{"id":194709,"date":"2026-06-11T11:40:23","date_gmt":"2026-06-11T09:40:23","guid":{"rendered":"https:\/\/fracarro.com\/?page_id=194709"},"modified":"2026-06-11T11:44:33","modified_gmt":"2026-06-11T09:44:33","slug":"analisi-correnti-alternate","status":"publish","type":"page","link":"https:\/\/fracarro.com\/it\/museo\/tecnologie\/analisi-correnti-alternate\/","title":{"rendered":"Analisi correnti alternate"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1144px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:2rem;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:4rem;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\"><h1 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:61.875;line-height:1.2;\">Analisi correnti alternate<\/h1><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1144px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-slider-sc\"><div class=\"fusion-flexslider-loading flexslider flexslider-hover-type-none\" data-slideshow_autoplay=\"1\" data-slideshow_smooth_height=\"0\" data-slideshow_speed=\"7000\" style=\"max-width:100%;height:100%;\"><ul class=\"slides\"><li class=\"image\"><span class=\"lazyload fusion-image-hover-element hover-type-none\"><img decoding=\"async\" src=\"https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-1.jpg\" data-orig-src=\"https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-1.jpg\" width=\"800\" height=\"534\" class=\"lazyload wp-image-194711\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27800%27%20height%3D%27534%27%20viewBox%3D%270%200%20800%20534%27%3E%3Crect%20width%3D%27800%27%20height%3D%27534%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-1-200x134.jpg 200w, https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-1-400x267.jpg 400w, https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-1-600x401.jpg 600w, https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-1.jpg 800w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 600px\" \/><\/span><\/li><li class=\"image\"><span class=\"lazyload fusion-image-hover-element hover-type-none\"><img decoding=\"async\" src=\"https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-2.jpg\" data-orig-src=\"https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-2.jpg\" width=\"800\" height=\"534\" class=\"lazyload wp-image-194715\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27800%27%20height%3D%27534%27%20viewBox%3D%270%200%20800%20534%27%3E%3Crect%20width%3D%27800%27%20height%3D%27534%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-2-200x134.jpg 200w, https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-2-400x267.jpg 400w, https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-2-600x401.jpg 600w, https:\/\/fracarro.com\/wp-content\/uploads\/2026\/06\/corrente-alternata-2.jpg 800w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 600px\" \/><\/span><\/li><\/ul><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p><strong>Idea\u00a0n.11<\/strong><\/p>\n<p><em>Torino \u2013 31 maggio 1930<\/em><\/p>\n<p>(N.D.R.: vedasi disegno in foto).<\/p>\n<p><em>Una lampada al neon presenta agli effetti della corrente una inerzia davvero trascurabile nel senso di seguire perfettamente con la sua intensit\u00e0 luminosa le pi\u00f9 piccole sfumature della variabilit\u00e0 della corrente che l\u2019alimenta. Con un disco rotante sul quale siano praticati dei forellini disposti secondo una spirale (a passo costante) si possono proiettare successivamente e secondo tante linee attigue le varie intensit\u00e0 luminose nei vari istanti della lampada. Se la velocit\u00e0 del motore \u00e8 sincrona con la corrente alternata sullo schermo si avr\u00e0 l\u2019andamento di un periodo come mostra la figura seguente.\u00a0\u00c8 certo che sia con osservazioni dirette sullo schermo e meglio con scatto di durata perfettamente eguale al periodo della corrente si potrebbero fare dei rilievi interessanti.<br \/>\n\u00c8 bene osservare come con l\u2019osservazione diretta si veda sullo schermo l\u2019immagine di molti periodi sovrapposti e quindi un andamento che \u00e8 la media di questi, e che invece la fotografia con scatto esattamente eguale al periodo darebbe l\u2019immagine fedele di un periodo libera dalla sovrapposizione di altri, come nel primo caso.<br \/>\nEsperimenti su tale genere di cose furono gi\u00e0 fatti con esito soddisfacente nel laboratorio di IBW<\/em><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":6,"featured_media":0,"parent":194600,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"footnotes":""},"class_list":["post-194709","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v26.7) - 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