<\/div>\n
Architecture du rugosim\u00e8tre<\/h2>
Le rugosim\u00e8tre portable est constitu\u00e9 d’une unit\u00e9 de mesure compacte (afficheur et \u00e9lectronique) et d’un palpeur \u00e0 contact \u00e0 pointe diamant (rayon typique de 2 \u00e0 5 \u00b5m) mont\u00e9 sur un dispositif d’entra\u00eenement. La pointe glisse le long de la surface de la pi\u00e8ce sur une longueur d\u00e9finie (longueur d’\u00e9valuation typiquement de 4 \u00e0 8 mm) ; le signal de d\u00e9placement vertical est num\u00e9ris\u00e9, filtr\u00e9 selon des cut-off normalis\u00e9s et analys\u00e9 pour le calcul des param\u00e8tres de rugosit\u00e9. Les vitesses d’entra\u00eenement sont de l’ordre de 0,5 \u00e0 1 mm\/s, avec une r\u00e9solution verticale jusqu’\u00e0 0,001 \u00b5m sur les mod\u00e8les haut de gamme. <\/p>
Param\u00e8tres mesur\u00e9s<\/h2>
Les param\u00e8tres de rugosit\u00e9 les plus utilis\u00e9s sont : Ra (\u00e9cart moyen arithm\u00e9tique du profil, le param\u00e8tre le plus r\u00e9pandu), Rz (hauteur moyenne entre les 5 pics les plus hauts et les 5 creux les plus profonds sur la longueur de base), Rq (\u00e9cart quadratique moyen), Rt (hauteur totale du profil), Rmax (hauteur pic-creux maximale), Rsm (pas moyen des irr\u00e9gularit\u00e9s) et Rpk\/Rk\/Rvk (param\u00e8tres fonctionnels de la courbe d’Abbott-Firestone pour applications tribologiques). Les cut-off normalis\u00e9s (\u03bbc) sont 0,08 \/ 0,25 \/ 0,8 \/ 2,5 \/ 8 mm selon l’ISO 4288. Le choix du cut-off correct d\u00e9pend de la structure de la surface \u00e0 mesurer. <\/p>
Fonctions avanc\u00e9es<\/h2>
Les rugosim\u00e8tres portables modernes int\u00e8grent : un \u00e9cran graphique affichant le profil mesur\u00e9 en temps r\u00e9el ; une m\u00e9moire de plusieurs centaines de mesures ; des statistiques de lot ; des seuils GO\/NOGO avec indication automatique d’acceptation ; une sortie Bluetooth\/USB pour l’int\u00e9gration \u00e0 un logiciel PC ; une imprimante int\u00e9gr\u00e9e pour un rapport imm\u00e9diat ; des syst\u00e8mes automatiques de compensation de l’inclinaison de la pi\u00e8ce ; des palpeurs interchangeables pour applications sp\u00e9ciales (surfaces internes, gorges, petits rayons) ; une batterie rechargeable d’une autonomie de plusieurs journ\u00e9es enti\u00e8res.<\/p>
Applications<\/h2>
L’usage typique en atelier de m\u00e9canique est le contr\u00f4le de rugosit\u00e9 sur des composants tourn\u00e9s, frais\u00e9s, rectifi\u00e9s ou rod\u00e9s : arbres, al\u00e9sages de cylindres moteur, segments de piston, surfaces d’\u00e9tanch\u00e9it\u00e9 m\u00e9canique, engrenages, moules et matrices. Dans les secteurs de l’automobile, de l’a\u00e9ronautique, du ferroviaire, de l’ol\u00e9ohydraulique, du pharmaceutique (pour des finitions sanitaires avec Ra \u2264 0,8 \u00b5m), de l’agroalimentaire et de la cosm\u00e9tique, le contr\u00f4le de la rugosit\u00e9 est prescrit par les cahiers des charges qualit\u00e9 et influe directement sur les performances fonctionnelles (tribologie, \u00e9tanch\u00e9it\u00e9, tenue en fatigue, hygi\u00e8ne). <\/p>
Normes et \u00e9talonnage<\/h2>
Les normes de r\u00e9f\u00e9rence sont l’ISO 4287 (d\u00e9finition des param\u00e8tres 2D), l’ISO 4288 (r\u00e8gles de mesure et d’acceptation), l’ISO 12179 (v\u00e9rification des performances des rugosim\u00e8tres \u00e0 contact), l’ISO 16610 (filtrage num\u00e9rique) et la DIN EN ISO 1302 (indication sur les dessins). L’\u00e9talonnage p\u00e9riodique utilise des \u00e9talons de rugosit\u00e9 certifi\u00e9s ISO 17025 (Ra typiques de 0,1 \/ 0,4 \/ 2 \/ 6 \u00b5m) et des \u00e9talons de p\u00e9riodicit\u00e9 (sinuso\u00efdaux) pour la v\u00e9rification de la longueur d’onde et de l’amplitude. L’entretien de la pointe diamant (v\u00e9rification du rayon, remplacement si elle est endommag\u00e9e) est d\u00e9terminant pour maintenir les performances. <\/p>
Crit\u00e8res de choix<\/h2>
Le choix du rugosim\u00e8tre d\u00e9pend des param\u00e8tres de rugosit\u00e9 exig\u00e9s par le cahier des charges, de la plage de Ra\/Rz typique (de 0,025 \u00e0 200 \u00b5m), des dimensions et de la g\u00e9om\u00e9trie des pi\u00e8ces (mod\u00e8les \u00e0 palpeur s\u00e9par\u00e9 pour trous ou gorges), du compromis entre portabilit\u00e9 et performances de banc, et des fonctions d’int\u00e9gration des donn\u00e9es et d’\u00e9dition de rapports.<\/p>","protected":false},"excerpt":{"rendered":"
Rugosim\u00e8tres d’atelier pour la mesure rapide de la rugosit\u00e9 Ra, Rz et des param\u00e8tres ISO\/DIN sur surfaces usin\u00e9es.<\/p>\n","protected":false},"author":157040980,"featured_media":0,"parent":26514,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_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-23741","page","type-page","status-publish","hentry"],"yoast_head":"\n
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mesure de la tension des fils, fibres et fil\u00e9s, avec classes de port\u00e9e du cN au kN.","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":18169,"url":"https:\/\/roder.it\/fr\/mesure-et-essais\/","url_meta":{"origin":23741,"position":5},"title":"Mesure et essais","author":"GSM","date":"22 mai 2025","format":false,"excerpt":"RODER SRL d\u00e9veloppe et fournit des solutions avanc\u00e9es de mesure et d\u2019essai en milieu industriel, avec une attention particuli\u00e8re \u00e0 la fiabilit\u00e9 m\u00e9trologique, \u00e0 la tra\u00e7abilit\u00e9 des donn\u00e9es et \u00e0 l\u2019int\u00e9gration dans les processus de production. Les technologies propos\u00e9es couvrent un large \u00e9ventail de param\u00e8tres physiques, dont la distance, l\u2019\u00e9paisseur,\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"strumenti di misura e sensori per misure e testing in automazione industriale","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/msiura_testing_banner_roder_metrologia.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/msiura_testing_banner_roder_metrologia.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/msiura_testing_banner_roder_metrologia.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/msiura_testing_banner_roder_metrologia.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/msiura_testing_banner_roder_metrologia.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages\/23741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/users\/157040980"}],"replies":[{"embeddable":true,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/comments?post=23741"}],"version-history":[{"count":3,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages\/23741\/revisions"}],"predecessor-version":[{"id":23749,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages\/23741\/revisions\/23749"}],"up":[{"embeddable":true,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages\/26514"}],"wp:attachment":[{"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/media?parent=23741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"banner](\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png\")