{"id":9347,"date":"2024-03-29T14:31:47","date_gmt":"2024-03-29T06:31:47","guid":{"rendered":"https:\/\/shchimay.com\/?p=9347"},"modified":"2024-03-31T00:14:43","modified_gmt":"2024-03-30T16:14:43","slug":"electrical-resistivity-metals","status":"publish","type":"post","link":"https:\/\/shchimay.com\/fr\/electrical-resistivity-metals\/","title":{"rendered":"m\u00e9taux de r\u00e9sistivit\u00e9 \u00e9lectrique"},"content":{"rendered":"<p>&#8220;Conduire le pouvoir \u00e0 travers la r\u00e9sistance.&#8221;<\/p>\n<h1 id=\"understanding-the-concept-of-electrical-resistivity-in-metals-wpaicgheading\">Comprendre le concept de r\u00e9sistivit\u00e9 \u00e9lectrique dans les m\u00e9taux<\/h1>\n<p>\nLa r\u00e9sistivit\u00e9 \u00e9lectrique est une propri\u00e9t\u00e9 fondamentale des m\u00e9taux qui joue un r\u00f4le crucial dans la d\u00e9termination de leur conductivit\u00e9. En termes simples, la r\u00e9sistivit\u00e9 \u00e9lectrique est une mesure de la force avec laquelle un mat\u00e9riau s&#8217;oppose au flux de courant \u00e9lectrique. Les m\u00e9taux sont connus pour leur conductivit\u00e9 \u00e9lev\u00e9e, mais ils pr\u00e9sentent n\u00e9anmoins un certain niveau de r\u00e9sistance au flux d&#8217;\u00e9lectricit\u00e9 en raison de leur structure atomique.<\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"Push Fit In-Line Stem POM Quick Connector\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/jnPZ_st5nnE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p><\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"304 Stainless Steel 4 20mA Pressure Transmitters For Liquid Gas And Steam\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/yhe_bvTxDyA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>Le concept de r\u00e9sistivit\u00e9 \u00e9lectrique peut \u00eatre compris en consid\u00e9rant le comportement des \u00e9lectrons dans un m\u00e9tal. Dans un m\u00e9tal, les \u00e9lectrons sont libres de se d\u00e9placer dans le r\u00e9seau atomique et portent une charge \u00e9lectrique. Cependant, ils rencontrent encore des obstacles sous forme de vibrations du r\u00e9seau et d\u2019impuret\u00e9s qui entravent leur mouvement. Ces obstacles cr\u00e9ent une r\u00e9sistance \u00e0 la circulation du courant, qui est quantifi\u00e9e par la r\u00e9sistivit\u00e9 \u00e9lectrique du m\u00e9tal.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/shchimay.com\/wp-content\/uploads\/2024\/03\/ROS-2015-RO\u7a0b\u5e8f\u63a7\u5236\u56684.png\" alt=\"alt-502\" class=\"wp-image-502\" id=\"i502\" \/><\/p>\n<p>La r\u00e9sistivit\u00e9 \u00e9lectrique d&#8217;un m\u00e9tal est g\u00e9n\u00e9ralement mesur\u00e9e en unit\u00e9s d&#8217;ohmm\u00e8tres (\u03a9m). Elle est influenc\u00e9e par divers facteurs, notamment la temp\u00e9rature du m\u00e9tal, sa puret\u00e9 et sa structure cristalline. En g\u00e9n\u00e9ral, les m\u00e9taux ayant une r\u00e9sistivit\u00e9 \u00e9lectrique plus \u00e9lev\u00e9e auront une conductivit\u00e9 plus faible, car ils offrent plus de r\u00e9sistance au flux de courant.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>Mod\u00e8le de produit<\/td>\n<td colspan=\"2\">MFC-8800<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Port de communication<\/td>\n<td colspan=\"2\">Le port RS485 du protocole Modbus RTU du canal esclave de liaison montante est connect\u00e9 au DTU et au DCS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Le port RS485 du canal ma\u00eetre de liaison descendante du protocole Modbus RTU est connect\u00e9 au terminal d&#8217;acquisition de donn\u00e9es<\/td>\n<\/tr>\n<tr>\n<td>4~20\u00a0mA\u00a0de sortie<\/td>\n<td colspan=\"2\">Type \u00e0 deux fils \u00e0 1 canal\u00a0R\u00e9sistance de boucle maximale\u00a0400\u00a0\u03a9<\/td>\n<\/tr>\n<tr>\n<td>4 ~ 20 mA<\/td>\n<td colspan=\"2\">\u00a02 canaux, type bifilaire\uff08\u00a0alimentation d&#8217;initiative\uff09<\/td>\n<\/tr>\n<tr>\n<td>Entr\u00e9e\u00a0DI<\/td>\n<td colspan=\"2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Interrupteur logique d&#8217;isolation photo\u00e9lectrique \u00e0 2\u00a0canaux<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">Sortie DO<\/td>\n<td>Relais \u00e0 3\u00a0canaux<\/td>\n<td>1\u00a0SPDT \u00a0AC220V\uff1b 3A(MAX)<\/td>\n<\/tr>\n<tr>\n<td>\uff08uniquement pour le signal d&#8217;entra\u00eenement\uff09<\/td>\n<td>2\u00a0SPST \u00a0AC220V\uff1b 3A(MAX)<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">1\u00a0canal\u00a0\u00a0Commutateur photo\u00e9lectrique\u00a0\u00a0\u00a0<\/td>\n<td>Impulsion\/fr\u00e9quence proportionnelle<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Capacit\u00e9 de charge\uff1a100mA\/DC30V<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Acquisition de donn\u00e9es<\/td>\n<td colspan=\"2\">Collecte d&#8217;acquisition de donn\u00e9es\uff0cavec alimentation du capteur DC24V \u00e0 3\u00a0canaux\u00a0<\/td>\n<\/tr>\n<tr>\n<td>Mode d&#8217;affichage<\/td>\n<td colspan=\"2\">\u00c9cran tactile LCD color\u00e9\u00a03,5\u00a0ou\u00a04\u00a0\u201d\uff09\u00a0<\/td>\n<\/tr>\n<tr>\n<td>Alimentation<\/td>\n<td colspan=\"2\">Large plage de puissance \uff1a\uff0812-24\uff09V<\/td>\n<\/tr>\n<tr>\n<td>Consommation<\/td>\n<td colspan=\"2\">5W<\/td>\n<\/tr>\n<tr>\n<td>Exigences environnementales<\/td>\n<td colspan=\"2\">Temp\u00e9rature de l&#8217;environnement\uff1a\uff085~45\uff09\u2103\uff1b \u00a0humidit\u00e9 relative\uff1a\u226490%\u3002<\/td>\n<\/tr>\n<tr>\n<td>Dimension du trou<\/td>\n<td colspan=\"2\">\uff0891\u00d791\uff09\u00a0mm\u00a0dimension du trou\uff1bdimension du panneau\uff08100*100\uff09mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>Contr\u00f4leur de programme d&#8217;osmose inverse \u00e0 deux \u00e9tages ROS-2210<\/p>\n<p>\n<img decoding=\"async\" src=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/EC-8851-\u9ad8\u7cbe\u5ea6\u7535\u5bfc\u7387\u4eea3-1.png\" alt=\"alt-507\" class=\"wp-image-507\" id=\"i507\" \/><br \/>\n\u3000<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td colspan=\"2\">1.r\u00e9servoir d&#8217;eau de source d&#8217;eau sans protection de l&#8217;eau<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>2. Niveau bas du r\u00e9servoir pur<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>3.Niveau \u00e9lev\u00e9 du r\u00e9servoir pur<\/td>\n<\/tr>\n<tr>\n<td>Signal d&#8217;acquisition<\/td>\n<td>4.protection basse pression<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>5.protection haute pression<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>6.r\u00e9g\u00e9n\u00e9ration avant traitement<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>7. contr\u00f4le manuel\/automatique<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>1.vanne d&#8217;entr\u00e9e d&#8217;eau<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>2. robinet de chasse d&#8217;eau<\/td>\n<\/tr>\n<tr>\n<td>Contr\u00f4le de sortie<\/td>\n<td>3. pompe basse pression<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>4. pompe haute pression<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>5. conductivit\u00e9 par rapport \u00e0 la vanne standard<\/td>\n<\/tr>\n<tr>\n<td>Plage de mesure<\/td>\n<td>0~2000uS<\/td>\n<\/tr>\n<tr>\n<td>Plage de temp\u00e9rature<\/td>\n<td>Bas\u00e9 sur 25\u00a0\u2103, compensation automatique de la temp\u00e9rature<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>AC220v\u00b110% 50\/60Hz<\/td>\n<\/tr>\n<tr>\n<td>Alimentation<\/td>\n<td>AC110v\u00b110% 50\/60Hz<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>DC24v\u00b110%<\/td>\n<\/tr>\n<tr>\n<td>Temp\u00e9rature moyenne<\/td>\n<td>60\u2103<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>120\u2103<\/td>\n<\/tr>\n<tr>\n<td>Sortie de contr\u00f4le<\/td>\n<td>5A\/250V CA<\/td>\n<\/tr>\n<tr>\n<td>Humidit\u00e9 relative<\/td>\n<td>\u226485%<\/td>\n<\/tr>\n<tr>\n<td>Temp\u00e9rature ambiante<\/td>\n<td>0~50\u2103<\/td>\n<\/tr>\n<tr>\n<td>Taille du trou<\/td>\n<td>92*92mm (haut*large)<\/td>\n<\/tr>\n<tr>\n<td>M\u00e9thode d&#8217;installation<\/td>\n<td>L&#8217;int\u00e9gr\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Constante de cellule<\/td>\n<td>1,0cm-\u00b9*2<\/td>\n<\/tr>\n<tr>\n<td>Utilisation de l&#8217;affichage<\/td>\n<td>Affichage num\u00e9rique\u00a0: valeur de conductivit\u00e9\/valeur de temp\u00e9rature\u00a0; Organigramme du processus RO de prise en charge<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>1. Constante d&#8217;\u00e9lectrode et r\u00e9glage du type<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>2.Param\u00e8tre de d\u00e9passement de conductivit\u00e9<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>3. Param\u00e8tres de rin\u00e7age \u00e0 intervalles de * heures<\/td>\n<\/tr>\n<tr>\n<td>Fonction principale<\/td>\n<td>4.R\u00e9glage du temps de rin\u00e7age<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>5.R\u00e9glage du temps de fonctionnement de la membrane RO<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>6. Mise sous tension du fonctionnement automatique\/r\u00e9glage d&#8217;arr\u00eat<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>7.Adresse postale, r\u00e9glage du d\u00e9bit en bauds<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>8.Interface de communication RS-485 en option<\/td>\n<\/tr>\n<tr>\n<td>La structure cristalline d&#8217;un m\u00e9tal peut \u00e9galement influencer sa r\u00e9sistivit\u00e9 \u00e9lectrique. Les m\u00e9taux ayant un r\u00e9seau cristallin r\u00e9gulier et ordonn\u00e9 ont tendance \u00e0 avoir une r\u00e9sistivit\u00e9 plus faible que ceux ayant une structure plus d\u00e9sordonn\u00e9e. En effet, un r\u00e9seau bien organis\u00e9 permet aux \u00e9lectrons de se d\u00e9placer plus librement, r\u00e9duisant ainsi la r\u00e9sistance globale au flux de courant.<\/p>\n<p><div style=\"width: 640px;\" class=\"wp-video\"><!--[if lt IE 9]><script>document.createElement('video');<\/script><![endif]-->\n<video class=\"wp-video-shortcode\" id=\"video-9347-1\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-%20Alimentation%20d&#038;?_=1#039;usine-Single-Stage-Double-Channels-RO-Controller.mp4\" \/><a href=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-%20Alimentation%20d&#039;usine-Single-Stage-Double-Channels-RO-Controller.mp4\">http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-%20Alimentation%20d&#039;usine-Single-Stage-Double-Channels-RO-Controller.mp4<\/a><\/video><\/div>En r\u00e9sum\u00e9, la r\u00e9sistivit\u00e9 \u00e9lectrique est une propri\u00e9t\u00e9 cruciale des m\u00e9taux qui d\u00e9termine leur conductivit\u00e9 et leur ad\u00e9quation \u00e0 diverses applications. Elle est influenc\u00e9e par des facteurs tels que la temp\u00e9rature, la puret\u00e9 et la structure cristalline, qui affectent tous la capacit\u00e9 des \u00e9lectrons \u00e0 se d\u00e9placer \u00e0 travers le mat\u00e9riau. Comprendre le concept de r\u00e9sistivit\u00e9 \u00e9lectrique dans les m\u00e9taux est essentiel pour concevoir des syst\u00e8mes \u00e9lectriques efficaces et s\u00e9lectionner les mat\u00e9riaux adapt\u00e9s \u00e0 des applications sp\u00e9cifiques. En prenant en compte ces facteurs, les ing\u00e9nieurs et les scientifiques peuvent optimiser les performances des composants m\u00e9talliques et assurer un transport fiable de l&#8217;\u00e9lectricit\u00e9.<\/td>\n<td>8.Optional RS-485 communication interface<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>The crystal structure of a metal can also influence its electrical resistivity. Metals with a regular, ordered crystal lattice tend to have lower resistivity compared to those with a more disordered structure. This is because a well-organized lattice allows electrons to move more freely, reducing the overall resistance to current flow.<\/p>\n<p><div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-9347-2\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-Factory-supply-Single-Stage-Double-Channels-RO-Controller.mp4?_=2\" \/><a href=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-Factory-supply-Single-Stage-Double-Channels-RO-Controller.mp4\">http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-Factory-supply-Single-Stage-Double-Channels-RO-Controller.mp4<\/a><\/video><\/div>In summary, electrical resistivity is a crucial property of metals that determines their conductivity and suitability for various applications. It is influenced by factors such as temperature, purity, and crystal structure, all of which affect the ability of electrons to move through the material. Understanding the concept of electrical resistivity in metals is essential for designing efficient electrical systems and selecting the right materials for specific applications. By considering these factors, engineers and scientists can optimize the performance of metal components and ensure the reliable transmission of electricity.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Conduire le pouvoir \u00e0 travers la r\u00e9sistance.&#8221; Comprendre le concept de r\u00e9sistivit\u00e9 \u00e9lectrique dans les m\u00e9taux La r\u00e9sistivit\u00e9 \u00e9lectrique est une propri\u00e9t\u00e9 fondamentale des m\u00e9taux qui joue un r\u00f4le crucial dans la d\u00e9termination de leur conductivit\u00e9. En termes simples, la r\u00e9sistivit\u00e9 \u00e9lectrique est une mesure de la force avec laquelle un mat\u00e9riau s&#8217;oppose au flux&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3212,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"categories":[200],"tags":[],"translation":{"provider":"WPGlobus","version":"2.12.0","language":"fr","enabled_languages":["en","zh","es","de","fr","ru","pt","ar","ja","ko","it","id","hi","th","vi","tr"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"zh":{"title":true,"content":true,"excerpt":false},"es":{"title":true,"content":true,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ru":{"title":true,"content":true,"excerpt":false},"pt":{"title":false,"content":false,"excerpt":false},"ar":{"title":false,"content":false,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"ko":{"title":true,"content":true,"excerpt":false},"it":{"title":true,"content":true,"excerpt":false},"id":{"title":false,"content":false,"excerpt":false},"hi":{"title":false,"content":false,"excerpt":false},"th":{"title":true,"content":true,"excerpt":false},"vi":{"title":true,"content":true,"excerpt":false},"tr":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/posts\/9347"}],"collection":[{"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/comments?post=9347"}],"version-history":[{"count":13,"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/posts\/9347\/revisions"}],"predecessor-version":[{"id":9565,"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/posts\/9347\/revisions\/9565"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/media\/3212"}],"wp:attachment":[{"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/media?parent=9347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/categories?post=9347"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shchimay.com\/fr\/wp-json\/wp\/v2\/tags?post=9347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}