{"id":338,"date":"2014-12-28T00:03:57","date_gmt":"2014-12-27T22:03:57","guid":{"rendered":"https:\/\/biere.alereno.org\/?p=338"},"modified":"2015-01-08T09:50:46","modified_gmt":"2015-01-08T07:50:46","slug":"construction-des-sondes-de-temperature","status":"publish","type":"post","link":"https:\/\/biere.alereno.org\/?p=338","title":{"rendered":"Construction des sondes de temp\u00e9rature"},"content":{"rendered":"<p>J&rsquo;ai besoin de 5 sondes. J&rsquo;ai choisi de les fabriquer \u00e0 partir d&rsquo;un petit composant de <a href=\"http:\/\/www.maximintegrated.com\/en\/products\/analog\/sensors-and-sensor-interface\/DS18B20.html\">chez Maxim : le DS18B20<\/a>. Il est archi-connu et pr\u00e9sente les caract\u00e9ristiques que je recherche : pas cher (environ 1 dollar pi\u00e8ce si on les ach\u00e8te par\u00a010) pr\u00e9cis entre 0\u00b0C et 110\u00b0C, et relativement simple \u00e0 mettre en oeuvre avec le microcontrolleur que j&rsquo;utiliserai. Et c&rsquo;est un petit composant d&rsquo;environ 5mm avec trois pattes, donc il ne prend pas trop de place&#8230;<\/p>\n<p>Vous pouvez les voir au milieu de cette photo au milieu de colle et de pate thermique et des thermowell dans lesquels ils seront gliss\u00e9s. Les thermowell sont de simples petits tubes d&rsquo;inox creux, ferm\u00e9 d&rsquo;un cot\u00e9&#8230; Ceux-ci font 100mm par 6mm.<\/p>\n<p><a href=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0189.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-339\" src=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0189.jpg\" alt=\"IMG_0189\" width=\"800\" height=\"534\" srcset=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0189.jpg 800w, https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0189-300x200.jpg 300w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>Je soude donc les DS18B20 sur un cable \u00e0 3 conducteurs (4 en r\u00e9alit\u00e9, mais bon&#8230;) :<a href=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0193.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-340\" src=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0193.jpg\" alt=\"IMG_0193\" width=\"800\" height=\"534\" srcset=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0193.jpg 800w, https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0193-300x200.jpg 300w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><a href=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0195.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-341\" src=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0195.jpg\" alt=\"IMG_0195\" width=\"800\" height=\"534\" srcset=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0195.jpg 800w, https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0195-300x200.jpg 300w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>Et les fixe \u00e0 l&rsquo;autre bout sur un connecteur M12.<a href=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0196.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-342\" src=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0196.jpg\" alt=\"IMG_0196\" width=\"800\" height=\"534\" srcset=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0196.jpg 800w, https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0196-300x200.jpg 300w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>Une soir\u00e9e t\u00e9l\u00e9 plus tard, j&rsquo;ai mes cinq sondes :<a href=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0198.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-343\" src=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0198.jpg\" alt=\"IMG_0198\" width=\"800\" height=\"534\" srcset=\"https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0198.jpg 800w, https:\/\/biere.alereno.org\/wp-content\/uploads\/2014\/12\/IMG_0198-300x200.jpg 300w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>Ces cinq sondes se glisseront dans<a href=\"http:\/\/en.wikipedia.org\/wiki\/Compression_fitting\"> les raccords \u00e0\u00a0compression<\/a> que j&rsquo;ai fait fabriquer en Chine. 3 serviront \u00e0 mesurer les temp\u00e9ratures internes des cuves, et 2 serviront \u00e0 mesurer la temp\u00e9rature des flux de liquide dans la cuve d&rsquo;eau chaude et dans la cuve de brassage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>J&rsquo;ai besoin de 5 sondes. J&rsquo;ai choisi de les fabriquer \u00e0 partir d&rsquo;un petit composant de chez Maxim : le DS18B20. Il est archi-connu et pr\u00e9sente les caract\u00e9ristiques que je recherche : pas cher (environ 1 dollar pi\u00e8ce si on les ach\u00e8te par\u00a010) pr\u00e9cis entre 0\u00b0C et 110\u00b0C, et relativement simple \u00e0 mettre en oeuvre &hellip; <a href=\"https:\/\/biere.alereno.org\/?p=338\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Construction des sondes de temp\u00e9rature<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/biere.alereno.org\/index.php?rest_route=\/wp\/v2\/posts\/338"}],"collection":[{"href":"https:\/\/biere.alereno.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/biere.alereno.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/biere.alereno.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/biere.alereno.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=338"}],"version-history":[{"count":6,"href":"https:\/\/biere.alereno.org\/index.php?rest_route=\/wp\/v2\/posts\/338\/revisions"}],"predecessor-version":[{"id":350,"href":"https:\/\/biere.alereno.org\/index.php?rest_route=\/wp\/v2\/posts\/338\/revisions\/350"}],"wp:attachment":[{"href":"https:\/\/biere.alereno.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=338"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/biere.alereno.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=338"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/biere.alereno.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}