{"id":2685,"date":"2014-06-23T10:56:49","date_gmt":"2014-06-23T09:56:49","guid":{"rendered":"https:\/\/www.ultraflux.net\/mesure-debit-fleuve-2-2\/"},"modified":"2015-05-29T16:01:16","modified_gmt":"2015-05-29T15:01:16","slug":"river-flow-rate-measurement-seine-troyes-area","status":"publish","type":"page","link":"https:\/\/www.ultraflux.net\/en\/applications\/rivers-and-natural-environments\/river-flow-rate-measurement-seine-troyes-area\/","title":{"rendered":"River flow rate measurement (Seine &#8211; Troyes area)"},"content":{"rendered":"<ul class=\"gallery\"><li class=\"active image-1\"><p><img width=\"1000\" height=\"500\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-de-d\u00e9bit-\u00e0-Pont-Hubert-500x1000.jpg\" class=\"attachment-large size-large\" alt=\"\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-de-d\u00e9bit-\u00e0-Pont-Hubert-500x1000.jpg 1000w, https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-de-d\u00e9bit-\u00e0-Pont-Hubert-500x1000-300x150.jpg 300w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><\/li><li class=\"image-2\"><p><img width=\"1000\" height=\"500\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-du-d\u00e9bit-de-la-Seine-au-niveau-de-Pont-Hubert-1000x500.jpg\" class=\"attachment-large size-large\" alt=\"\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-du-d\u00e9bit-de-la-Seine-au-niveau-de-Pont-Hubert-1000x500.jpg 1000w, https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-du-d\u00e9bit-de-la-Seine-au-niveau-de-Pont-Hubert-1000x500-300x150.jpg 300w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><\/li><\/ul><nav id=\"gallery-nav\"><ul class=\"gallery-nav\"><li class=\"active image-1\"><p><\/p><\/li><li class=\"image-2\"><p><\/p><\/li><\/ul><\/nav>\n<div class=\"block\"><div class=\"title\">BACKGROUND<\/div><div class=\"text\"><div class=\"text-container\"><p>\nThe Grand Troyes water board continually monitors the Seine level. This board is in change of monitoring and anticipating high water levels in the Seine and protecting against any floods. It uses various measurement points situated in the greater Troyes area.<\/p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">DESCRIPTION OF THE APPLICATION<\/div><div class=\"text\"><div class=\"text-container\"><p>\nThe application that interests us is situated on the part of the Seine that passes through Troyes, just below a bridge. It measures flow rate using six measurement chords (i.e. 12 probes) and a converter. The distance between probes is around 15m while the distance between the banks is up to 12m. The bridge has three pillars, with two measurement chords on each (i.e. four probes\/pillar).<\/p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">EQUIPMENT USED<\/div><div class=\"text\"><div class=\"text-container\"><\/p>\n<table>\n<tbody>\n<tr>\n<td colspan=\"2\">FLOW METER<\/td>\n<\/tr>\n<tr>\n<td>Uf 831 CO multichord converter<\/td>\n<td>SM 1684 wetted probes<\/td>\n<\/tr>\n<tr>\n<td><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-1479\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Uf-831-220x190.jpg\" alt=\"Convertisseur Uf 831\" width=\"251\" height=\"217\" \/><\/td>\n<td><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-1480\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/SM-1684-210x259.jpg\" alt=\"Sonde mouill\u00e9e SM 1684\" width=\"155\" height=\"191\" \/><\/td>\n<\/tr>\n<tr>\n<td>This converter can be used to take reliable and precise measurements of any type of free surface flow.<\/td>\n<td>Six pairs of probes are used to improve precision via six measurement chords. This corresponds to four probes per bridge pillar.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">RESULTS<\/div><div class=\"text\"><div class=\"text-container\"><p>\nMeasurement uncertainty is around 5%.<\/p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">ADVANTAGES<\/div><div class=\"text\"><div class=\"text-container\"><\/p>\n<ul>\n<li>Continuous measurements,<\/li>\n<li>Dynamic measurements,<\/li>\n<li>Repeatability,<\/li>\n<li>Multi-channel and multi-chord measurements (the sum of the flow rates generates the total flow rate),<\/li>\n<li>Precision over the range of the flow (from low to high water levels).<\/li>\n<\/ul>\n<p>\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":0,"parent":5739,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>River flow rate measurement | Ultraflux - ultrasonic flow meters<\/title>\n<meta name=\"description\" content=\"Use of ultrasonic flow meters &amp; 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