{"id":3653,"date":"2025-07-18T08:28:00","date_gmt":"2025-07-18T00:28:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3653"},"modified":"2025-07-17T19:54:51","modified_gmt":"2025-07-17T11:54:51","slug":"how-to-test-resistors-on-a-pcb-board","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/","title":{"rendered":"Comment tester les r\u00e9sistances sur un circuit imprim\u00e9 ?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#1_Safety_Preparations\" >1. Pr\u00e9paratifs de s\u00e9curit\u00e9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#2_Multimeter_Selection\" >2. S\u00e9lection du multim\u00e8tre<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Recommended_Digital_Multimeter_Specifications\" >Sp\u00e9cifications recommand\u00e9es pour les multim\u00e8tres num\u00e9riques<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Range_Selection_Guidelines\" >Lignes directrices pour la s\u00e9lection des gammes<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#3_Key_Measurement_Techniques\" >3. Principales techniques de mesure<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Offline_Measurement_Recommended_Method\" >Mesure hors ligne (m\u00e9thode recommand\u00e9e)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Online_Measurement_Emergency_Method\" >Mesure en ligne (m\u00e9thode d'urgence)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#4_Error_Analysis_and_Quality_Control\" >4. Analyse des erreurs et contr\u00f4le de la qualit\u00e9<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Common_Error_Sources\" >Sources d'erreurs courantes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Quality_Assessment_Standards\" >Normes d'\u00e9valuation de la qualit\u00e9<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#5_Advanced_Application_Techniques\" >5. Techniques d'application avanc\u00e9es<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Precision_Resistor_Measurement\" >Mesure de pr\u00e9cision des r\u00e9sistances<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Special_Resistor_Testing\" >Tests de r\u00e9sistances sp\u00e9ciales<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-test-resistors-on-a-pcb-board\/#Batch_Testing_Solutions\" >Solutions de test par lots<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Safety_Preparations\"><\/span>1. Pr\u00e9paratifs de s\u00e9curit\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h2><p>La s\u00e9curit\u00e9 est toujours la priorit\u00e9 absolue lorsque l'on effectue des mesures \u00e9lectroniques. Pour les PCB <a href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/the-resistor\/\">r\u00e9sistance<\/a> vous devez proc\u00e9der \u00e0 des tests :<\/p><ul class=\"wp-block-list\"><li><strong>D\u00e9connexion compl\u00e8te de l'alimentation<\/strong>: D\u00e9brancher toutes les sources d'alimentation, y compris les piles et les adaptateurs \u00e9lectriques.<\/li>\n\n<li><strong>Traitement de sortie<\/strong>: D\u00e9charger les condensateurs \u00e0 haute capacit\u00e9 (utiliser une r\u00e9sistance de 10k\u03a9\/5W pour la d\u00e9charge)<\/li>\n\n<li><strong>Protection contre les d\u00e9charges \u00e9lectrostatiques (ESD)<\/strong>: Porter un bracelet antistatique et utiliser un tapis antistatique sur l'\u00e9tabli.<\/li>\n\n<li><strong>Contr\u00f4le de l'environnement<\/strong>: Veiller \u00e0 ce que l'espace de travail soit sec, bien ventil\u00e9 et qu'il conserve une humidit\u00e9 relative de 30 \u00e0 70%.<\/li><\/ul><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Conseil de pro : Pour les circuits imprim\u00e9s \u00e0 haute tension (&gt;60V), attendez au moins 5 minutes pour assurer une d\u00e9charge compl\u00e8te avant de proc\u00e9der.<\/p><\/blockquote><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors.jpg\" alt=\"r\u00e9sistances de test\" class=\"wp-image-3654\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Multimeter_Selection\"><\/span>2. S\u00e9lection du multim\u00e8tre<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Le choix du bon instrument de mesure a un impact direct sur la pr\u00e9cision des r\u00e9sultats des tests :<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Recommended_Digital_Multimeter_Specifications\"><\/span>Sp\u00e9cifications recommand\u00e9es pour les multim\u00e8tres num\u00e9riques<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Exigences de base<\/strong>:<\/li>\n\n<li>Pr\u00e9cision : Au moins \u00b10,5% + 3 chiffres<\/li>\n\n<li>Gamme de r\u00e9sistance : 200\u03a9 - 20M\u03a9<\/li>\n\n<li>Courant de test : &lt;1mA (pour \u00e9viter d&#039;endommager les composants sensibles)<\/li>\n\n<li><strong>Options avanc\u00e9es<\/strong>:<\/li>\n\n<li>Mesure Kelvin \u00e0 4 fils (\u00e9limine les effets de la r\u00e9sistance des fils)<\/li>\n\n<li>Capacit\u00e9 d'extension automatique<\/li>\n\n<li>Fonction d'enregistrement des donn\u00e9es<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Range_Selection_Guidelines\"><\/span>Lignes directrices pour la s\u00e9lection des gammes<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>R\u00e9sistance nominale<\/th><th>Fourchette recommand\u00e9e<\/th><th>R\u00e9solution<\/th><\/tr><\/thead><tbody><tr><td>&lt;200\u03a9<\/td><td>Plage de 200\u03a9<\/td><td>0.1\u03a9<\/td><\/tr><tr><td>200\u03a9-2k\u03a9<\/td><td>Gamme 2k\u03a9<\/td><td>1\u03a9<\/td><\/tr><tr><td>2k\u03a9-20k\u03a9<\/td><td>Gamme 20k\u03a9<\/td><td>10\u03a9<\/td><\/tr><tr><td>&gt;20k\u03a9<\/td><td>Gamme automatique<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-3.jpg\" alt=\"r\u00e9sistances de test\" class=\"wp-image-3655\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-3.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-3-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-3-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Key_Measurement_Techniques\"><\/span>3. Principales techniques de mesure<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Offline_Measurement_Recommended_Method\"><\/span>Mesure hors ligne (m\u00e9thode recommand\u00e9e)<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Isolation des composants<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Utiliser une pompe \u00e0 dessouder ou un pistolet \u00e0 air chaud pour retirer une extr\u00e9mit\u00e9 de la r\u00e9sistance.<\/li>\n\n<li>Pour les r\u00e9sistances CMS, soulever d\u00e9licatement une extr\u00e9mit\u00e9 \u00e0 l'aide d'une pince \u00e0 \u00e9piler.<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>M\u00e9thode de contact<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>R\u00e9sistances \u00e0 trous : Placer les sondes perpendiculairement aux fils<\/li>\n\n<li>R\u00e9sistances CMS : Utiliser des sondes \u00e0 pointe fine (diam\u00e8tre id\u00e9al de 0,5 mm).<\/li>\n\n<li>Composants miniatures : Il est recommand\u00e9 d'utiliser des crochets de test<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Interpr\u00e9tation de la lecture<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Valeur normale : Dans la limite de \u00b1 tol\u00e9rance de la valeur nominale<\/li>\n\n<li>Conditions anormales :<ul class=\"wp-block-list\"><li>Affichage \"OL\" : D\u00e9faut de circuit ouvert<\/li>\n\n<li>Proche de 0\u03a9 : D\u00e9faut de court-circuit<\/li>\n\n<li>Fluctuation instable : Mauvais contact interne<\/li><\/ul><\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Online_Measurement_Emergency_Method\"><\/span>Mesure en ligne (m\u00e9thode d'urgence)<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Analyse des circuits \u00e9quivalents<\/strong>:<br>Dessinez un sch\u00e9ma partiel du circuit, calculez la r\u00e9sistance \u00e9quivalente parall\u00e8le.<\/li>\n\n<li><strong>M\u00e9thode de la chute de tension<\/strong>:<br>Mesurer la tension (V) aux bornes de la r\u00e9sistance, utiliser le courant connu (I) pour calculer R=V\/I<\/li>\n\n<li><strong>M\u00e9thode de comparaison<\/strong>:<br>Mesurer des r\u00e9sistances identiques dans le m\u00eame circuit comme r\u00e9f\u00e9rence<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Error_Analysis_and_Quality_Control\"><\/span>4. Analyse des erreurs et contr\u00f4le de la qualit\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Error_Sources\"><\/span>Sources d'erreurs courantes<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Type d'erreur<\/th><th>Niveau d'impact<\/th><th>Solution<\/th><\/tr><\/thead><tbody><tr><td>R\u00e9sistance des contacts<\/td><td>\u00b1(1-10\u03a9)<\/td><td>Utiliser une mesure \u00e0 4 fils<\/td><\/tr><tr><td>D\u00e9rive de la temp\u00e9rature<\/td><td>\u00b10,4%\/\u00b0C<\/td><td>Enregistrer la temp\u00e9rature ambiante et la compenser<\/td><\/tr><tr><td>Interf\u00e9rence EMI<\/td><td>Erreur al\u00e9atoire<\/td><td>Utiliser des cordons de mesure blind\u00e9s<\/td><\/tr><tr><td>Oxydation de la sonde<\/td><td>+5% erreur<\/td><td>Nettoyer r\u00e9guli\u00e8rement les pointes de la sonde<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quality_Assessment_Standards\"><\/span>Normes d'\u00e9valuation de la qualit\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Selon la norme IPC-A-600G :<\/p><ul class=\"wp-block-list\"><li>R\u00e9ussite : Valeur mesur\u00e9e \u00e0 \u00b110% de la valeur nominale (r\u00e9sistances standard)<\/li>\n\n<li>\u00c9chec :<\/li>\n\n<li>R\u00e9sistance sup\u00e9rieure \u00e0 \u00b110%<\/li>\n\n<li>Mesures instables (variation &gt;5%)<\/li>\n\n<li>Dommages physiques (fissures, br\u00fblures, etc.)<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-2.jpg\" alt=\"r\u00e9sistances de test\" class=\"wp-image-3656\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Advanced_Application_Techniques\"><\/span>5. Techniques d'application avanc\u00e9es<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Precision_Resistor_Measurement\"><\/span>Mesure de pr\u00e9cision des r\u00e9sistances<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>M\u00e9thode du courant constant : Utiliser une source de courant de 1mA + un voltm\u00e8tre de haute pr\u00e9cision.<\/li>\n\n<li>Compensation de la temp\u00e9rature : Enregistrer la temp\u00e9rature ambiante, convertir \u00e0 l'aide de la formule R25=Rt\/[1+\u03b1(T-25)].<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Special_Resistor_Testing\"><\/span>Tests de r\u00e9sistances sp\u00e9ciales<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>R\u00e9sistances fusibles<\/strong>: N\u00e9cessite un test de surintensit\u00e9 apr\u00e8s la mesure<\/li>\n\n<li><strong>NTC\/PTC<\/strong>: Mesurer la courbe de r\u00e9sistance \u00e0 diff\u00e9rentes temp\u00e9ratures<\/li>\n\n<li><strong>R\u00e9sistances haute tension<\/strong>: Utiliser un testeur d'isolation (500V DC)<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Batch_Testing_Solutions\"><\/span>Solutions de test par lots<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Dispositif d'essai automatis\u00e9 + scanner multiplex<\/li>\n\n<li>Analyse statistique des valeurs de CPK (exigence &gt;1,33)<\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>Une m\u00e9thode professionnelle pour tester les r\u00e9sistances de circuits imprim\u00e9s \u00e0 l'aide d'un multim\u00e8tre, couvrant les normes de s\u00e9curit\u00e9, la s\u00e9lection des instruments et les \u00e9tapes de mesure sp\u00e9cifiques. Cette analyse d\u00e9taill\u00e9e comprend les techniques de mesure hors ligne\/en ligne, l'analyse des sources d'erreur et les crit\u00e8res d'\u00e9valuation de la qualit\u00e9 conform\u00e9ment aux normes IPC, ainsi que les techniques de mesure des r\u00e9sistances de pr\u00e9cision et les solutions de test par lots.<\/p>","protected":false},"author":1,"featured_media":3657,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[109],"tags":[325,324],"class_list":["post-3653","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-resistors","tag-test-resistors"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to test resistors on a PCB board? - Topfastpcb<\/title>\n<meta name=\"description\" content=\"PCB Resistor Testing Methods: Multimeter Measurement, Error Analysis Methods, and Quality Control Standards. 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