{"id":10140,"date":"2023-07-11T15:15:53","date_gmt":"2023-07-11T07:15:53","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=10140"},"modified":"2025-07-07T10:28:15","modified_gmt":"2025-07-07T02:28:15","slug":"shielded-vs-unshielded-proximity-sensor-3-big-differences-you-need-to-know","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/fr\/shielded-vs-unshielded-proximity-sensor-3-big-differences-you-need-to-know\/","title":{"rendered":"Capteur de proximit\u00e9 blind\u00e9 ou non blind\u00e9 : 3 grandes diff\u00e9rences \u00e0 conna\u00eetre"},"content":{"rendered":"
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Il existe trois diff\u00e9rences entre un capteur de proximit\u00e9 blind\u00e9<\/strong>(\u00e9galement connu sous le nom de capteur de rin\u00e7age) et capteur de proximit\u00e9 non blind\u00e9<\/strong>(\u00e9galement appel\u00e9 capteur de proximit\u00e9 non affleurant), de quoi s'agit-il ? Examinons-les dans les parties suivantes de cet article.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Capteur\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Diff\u00e9rence de longueur de la t\u00eate du capteur PBT<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Un mat\u00e9riau de t\u00eate de capteur de proximit\u00e9 est PBT (polybutyl\u00e8ne t\u00e9r\u00e9phtalate)<\/span><\/a>. Le mat\u00e9riau PBT pr\u00e9sente de nombreux avantages, tels qu'une r\u00e9sistance \u00e9lev\u00e9e, l'ininflammabilit\u00e9, etc. La t\u00eate PBT de notre capteurs de proximit\u00e9<\/span><\/a> est de couleur bleue, certains fabricants de capteurs de proximit\u00e9 peuvent utiliser orange<\/span>(Autonics) ou vert (Pepperl+Fuchs). Lorsque l'on assemble un capteur de proximit\u00e9 blind\u00e9 et un capteur de proximit\u00e9 non blind\u00e9 du m\u00eame mod\u00e8le, on peut clairement voir que la t\u00eate du capteur de proximit\u00e9 non blind\u00e9 est plus longue que celle du capteur blind\u00e9. En g\u00e9n\u00e9ral, la diff\u00e9rence de longueur de la t\u00eate est de 4,5 \u00e0 12 mm.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Diff\u00e9rence de distance de d\u00e9tection entre un capteur de proximit\u00e9 blind\u00e9 et non blind\u00e9<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Du point de vue de la distance de d\u00e9tection, la distance de d\u00e9tection du capteur de proximit\u00e9 non blind\u00e9 est plus longue que celle du capteur blind\u00e9.\u00a0<\/p>

Par exemple, un D\u00e9tecteur de proximit\u00e9 inductif M18 en laiton nickel\u00e9<\/span><\/a> n'est que de 0 \u00e0 5 mm. Alors que la m\u00eame distance de d\u00e9tection pour un c\u00e2ble non blind\u00e9 sera de 0 \u00e0 8,0 mm. Pourquoi ? Comme la t\u00eate de capteur non blind\u00e9e est hors de son bo\u00eetier, son champ magn\u00e9tique est plus grand et plus fort.\u00a0<\/p>

Ainsi, lorsqu'un objet m\u00e9tallique s'approche, il peut le d\u00e9tecter \u00e0 une grande distance. Comme la t\u00eate d'un capteur \u00e0 bouclier est enfouie dans le bo\u00eetier, son champ magn\u00e9tique est faiblement bloqu\u00e9 par le bo\u00eetier.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"Diff\u00e9rences\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Ressources sur https:\/\/lorentzzi.com\/products\/proximity-sensor\/inductive-proximity-sensor\/lm18-18mm-diameter-inductive-proximity-sensor\/<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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M\u00e9thodes d'installation diff\u00e9rence entre un capteur de proximit\u00e9 blind\u00e9 et non blind\u00e9<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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La m\u00e9thode d'installation diff\u00e8re entre les deux types de capteurs.\u00a0<\/p>

Lors de l'installation d'un capteur de proximit\u00e9 blind\u00e9, la surface de d\u00e9tection du capteur peut \u00eatre affleurante \u00e0 la surface d'installation. Comme indiqu\u00e9 pr\u00e9c\u00e9demment, l'\u00e9mission du champ magn\u00e9tique est limit\u00e9e \u00e0 la t\u00eate du cylindre, aucun champ magn\u00e9tique n'\u00e9tant g\u00e9n\u00e9r\u00e9 sur le c\u00f4t\u00e9 du cylindre. Cette m\u00e9thode d'installation offre l'avantage d'\u00e9viter les dommages caus\u00e9s par les collisions avec l'objet d\u00e9tect\u00e9.\u00a0<\/span><\/p>

Pour les capteurs de proximit\u00e9 non blind\u00e9s, la t\u00eate du capteur doit \u00eatre expos\u00e9e au-del\u00e0 de la surface d'installation, car son c\u00f4t\u00e9 peut \u00e9galement \u00e9mettre un champ magn\u00e9tique. Il est essentiel d'assurer la r\u00e9ussite du circuit par le champ magn\u00e9tique dans cette zone. Bien que ce capteur offre une plus grande distance de d\u00e9tection que le capteur de proximit\u00e9 blind\u00e9, il risque d'\u00eatre endommag\u00e9 par le champ magn\u00e9tique de l'objet. inertie<\/span><\/a> lorsqu'il s'approche du capteur.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Conseils pour l'installation de plus de deux capteurs de proximit\u00e9<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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En outre, il est important de tenir compte du fait que lors de l'installation de plusieurs capteurs de proximit\u00e9 c\u00f4te \u00e0 c\u00f4te, il convient de respecter un espacement suffisant pour \u00e9viter les interf\u00e9rences mutuelles entre les capteurs et \u00e9viter que interf\u00e9rence magn\u00e9tique<\/span><\/a>.\u00a0<\/p>

Dans le cas des capteurs de proximit\u00e9 blind\u00e9s, l'espacement doit \u00eatre \u00e9gal ou sup\u00e9rieur \u00e0 deux fois leur diam\u00e8tre.\u00a0<\/p>

Pour les capteurs de proximit\u00e9 non blind\u00e9s, la distance entre deux capteurs doit \u00eatre \u00e9gale ou sup\u00e9rieure \u00e0 trois fois leur diam\u00e8tre. Les d\u00e9tecteurs de proximit\u00e9 inductifs ne peuvent d\u00e9tecter que des substances m\u00e9talliques,<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Installation\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Voici les 3 diff\u00e9rences entre un capteur de proximit\u00e9 blind\u00e9 et non blind\u00e9. En connaissant ces diff\u00e9rences, nous pouvons maintenant choisir le bon capteur de proximit\u00e9. Si vous avez encore des questions, laissez-nous un commentaire ci-dessous, nous vous fournirons une r\u00e9ponse professionnelle dans les 24 heures.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/main>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

There are 3 differences between a shielded proximity sensor(also know as flush sensor) and unshielded proximity sensor(also called non flush proximity sensor), so what are they? Let’s have a look them in following parts in this article. Table of Contents PBT sensor head length difference A proximity sensor head material is PBT(Polybutylene terephthalate). PBT material […]<\/p>\n","protected":false},"author":1,"featured_media":10142,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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