Le laboratoire de Delft Solids Solutions offre analyse de la taille des particules et de la taille des gouttelettes par V\u00e9locim\u00e9trie Doppler\" \/>\n<meta property=\"og:url\" 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