{"id":19245,"date":"2026-06-30T08:26:11","date_gmt":"2026-06-30T06:26:11","guid":{"rendered":"https:\/\/roder.it\/controles\/dimension-et-geometrie\/"},"modified":"2026-11-06T19:51:01","modified_gmt":"2026-11-06T18:51:01","slug":"dimension-et-geometrie","status":"publish","type":"page","link":"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/","title":{"rendered":"Longueur et largeur"},"content":{"rendered":"\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-17c5c485 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:46%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"638\" height=\"599\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2019\/05\/Untitled.png\" alt=\"contr&#xF4;le dimensionnel de l'entraxe et de la position des composants &#xE9;lectroniques avec des syst&#xE8;mes de vision industrielle\" class=\"has-border-color wp-image-558\" style=\"border-color:#000000;border-width:1px;border-radius:10px\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2019\/05\/Untitled.png 638w, https:\/\/roder.it\/wp-content\/uploads\/2019\/05\/Untitled-300x282.png 300w\" sizes=\"auto, (max-width: 638px) 100vw, 638px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:54%\">\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-51b2f3cb wp-block-group-is-layout-constrained\" style=\"border-radius:15px;background-color:#eef3f6;padding-top:28px;padding-right:30px;padding-bottom:28px;padding-left:30px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#225f78;font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase\">RODER \u00b7 Contr\u00f4les \u00b7 Dimensions et g\u00e9om\u00e9trie<\/p>\n\n\n\n<h2 class=\"wp-block-heading roder-hero-title has-ti-accent-color has-text-color\">Longueur et largeur<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La <strong>dimension<\/strong> et la <strong>g\u00e9om\u00e9trie<\/strong> comptent parmi les grandeurs fondamentales du contr\u00f4le qualit\u00e9 industriel. Les mesurer correctement, c&rsquo;est garantir qu&rsquo;un produit respecte les tol\u00e9rances, qu&rsquo;il est conforme aux sp\u00e9cifications et qu&rsquo;il maintient des performances constantes. Dans cette section, consacr\u00e9e aux <em>Contr\u00f4les<\/em>, nous approfondissons la grandeur physique elle-m\u00eame et les m\u00e9thodes permettant de la mesurer, en accordant une attention particuli\u00e8re \u00e0 la mesure de la <strong>longueur de mat\u00e9riaux en mouvement<\/strong> au moyen de <a href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/\">v\u00e9locim\u00e8tres et codeurs optiques<\/a>.  <\/p>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-32518b43 wp-block-group-is-layout-constrained\" style=\"border-radius:12px;background-color:#eef3f6;padding-top:16px;padding-right:22px;padding-bottom:16px;padding-left:22px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#225f78;font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase\">Sur cette page<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-4ab3db7f wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list is-style-checkbox has-link-color wp-elements-1\">\n<li><a href=\"#a-cosa-serve\">\u00c0 quoi sert la mesure : longueur et largeur<\/a><\/li>\n\n\n<li><a href=\"#che-cosa-si-intende-per-dimensione-e-geometria\">Ce que l&rsquo;on entend par dimension et g\u00e9om\u00e9trie<\/a><\/li>\n\n\n<li><a href=\"#la-sfida-della-misura-su-materiale-in-movimento\">Le d\u00e9fi de la mesure sur mat\u00e9riau en mouvement<\/a><\/li>\n\n\n<li><a href=\"#approfondimento-la-lunghezza-in-continuo\">Approfondissement : la longueur en continu<\/a><\/li>\n\n\n<li><a href=\"#perche-la-misura-ottica-della-dimensione\">Pourquoi la mesure optique de la dimension<\/a><\/li>\n\n\n<li><a href=\"#dalla-grandezza-alla-soluzione\">De la grandeur \u00e0 la solution<\/a><\/li>\n\n\n<li><a href=\"#tolleranze-e-valore-contrattuale-della-misura\">Tol\u00e9rances et valeur contractuelle de la mesure<\/a><\/li>\n\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list is-style-checkbox has-link-color wp-elements-2\">\n<li><a href=\"#misura-statica-e-misura-in-linea\">Mesure statique et mesure en ligne<\/a><\/li>\n\n\n<li><a href=\"#geometria-e-controllo-di-forma\">G\u00e9om\u00e9trie et contr\u00f4le de forme<\/a><\/li>\n\n\n<li><a href=\"#standardizzare-la-misura-dimensionale\">Normaliser la mesure dimensionnelle<\/a><\/li>\n\n\n<li><a href=\"#il-ruolo-del-supporto-tecnico\">Le r\u00f4le du support technique<\/a><\/li>\n\n\n<li><a href=\"#domande-frequenti\">Questions fr\u00e9quentes<\/a><\/li>\n\n\n<li><a href=\"#prodotti-collegati\">Produits associ\u00e9s<\/a><\/li>\n\n\n<li><a href=\"#in-questa-sezione\">Les pages de cette section<\/a><\/li>\n\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"a-cosa-serve\">\u00c0 quoi sert la mesure : longueur et largeur <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<p class=\"wp-block-paragraph\">\u00c0 la diff\u00e9rence des sections <a href=\"https:\/\/roder.it\/?page_id=14997\">Technologies<\/a> (th\u00e9orie de fonctionnement) et <a href=\"https:\/\/roder.it\/?page_id=14994\">Applications et solutions<\/a> (cas pratiques), l&rsquo;attention porte ici sur la <strong>grandeur mesur\u00e9e<\/strong> : ce qu&rsquo;elle repr\u00e9sente, comment elle se d\u00e9finit et quels instruments la d\u00e9terminent avec exactitude.<\/p>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"che-cosa-si-intende-per-dimensione-e-geometria\">Ce que l&rsquo;on entend par dimension et g\u00e9om\u00e9trie <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">La <strong>dimension<\/strong> exprime l&rsquo;\u00e9tendue d&rsquo;un objet selon une direction : longueur, largeur, \u00e9paisseur, diam\u00e8tre. La <strong>g\u00e9om\u00e9trie<\/strong>, en revanche, d\u00e9crit la forme et les relations spatiales entre les \u00e9l\u00e9ments : rectitude, plan\u00e9it\u00e9, ovalisation, profil. Dans le contr\u00f4le industriel, toutes deux sont soumises \u00e0 des tol\u00e9rances, c&rsquo;est-\u00e0-dire \u00e0 des \u00e9carts admis par rapport \u00e0 une valeur nominale. La qualit\u00e9 d&rsquo;un produit d\u00e9pend par cons\u00e9quent de la capacit\u00e9 \u00e0 mesurer ces grandeurs de mani\u00e8re exacte et r\u00e9p\u00e9table, aussi bien sur des pi\u00e8ces \u00e0 l&rsquo;arr\u00eat que, surtout, sur des mat\u00e9riaux en production continue.   <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Parmi les dimensions, la <strong>longueur<\/strong> joue un r\u00f4le particulier dans les processus continus : bandes, fils, tubes, panneaux et profil\u00e9s sont produits, coup\u00e9s \u00e0 la longueur voulue et compt\u00e9s en m\u00e8tres. Mesurer la longueur d&rsquo;un mat\u00e9riau qui d\u00e9file exige toutefois une approche diff\u00e9rente de la mesure statique. <\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"la-sfida-della-misura-su-materiale-in-movimento\">Le d\u00e9fi de la mesure sur mat\u00e9riau en mouvement <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Lorsque le mat\u00e9riau est en mouvement, la mesure de la longueur s&rsquo;obtient en int\u00e9grant dans le temps la <strong>vitesse<\/strong> du mat\u00e9riau. Historiquement, cela se faisait au moyen de roues de mesure \u00e0 contact, qui souffrent cependant de <strong>glissement<\/strong> et d&rsquo;<strong>usure<\/strong> : deux ph\u00e9nom\u00e8nes qui introduisent des erreurs variables dans le temps. Or, dans les processus industriels modernes, la pr\u00e9cision de la longueur constitue souvent une exigence contractuelle. C&rsquo;est la raison pour laquelle la mesure optique sans contact s&rsquo;est impos\u00e9e.   <\/p>\n\n\n\n<figure class=\"wp-block-image alignleft size-large is-resized has-custom-border\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-schema_principio_funzionamento_vlm500-web_image-1200x1200-1.webp\" alt=\"Principe de mesure optique de la longueur sur mat&#xE9;riau en mouvement\" class=\"has-border-color wp-image-0\" style=\"border-color:#000000;border-width:1px;border-radius:10px;aspect-ratio:4\/3;object-fit:contain;width:300px\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Un <strong>v\u00e9locim\u00e8tre optique<\/strong> mesure la vitesse du mat\u00e9riau en l&rsquo;\u00e9clairant avec une lumi\u00e8re LED et en analysant la lumi\u00e8re r\u00e9fl\u00e9chie ; en int\u00e9grant la vitesse, on obtient la longueur, sans aucun contact. L&rsquo;exactitude reste ainsi stable dans le temps et la mesure est \u00e9galement valable sur des mat\u00e9riaux chauds, minces ou d\u00e9licats. <\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"approfondimento-la-lunghezza-in-continuo\">Approfondissement : la longueur en continu <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">La mesure de la longueur de mat\u00e9riaux en production continue est trait\u00e9e en d\u00e9tail sur la page <a href=\"https:\/\/roder.it\/controlli\/dimensione-e-geometria\/lunghezza-in-continuo\/\">Longueur en continu<\/a>, o\u00f9 nous analysons l&rsquo;exactitude, la r\u00e9solution et l&rsquo;int\u00e9gration du signal. C&rsquo;est la grandeur que les <a href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/velocimetri-ottici-serie-vlm500\/\">v\u00e9locim\u00e8tres optiques VLM500<\/a> et les <a href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/velocimetri-ottici-serie-vlm60\/\">codeurs optiques VLM60<\/a> d\u00e9terminent avec la plus grande fiabilit\u00e9. <\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"perche-la-misura-ottica-della-dimensione\">Pourquoi la mesure optique de la dimension <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<ul class=\"wp-block-list is-style-checkbox has-link-color wp-elements-3\">\n<li>Mesure de la longueur sans contact, sans glissement ni usure<\/li>\n\n\n<li>Exactitude jusqu&rsquo;\u00e0 &lt; 0,025 % et r\u00e9p\u00e9tabilit\u00e9 constante dans le temps<\/li>\n\n\n<li>Ind\u00e9pendance vis-\u00e0-vis du mat\u00e9riau : m\u00e9tal, papier, bois, plastique, textiles<\/li>\n\n\n<li>Valable \u00e9galement sur des mat\u00e9riaux chauds, minces ou en mouvement rapide<\/li>\n\n\n<li>Sorties codeur compatibles avec les syst\u00e8mes de comptage existants<\/li>\n\n<\/ul>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"dalla-grandezza-alla-soluzione\">De la grandeur \u00e0 la solution <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Une fois la grandeur comprise, l&rsquo;\u00e9tape suivante consiste \u00e0 choisir l&rsquo;instrument. La page <a href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/\">v\u00e9locim\u00e8tres et codeurs optiques<\/a> rassemble la gamme ASTech, tandis que dans <a href=\"https:\/\/roder.it\/?page_id=14994\">Applications et solutions<\/a> nous montrons comment la mesure de la longueur se traduit en coupe \u00e0 la longueur, comptage de m\u00e8tres et synchronisation dans les diff\u00e9rents secteurs. Enfin, pour la th\u00e9orie de la m\u00e9thode optique, nous renvoyons \u00e0 <a href=\"https:\/\/roder.it\/?page_id=15000\">Optique et LASER<\/a>.  <\/p>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-grid wp-container-core-group-is-layout-b251d530 wp-block-group-is-layout-grid\">\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding-top:16px;padding-right:16px;padding-bottom:16px;padding-left:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/velocimetri-ottici-serie-vlm500\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-vlm500_foto_prodotto_assonometria_vista-web_image-510x510-1.webp\" alt=\"V&#xE9;locim&#xE8;tres optiques VLM500\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\">V\u00e9locim\u00e8tres optiques VLM500<\/h3>\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">Vitesses jusqu&rsquo;\u00e0 50 m\/s, incertitude &lt; 0,025 %, filtre spatial CCD.<\/p>\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-font-size\" style=\"font-size:14px\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/velocimetri-ottici-serie-vlm500\/\">D\u00e9couvrir<\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding-top:16px;padding-right:16px;padding-bottom:16px;padding-left:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/velocimetri-ottici-serie-vlm60\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm60-vlm60_foto_prodotto_vista_anteriore-web_image-480x480-1.webp\" alt=\"Encodeur optique VLM60\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\">Encodeur optique VLM60<\/h3>\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">Remplace les roues de mesure, mesure jusqu&rsquo;\u00e0 0 m\/s.<\/p>\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-font-size\" style=\"font-size:14px\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/velocimetri-ottici-serie-vlm60\/\">D\u00e9couvrir<\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding-top:16px;padding-right:16px;padding-bottom:16px;padding-left:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-velocimetri_encoder_ottici_misure_senza-web_image-292x292-1.webp\" alt=\"V&#xE9;locim&#xE8;tres et encodeurs optiques\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\">V\u00e9locim\u00e8tres et encodeurs optiques<\/h3>\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">Panorama de la famille des v\u00e9locim\u00e8tres et codeurs optiques.<\/p>\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-font-size\" style=\"font-size:14px\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/roder.it\/strumenti\/velocimetri-encoder-ottici\/\">D\u00e9couvrir<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"tolleranze-e-valore-contrattuale-della-misura\">Tol\u00e9rances et valeur contractuelle de la mesure <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Dans le contr\u00f4le dimensionnel, la mesure n&rsquo;est pas une fin en soi : elle d\u00e9finit la conformit\u00e9 du produit par rapport \u00e0 une tol\u00e9rance et, souvent, elle poss\u00e8de une valeur contractuelle. Une longueur d\u00e9clar\u00e9e doit correspondre \u00e0 la longueur r\u00e9elle, car la facturation et l&rsquo;acceptation du produit reposent sur elle. C&rsquo;est pourquoi l&rsquo;exactitude et la r\u00e9p\u00e9tabilit\u00e9 de l&rsquo;instrument de mesure sont des exigences incontournables, et la stabilit\u00e9 dans le temps devient aussi importante que la pr\u00e9cision initiale.  <\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"misura-statica-e-misura-in-linea\">Mesure statique et mesure en ligne <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">La dimension d&rsquo;une pi\u00e8ce \u00e0 l&rsquo;arr\u00eat se mesure avec des instruments traditionnels tels que des pieds \u00e0 coulisse ou des syst\u00e8mes optiques de vision. La dimension d&rsquo;un mat\u00e9riau en mouvement exige en revanche une approche dynamique : on mesure la vitesse et on l&rsquo;int\u00e8gre dans le temps. Cette distinction est fondamentale, car elle d\u00e9termine le choix de l&rsquo;instrument. Les v\u00e9locim\u00e8tres optiques sont pr\u00e9cis\u00e9ment con\u00e7us pour la mesure en ligne, l\u00e0 o\u00f9 le mat\u00e9riau d\u00e9file en continu et ne peut pas \u00eatre arr\u00eat\u00e9.   <\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"geometria-e-controllo-di-forma\">G\u00e9om\u00e9trie et contr\u00f4le de forme <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Outre la longueur, la g\u00e9om\u00e9trie comprend des grandeurs telles que la rectitude, la plan\u00e9it\u00e9, l&rsquo;ovalisation et le profil, qui exigent des instruments d\u00e9di\u00e9s comme des scanners et des profilom\u00e8tres. Dans les pages des Contr\u00f4les, ces grandeurs sont trait\u00e9es s\u00e9par\u00e9ment ; dans cette section, l&rsquo;attention reste port\u00e9e sur la dimension lin\u00e9aire et, en particulier, sur la longueur des mat\u00e9riaux en mouvement, l\u00e0 o\u00f9 les v\u00e9locim\u00e8tres optiques offrent le plus grand avantage par rapport aux m\u00e9thodes \u00e0 contact. <\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"standardizzare-la-misura-dimensionale\">Standardiser la mesure dimensionnelle <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Adopter un principe unique de mesure de la longueur sur plusieurs lignes simplifie les pi\u00e8ces de rechange, les proc\u00e9dures et la formation du personnel, en r\u00e9duisant la complexit\u00e9 globale de l&rsquo;usine. La disponibilit\u00e9 de la donn\u00e9e sur des sorties codeur, analogiques et bus de terrain permet en outre d&rsquo;int\u00e9grer la mesure de mani\u00e8re uniforme avec les diff\u00e9rents syst\u00e8mes de commande, du simple compteur au superviseur d&rsquo;atelier, sans devoir g\u00e9rer des interfaces diff\u00e9rentes pour chaque machine. <\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"il-ruolo-del-supporto-tecnico\">Le r\u00f4le du support technique <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Le choix de l&rsquo;instrument, de la distance de travail et des \u00e9ventuels accessoires de protection d\u00e9pend de l&rsquo;application sp\u00e9cifique : type de mat\u00e9riau, vitesse de ligne, g\u00e9om\u00e9trie du passage et conditions ambiantes. C&rsquo;est pourquoi une \u00e9valuation pr\u00e9alable, men\u00e9e avec le support technique RODER, permet de d\u00e9finir la configuration optimale et d&rsquo;obtenir la plus grande exactitude et r\u00e9p\u00e9tabilit\u00e9 dans le temps, en \u00e9vitant des surdimensionnements inutiles. <\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"domande-frequenti\">Questions fr\u00e9quentes <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-dim-1\"><strong class=\"schema-faq-question\">Quelle diff\u00e9rence y a-t-il entre dimension et g\u00e9om\u00e9trie ?<\/strong> <p class=\"schema-faq-answer\">La dimension exprime l&rsquo;\u00e9tendue selon une direction (longueur, largeur, \u00e9paisseur, diam\u00e8tre) ; la g\u00e9om\u00e9trie d\u00e9crit la forme et les relations spatiales telles que la rectitude, la plan\u00e9it\u00e9 et le profil.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-dim-2\"><strong class=\"schema-faq-question\">Comment mesure-t-on la longueur d&rsquo;un mat\u00e9riau en mouvement ?<\/strong> <p class=\"schema-faq-answer\">En int\u00e9grant dans le temps la vitesse du mat\u00e9riau. Un v\u00e9locim\u00e8tre optique mesure la vitesse sans contact et en d\u00e9duit la longueur, sans glissement ni usure. <\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-dim-3\"><strong class=\"schema-faq-question\">Pourquoi ne pas utiliser une roue de mesure ?<\/strong> <p class=\"schema-faq-answer\">La roue \u00e0 contact est sujette au glissement et \u00e0 l&rsquo;usure, qui introduisent des erreurs variables dans le temps ; la mesure optique conserve en revanche une exactitude constante.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-dim-4\"><strong class=\"schema-faq-question\">Quelle exactitude obtient-on sur la longueur ?<\/strong> <p class=\"schema-faq-answer\">Avec le VLM500, l&rsquo;incertitude est inf\u00e9rieure \u00e0 0,025 % \u00e0 la distance nominale ; le VLM60 offre une incertitude inf\u00e9rieure \u00e0 1 %.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-dim-5\"><strong class=\"schema-faq-question\">Sur quels mat\u00e9riaux la mesure optique fonctionne-t-elle ?<\/strong> <p class=\"schema-faq-answer\">Sur presque toutes les surfaces : m\u00e9tal, papier, bois, plastique, textiles et caoutchouc, m\u00eame chauds, minces ou brillants.<\/p> <\/div> <\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"prodotti-collegati\">Produits associ\u00e9s <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Les instruments RODER pour cette application. Rendez-vous sur les pages de catalogue correspondantes pour les mod\u00e8les, les donn\u00e9es techniques et la documentation. <\/p>\n\n\n\n<div class=\"wp-block-group is-layout-grid wp-container-core-group-is-layout-b251d530 wp-block-group-is-layout-grid\">\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/produits\/telemetres-laser-industriels\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2020\/01\/ldm_41_42_series_laser_distance_meters_industrial_applications_masterimage.png\" alt=\"T&#xE9;l&#xE9;m&#xE8;tres LASER industriels\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\"><a href=\"https:\/\/roder.it\/fr\/produits\/telemetres-laser-industriels\/\">T\u00e9l\u00e9m\u00e8tres LASER industriels<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">T\u00e9l\u00e9m\u00e8tres LASER LDM pour distance, position et niveau sans contact.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-custom-font-size wp-element-button\" href=\"https:\/\/roder.it\/fr\/produits\/telemetres-laser-industriels\/\" style=\"font-size:14px\">D\u00e9couvrir le catalogue<\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/produits\/velocimetres-et-encodeurs-optiques\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-appl_nastro_continuo_tappeti_continui-web_image-300x300-1.webp\" alt=\"V&#xE9;locim&#xE8;tres et encodeurs optiques\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\"><a href=\"https:\/\/roder.it\/fr\/produits\/velocimetres-et-encodeurs-optiques\/\">V\u00e9locim\u00e8tres et encodeurs optiques<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">V\u00e9locim\u00e8tres VLM pour la mesure sans contact de vitesse et de longueur.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-custom-font-size wp-element-button\" href=\"https:\/\/roder.it\/fr\/produits\/velocimetres-et-encodeurs-optiques\/\" style=\"font-size:14px\">D\u00e9couvrir le catalogue<\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/produits\/archimetres-numeriques-serie-diacheck-ct\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2022\/12\/DIACHECK-ESTERNI.png\" alt=\"Archim&#xE8;tres num&#xE9;riques DIACHECK-CT\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\"><a href=\"https:\/\/roder.it\/fr\/produits\/archimetres-numeriques-serie-diacheck-ct\/\">Archim\u00e8tres num\u00e9riques DIACHECK-CT<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">Archim\u00e8tres DIACHECK-CT pour la mesure de rayons et de diam\u00e8tres de produits courbes.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-custom-font-size wp-element-button\" href=\"https:\/\/roder.it\/fr\/produits\/archimetres-numeriques-serie-diacheck-ct\/\" style=\"font-size:14px\">D\u00e9couvrir le catalogue<\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/produits\/epaisseurmetres-a-fourche\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/kaefer-k200-spessimetro_a_forcella_analogico_k200-web_image-1000x1000-1.webp\" alt=\"&#xC9;paisseurm&#xE8;tres &#xE0; fourche K&#xE4;fer\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\"><a href=\"https:\/\/roder.it\/fr\/produits\/epaisseurmetres-a-fourche\/\">\u00c9paisseurm\u00e8tres \u00e0 fourche K\u00e4fer<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">\u00c9paisseurm\u00e8tres \u00e0 fourche K\u00e4fer, analogiques et num\u00e9riques, pour le contr\u00f4le dimensionnel.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-custom-font-size wp-element-button\" href=\"https:\/\/roder.it\/fr\/produits\/epaisseurmetres-a-fourche\/\" style=\"font-size:14px\">D\u00e9couvrir le catalogue<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading has-ti-accent-color has-text-color\" id=\"in-questa-sezione\">Les pages de cette section <a class=\"roder-up\" href=\"#\" title=\"Retour en haut de page\" aria-label=\"Torna all&#x2019;inizio della pagina\">\u2191 haut<\/a><\/h2>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Les pages d\u2019approfondissement de cette grandeur : techniques, crit\u00e8res de choix et familles d\u2019instruments.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-17c5c485 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<div class=\"wp-block-group has-border-color is-layout-constrained wp-container-core-group-is-layout-4c96c1b2 wp-block-group-is-layout-constrained\" style=\"border-color:#225f78;border-width:2px;border-radius:14px;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-group has-background is-content-justification-space-between is-nowrap is-layout-flex wp-container-core-group-is-layout-64b06f47 wp-block-group-is-layout-flex\" style=\"border-top-left-radius:11px;border-top-right-radius:11px;background-color:#225f78;padding-top:12px;padding-right:20px;padding-bottom:12px;padding-left:20px\">\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-7b7bb4f4 wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#cfe6f0;margin-top:0;margin-bottom:0;font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase\">Pour aller plus loin<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-4\" style=\"color:#ffffff;margin-top:0;margin-bottom:0;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.769), 20px);\"><a href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesures-de-longueur-largeur-et-epaisseur-par-contact\/\">Mesures de longueur, largeur et \u00e9paisseur par contact<\/a><\/h3>\n<\/div>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#ffffff;margin-top:0;margin-bottom:0;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 1.294), 28px);font-weight:700\">\u2192<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-bf2022b5 wp-block-columns-is-layout-flex\" style=\"padding-top:16px;padding-right:18px;padding-bottom:16px;padding-left:18px\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesures-de-longueur-largeur-et-epaisseur-par-contact\/\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30.webp\" alt=\"Pied &#xE0; coulisse num&#xE9;rique Mitutoyo ABSOLUTE Digimatic\" class=\"has-border-color wp-image-35890\" style=\"border-color:#000000;border-width:1px;border-radius:10px;aspect-ratio:1;object-fit:cover\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30.webp 800w, https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30-300x300.webp 300w, https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30-150x150.webp?crop=1 150w, https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30-768x768.webp 768w, https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30-600x600.webp?crop=1 600w, https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30-400x400.webp?crop=1 400w, https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30-200x200.webp?crop=1 200w, https:\/\/roder.it\/wp-content\/uploads\/2026\/11\/mitutoyo-calibro-digitale-absolute-digimatic-573-182-30-120x120.webp?crop=1 120w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#4a5b66;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.128), 15px);\">Les mesures par contact de longueur, largeur et \u00e9paisseur restent la r\u00e9f\u00e9rence en mati\u00e8re de pr\u00e9cision et de simplicit\u00e9 : comparateurs, \u00e9paissim\u00e8tres \u00e0 fourche et jauges d&rsquo;arc\u2026<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-font-size\" style=\"font-size:14px;font-weight:700\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesures-de-longueur-largeur-et-epaisseur-par-contact\/\" style=\"border-radius:8px;color:#ffffff;background-color:#225f78;padding-top:9px;padding-right:16px;padding-bottom:9px;padding-left:16px\">En savoir plus \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<div class=\"wp-block-group has-border-color is-layout-constrained wp-container-core-group-is-layout-4c96c1b2 wp-block-group-is-layout-constrained\" style=\"border-color:#225f78;border-width:2px;border-radius:14px;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-group has-background is-content-justification-space-between is-nowrap is-layout-flex wp-container-core-group-is-layout-64b06f47 wp-block-group-is-layout-flex\" style=\"border-top-left-radius:11px;border-top-right-radius:11px;background-color:#225f78;padding-top:12px;padding-right:20px;padding-bottom:12px;padding-left:20px\">\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-7b7bb4f4 wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#cfe6f0;margin-top:0;margin-bottom:0;font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase\">Pour aller plus loin<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-5\" style=\"color:#ffffff;margin-top:0;margin-bottom:0;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.769), 20px);\"><a href=\"https:\/\/roder.it\/fr\/controles\/diametre-ovalite-profil-et-forme\/mesureurs-de-largeur-et-de-longueur-sans-contact\/\">Mesureurs de largeur et de longueur sans contact<\/a><\/h3>\n<\/div>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#ffffff;margin-top:0;margin-bottom:0;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 1.294), 28px);font-weight:700\">\u2192<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-bf2022b5 wp-block-columns-is-layout-flex\" style=\"padding-top:16px;padding-right:18px;padding-bottom:16px;padding-left:18px\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/controles\/diametre-ovalite-profil-et-forme\/mesureurs-de-largeur-et-de-longueur-sans-contact\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1200\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_ltm_lwm_immagine_produzione.png\" alt=\"&#xE9;paisseurm&#xE8;tre laser pour la mesure de l&#x2019;&#xE9;paisseur de bandes m&#xE9;talliques, t&#xF4;les et bandes continues dans les installations de d&#xE9;capage et de coupe\" class=\"has-border-color wp-image-6100\" style=\"border-color:#000000;border-width:1px;border-radius:10px;aspect-ratio:1;object-fit:cover\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_ltm_lwm_immagine_produzione.png 1600w, https:\/\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_ltm_lwm_immagine_produzione-300x225.png 300w, https:\/\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_ltm_lwm_immagine_produzione-1024x768.png 1024w, https:\/\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_ltm_lwm_immagine_produzione-768x576.png 768w, https:\/\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_ltm_lwm_immagine_produzione-1536x1152.png 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#4a5b66;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.128), 15px);\">Instruments laser et optiques pour la mesure sans contact de la largeur et de la longueur de bandes, t\u00f4les et profil\u00e9s.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-font-size\" style=\"font-size:14px;font-weight:700\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"https:\/\/roder.it\/fr\/controles\/diametre-ovalite-profil-et-forme\/mesureurs-de-largeur-et-de-longueur-sans-contact\/\" style=\"border-radius:8px;color:#ffffff;background-color:#225f78;padding-top:9px;padding-right:16px;padding-bottom:9px;padding-left:16px\">En savoir plus \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-17c5c485 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<div class=\"wp-block-group has-border-color is-layout-constrained wp-container-core-group-is-layout-4c96c1b2 wp-block-group-is-layout-constrained\" style=\"border-color:#225f78;border-width:2px;border-radius:14px;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-group has-background is-content-justification-space-between is-nowrap is-layout-flex wp-container-core-group-is-layout-64b06f47 wp-block-group-is-layout-flex\" style=\"border-top-left-radius:11px;border-top-right-radius:11px;background-color:#225f78;padding-top:12px;padding-right:20px;padding-bottom:12px;padding-left:20px\">\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-7b7bb4f4 wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#cfe6f0;margin-top:0;margin-bottom:0;font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase\">Pour aller plus loin<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-6\" style=\"color:#ffffff;margin-top:0;margin-bottom:0;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.769), 20px);\"><a href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesure-de-vitesse-et-de-longueur-sans-contact\/\">Mesure de vitesse et de longueur sans contact<\/a><\/h3>\n<\/div>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#ffffff;margin-top:0;margin-bottom:0;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 1.294), 28px);font-weight:700\">\u2192<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-bf2022b5 wp-block-columns-is-layout-flex\" style=\"padding-top:16px;padding-right:18px;padding-bottom:16px;padding-left:18px\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesure-de-vitesse-et-de-longueur-sans-contact\/\"><img loading=\"lazy\" decoding=\"async\" width=\"510\" height=\"510\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-vlm500_foto_prodotto_assonometria_vista-web_image-510x510-1.webp\" alt=\"ASTECH VLM500 : photo produit en axonom&#xE9;trie, vue avant de l'encodeur optique\" class=\"has-border-color wp-image-14956\" style=\"border-color:#000000;border-width:1px;border-radius:10px;aspect-ratio:1;object-fit:cover\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-vlm500_foto_prodotto_assonometria_vista-web_image-510x510-1.webp 510w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-vlm500_foto_prodotto_assonometria_vista-web_image-510x510-1-300x300.webp 300w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-vlm500_foto_prodotto_assonometria_vista-web_image-510x510-1-150x150.webp?crop=1 150w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/astech-velocimetri_ottici_vlm500-vlm500_foto_prodotto_assonometria_vista-web_image-510x510-1-120x120.webp?crop=1 120w\" sizes=\"auto, (max-width: 510px) 100vw, 510px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#4a5b66;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.128), 15px);\">La mesure de longueur en continu concerne les mat\u00e9riaux produits sans interruption : bandes, fils, c\u00e2bles, tubes, profil\u00e9s, panneaux et tissus. Dans ces cas, la\u2026 <\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-font-size\" style=\"font-size:14px;font-weight:700\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesure-de-vitesse-et-de-longueur-sans-contact\/\" style=\"border-radius:8px;color:#ffffff;background-color:#225f78;padding-top:9px;padding-right:16px;padding-bottom:9px;padding-left:16px\">En savoir plus \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<div class=\"wp-block-group has-border-color is-layout-constrained wp-container-core-group-is-layout-4c96c1b2 wp-block-group-is-layout-constrained\" style=\"border-color:#225f78;border-width:2px;border-radius:14px;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-group has-background is-content-justification-space-between is-nowrap is-layout-flex wp-container-core-group-is-layout-64b06f47 wp-block-group-is-layout-flex\" style=\"border-top-left-radius:11px;border-top-right-radius:11px;background-color:#225f78;padding-top:12px;padding-right:20px;padding-bottom:12px;padding-left:20px\">\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-7b7bb4f4 wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#cfe6f0;margin-top:0;margin-bottom:0;font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase\">Pour aller plus loin<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-7\" style=\"color:#ffffff;margin-top:0;margin-bottom:0;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.769), 20px);\"><a href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesures-de-distance-sans-contact\/\">Mesures de distance sans contact<\/a><\/h3>\n<\/div>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#ffffff;margin-top:0;margin-bottom:0;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 1.294), 28px);font-weight:700\">\u2192<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-bf2022b5 wp-block-columns-is-layout-flex\" style=\"padding-top:16px;padding-right:18px;padding-bottom:16px;padding-left:18px\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesures-de-distance-sans-contact\/\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/10\/15-09-98-main.webp\" alt=\"T&#xE9;l&#xE9;m&#xE8;tre laser ASTECH LDM42EI avec interface EtherNet\/IP, jusqu'&#xE0; 150 m &#x2013; kit\" class=\"has-border-color wp-image-32261\" style=\"border-color:#000000;border-width:1px;border-radius:10px;aspect-ratio:1;object-fit:cover\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/10\/15-09-98-main.webp 600w, https:\/\/roder.it\/wp-content\/uploads\/2026\/10\/15-09-98-main-300x300.webp 300w, https:\/\/roder.it\/wp-content\/uploads\/2026\/10\/15-09-98-main-150x150.webp?crop=1 150w, https:\/\/roder.it\/wp-content\/uploads\/2026\/10\/15-09-98-main-400x400.webp?crop=1 400w, https:\/\/roder.it\/wp-content\/uploads\/2026\/10\/15-09-98-main-200x200.webp?crop=1 200w, https:\/\/roder.it\/wp-content\/uploads\/2026\/10\/15-09-98-main-120x120.webp?crop=1 120w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#4a5b66;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.128), 15px);\">La mesure de distance sans contact avec des t\u00e9l\u00e9m\u00e8tres LASER permet de relever distances, positions et niveaux de mani\u00e8re rapide et pr\u00e9cise, m\u00eame sur des objets en mouvement\u2026<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-font-size\" style=\"font-size:14px;font-weight:700\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/mesures-de-distance-sans-contact\/\" style=\"border-radius:8px;color:#ffffff;background-color:#225f78;padding-top:9px;padding-right:16px;padding-bottom:9px;padding-left:16px\">En savoir plus \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<p class=\"wp-block-paragraph\"><em>Les informations contenues dans cette page sont fournies \u00e0 titre indicatif. Bien qu&rsquo;elles aient \u00e9t\u00e9 \u00e9labor\u00e9es avec le plus grand soin, elles peuvent comporter des erreurs de transcription ou des coquilles : pour des informations pr\u00e9cises et \u00e0 jour, nous vous invitons \u00e0 contacter directement RODER SRL. <\/em><\/p>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading has-ti-accent-color has-text-color has-link-color wp-elements-8\">Contacts &amp; Informations<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Contact pour informations g\u00e9n\u00e9rales : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><br\/><br\/>Division Vision Industrielle de RODER : <a href=\"https:\/\/www.visiotronix.com\/\">www.visiotronix.com<\/a><br\/>Division Instruments RODER : <a href=\"https:\/\/www.visiotronix.com\/\">www.innovacheck.com<\/a><br\/>En savoir plus sur RODER : <a href=\"https:\/\/roder.it\/fr\/contatti\/\">qui sommes-nous<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les informations contenues dans ce site web sont fournies \u00e0 titre purement informatif. Bien qu&rsquo;elles aient \u00e9t\u00e9 r\u00e9dig\u00e9es avec le plus grand soin, elles ne constituent ni une offre contractuelle ni un engagement de fourniture. Elles peuvent contenir des erreurs de transcription, de traduction ou de typographie. Pour des informations pr\u00e9cises et \u00e0 jour, nous vous prions de contacter directement notre soci\u00e9t\u00e9.   <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note :<\/strong> Certaines images pr\u00e9sentes sur ce site web ont \u00e9t\u00e9 volontairement g\u00e9n\u00e9r\u00e9es \u00e0 l&rsquo;aide de l&rsquo;intelligence artificielle (IA). En effet, pour de nombreuses applications et projets, les photographies de l&rsquo;installation ou du syst\u00e8me r\u00e9el ne peuvent \u00eatre divulgu\u00e9es en raison d&rsquo;accords de confidentialit\u00e9, de clauses contractuelles et d&rsquo;accords de non-divulgation (NDA). <\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>RODER \u00b7 Contr\u00f4les \u00b7 Dimensions et g\u00e9om\u00e9trie Longueur et largeur La dimension et la g\u00e9om\u00e9trie comptent parmi les grandeurs fondamentales du contr\u00f4le qualit\u00e9 industriel. Les mesurer correctement, c&rsquo;est garantir qu&rsquo;un produit respecte les tol\u00e9rances, qu&rsquo;il est conforme aux sp\u00e9cifications et qu&rsquo;il maintient des performances constantes. Dans cette section, consacr\u00e9e aux Contr\u00f4les, nous approfondissons la grandeur [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":19246,"parent":18002,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"mesures dimensionnelles et g\u00e9om\u00e9triques","_yoast_wpseo_title":"Dimension et g\u00e9om\u00e9trie : mesures industrielles | RODER","_yoast_wpseo_metadesc":"Guide des mesures dimensionnelles et g\u00e9om\u00e9triques : longueur, largeur, \u00e9paisseur, diam\u00e8tre, distance, mesure 3D et \u00e9talonnage. Instruments et syst\u00e8mes RODER.","_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"footnotes":""},"class_list":["post-19245","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dimension et g\u00e9om\u00e9trie : mesures industrielles | RODER<\/title>\n<meta name=\"description\" content=\"Guide des mesures dimensionnelles et g\u00e9om\u00e9triques : longueur, largeur, \u00e9paisseur, diam\u00e8tre, distance, mesure 3D et \u00e9talonnage. Instruments et syst\u00e8mes RODER.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/roder.it\/fr\/controles\/dimension-et-geometrie\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dimension et g\u00e9om\u00e9trie : mesures industrielles | RODER\" \/>\n<meta property=\"og:description\" content=\"Guide des mesures dimensionnelles et g\u00e9om\u00e9triques : longueur, largeur, \u00e9paisseur, diam\u00e8tre, distance, mesure 3D et \u00e9talonnage. 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