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{"id":6858,"date":"2016-07-22T09:02:59","date_gmt":"2016-07-22T07:02:59","guid":{"rendered":"http:\/\/4.blog-stage.wika.cloudpowered.services\/?p=6858"},"modified":"2016-07-22T09:02:59","modified_gmt":"2016-07-22T07:02:59","slug":"idrogeno-e-sensori-di-pressione-cosa-considerare-quando-si-utilizza-lidrogeno-come-fluido-di-processo","status":"publish","type":"post","link":"https:\/\/4.blog-stage.wika.cloudpowered.services\/applicazioni\/idrogeno-e-sensori-di-pressione-cosa-considerare-quando-si-utilizza-lidrogeno-come-fluido-di-processo\/","title":{"rendered":"Idrogeno e sensori di pressione: cosa occorre tener presente quando si utilizza l\u2019idrogeno come fluido di processo?"},"content":{"rendered":" <\/p>\n
Quando i sensori di pressione entrano in contatto con l\u2019idrogeno si possono verificare degli inconvenienti. Come produttori di sensori, notiamo molto spesso che i clienti non ne sono consapevoli prima dell\u2019utilizzo. Ecco perch\u00e9 spesso non siamo informati che il loro fluido di processo contiene idrogeno e, di conseguenza, ci troviamo semplicemente a gestire un reclamo. Perch\u00e9 l\u2019idrogeno \u00e8 cos\u00ec critico per il funzionamento dei sensori di pressione?<\/p>\n
Innanzitutto bisogna sapere che molti metalli diventano fragili quando sono esposti all\u2019idrogeno. Gli atomi di idrogeno sono in grado di diffondersi nel reticolo atomico del metallo alterando la durezza del materiale.\u00a0 Nel peggiore dei casi si verifica la rottura del materiale. Oppure il sensore di pressione inizia a perdere o si distrugge completamente.<\/p>\n
Nel caso dei sensori di pressione, le sottili membrane necessarie per la misura pressione hanno un ruolo decisivo. L\u2019atomo di idrogeno non solo penetra nel metallo, ma passa anche attraverso esso per diffusione.\u00a0 Questo produce diversi effetti: quando si utilizza un sensore piezoresistivo, il problema diventa critico quando l\u2019idrogeno reagisce con il fluido di trasmissione interno o si accumula al suo interno. All\u2019inizio questo altera solo i risultati di misura, ma pu\u00f2 portare alla completa distruzione del sensore. Nei sensori a film sottile, l\u2019idrogeno pu\u00f2 alterare le caratteristiche di resistenza del ponte di misura.\u00a0 Pur essendo reversibile, questo processo pu\u00f2 portare ad una alterazioni temporanea dei valori elettrici del ponte con conseguente alterazione della misura.<\/p>\n
Tuttavia, gli effetti sopra descritti si verificano in modo diverso per i diversi materiali. Questo significa che gli effetti dell\u2019idrogeno possono essere sostanzialmente minori selezionando i materiali adatti.<\/p>\n
Ottieni maggiori informazioni sulla tecnologia del sensore di pressione<\/a> WIKA.<\/p>\nNel caso di misure di pressione con idrogeno, contattateci<\/a> per avere informazioni sulla soluzione pi\u00f9 adatta per la vostra applicazione.<\/p>\n.<\/p>\n","protected":false},"excerpt":{"rendered":"
Quando i sensori di pressione entrano in contatto con l\u2019idrogeno si possono verificare degli inconvenienti. Come produttori di sensori, notiamo molto spesso che i clienti non ne sono consapevoli prima dell\u2019utilizzo. Ecco perch\u00e9 spesso non siamo informati che il loro fluido di processo contiene idrogeno e, di conseguenza, ci troviamo semplicemente a gestire un […]<\/p>\n","protected":false},"author":33,"featured_media":6859,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_stc_notifier_status":"","_stc_notifier_sent_time":"","_stc_notifier_request":false,"_stc_notifier_prevent":false,"_stc_subscriber_keywords":"","_stc_subscriber_search_areas":"","footnotes":""},"categories":[181],"tags":[242,243,30],"class_list":["post-6858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-applicazioni","tag-idrogeno","tag-materiali","tag-sensore-di-pressione"],"acf":[],"_links":{"self":[{"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/posts\/6858"}],"collection":[{"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/users\/33"}],"replies":[{"embeddable":true,"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/comments?post=6858"}],"version-history":[{"count":4,"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/posts\/6858\/revisions"}],"predecessor-version":[{"id":6863,"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/posts\/6858\/revisions\/6863"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/media\/6859"}],"wp:attachment":[{"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/media?parent=6858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/categories?post=6858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/4.blog-stage.wika.cloudpowered.services\/wp-json\/wp\/v2\/tags?post=6858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}