{"id":10229,"date":"2021-02-24T14:24:20","date_gmt":"2021-02-24T13:24:20","guid":{"rendered":"https:\/\/consilab.de\/prestations\/caracteristiques-des-substances-relevant-de-la-securite\/permittivite-relative\/"},"modified":"2022-07-11T16:09:32","modified_gmt":"2022-07-11T14:09:32","slug":"permittivite-relative","status":"publish","type":"page","link":"https:\/\/consilab.de\/fr\/prestations\/caracteristiques-des-substances-relevant-de-la-securite\/permittivite-relative\/","title":{"rendered":"Permittivit\u00e9 relative"},"content":{"rendered":"<p>[vc_row rt_row_background_width=\u00a0\u00bbfullwidth\u00a0\u00bb rt_row_content_width=\u00a0\u00bbdefault\u00a0\u00bb rt_row_style=\u00a0\u00bbdefault-style\u00a0\u00bb rt_row_borders=\u00a0\u00bb\u00a0\u00bb rt_row_shadows=\u00a0\u00bb\u00a0\u00bb rt_row_paddings=\u00a0\u00bbfalse\u00a0\u00bb rt_bg_effect=\u00a0\u00bbclassic\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbcover\u00a0\u00bb rt_bg_position=\u00a0\u00bbright top\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb rt_bg_video_format=\u00a0\u00bbself-hosted\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/3&Prime; rt_column_shadow=\u00a0\u00bb\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbauto auto\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb class=\u00a0\u00bbdownload\u00a0\u00bb rt_bg_color=\u00a0\u00bb\u00a0\u00bb rt_bg_overlay_color=\u00a0\u00bb\u00a0\u00bb offset=\u00a0\u00bbvc_hidden-sm vc_hidden-xs\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1532424200870{padding-bottom: 0px !important;}\u00a0\u00bb rt_padding_bottom=\u00a0\u00bb0&Prime;][vc_widget_sidebar sidebar_id=\u00a0\u00bbrt-theme-20-common-sidebar\u00a0\u00bb][\/vc_column][vc_column width=\u00a0\u00bb2\/3&Prime; rt_column_shadow=\u00a0\u00bb\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbauto auto\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb class=\u00a0\u00bbmaincontent\u00a0\u00bb rt_bg_color=\u00a0\u00bb\u00a0\u00bb rt_bg_overlay_color=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1532424195693{margin-bottom: 1em !important;padding-bottom: 2em !important;}\u00a0\u00bb][vc_column_text el_class=\u00a0\u00bbredborderleft\u00a0\u00bb]<\/p>\n<h1>D\u00e9termination de la permittivit\u00e9 relative<\/h1>\n<h2>La permittivit\u00e9 relative d\u2019un \u00e9chantillon \u00e0 tester est le rapport entre la capacit\u00e9 d\u2019un condensateur, dans lequel l\u2019espace entre les \u00e9lectrodes et autour d\u2019elles est enti\u00e8rement et exclusivement rempli par l\u2019\u00e9chantillon en question, et la capacit\u00e9 de la disposition \u00e9quivalente d\u2019\u00e9lectrodes dans le vide.<\/h2>\n<p>De mani\u00e8re g\u00e9n\u00e9rale, la capacit\u00e9 de la disposition d\u2018\u00e9lectrodes dans l\u2019air peut \u00eatre utilis\u00e9e au lieu et place de la capacit\u00e9 de la disposition des \u00e9lectrodes dans le vide pour d\u00e9terminer la permittivit\u00e9 relative avec une pr\u00e9cision suffisante.<\/p>\n<p>La d\u00e9termination de la permittivit\u00e9 relative des liquides s\u2019effectue conform\u00e9ment \u00e0 la norme DIN EN 60247 de janvier 2005.<\/p>\n<p>La permittivit\u00e9 est quantifi\u00e9e \u00e0 l\u2019aide de l\u2019appareil de mesure Epsilon<sup>+<\/sup> de la soci\u00e9t\u00e9 flucon fluid control GmbH. La <strong>figure\u00a01 <\/strong>montre une illustration sch\u00e9matique de la disposition des \u00e9lectrodes dans la cellule de mesure. Cette cellule est construite de mani\u00e8re similaire \u00e0 un condenseur tubulaire, elle se compose d\u2019une \u00e9lectrode interne et d\u2019une \u00e9lectrode externe. On remplit la cellule de mesure avec l\u2019\u00e9chantillon \u00e0 tester. On place cette cellule de mesure (voir <strong>figure 1<\/strong>) dans une enceinte thermostat\u00e9e de la soci\u00e9t\u00e9 OMEGA. Cela permet de mesurer la permittivit\u00e9 relative dans une plage de temp\u00e9rature de 20\u00b0C \u00e0 180\u00b0C. La temp\u00e9rature se laisse ainsi r\u00e9gler avec une pr\u00e9cision de 0,03K. Il est de cette mani\u00e8re possible de mesurer directement des courbes de temp\u00e9rature.<\/p>\n<div id=\"attachment_10223\" style=\"width: 955px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/consilab.de\/wp-content\/uploads\/2021\/04\/PERMITTIVITE\u0301-RELATIVE.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-10223\" class=\"wp-image-10223 size-full\" src=\"https:\/\/consilab.de\/wp-content\/uploads\/2021\/04\/PERMITTIVITE\u0301-RELATIVE.jpg\" alt=\"\" width=\"945\" height=\"883\" srcset=\"https:\/\/consilab.de\/wp-content\/uploads\/2021\/04\/PERMITTIVITE\u0301-RELATIVE.jpg 945w, https:\/\/consilab.de\/wp-content\/uploads\/2021\/04\/PERMITTIVITE\u0301-RELATIVE-350x327.jpg 350w, https:\/\/consilab.de\/wp-content\/uploads\/2021\/04\/PERMITTIVITE\u0301-RELATIVE-768x718.jpg 768w\" sizes=\"auto, (max-width: 945px) 100vw, 945px\" \/><\/a><p id=\"caption-attachment-10223\" class=\"wp-caption-text\">Figure 1 : Structure sch\u00e9matis\u00e9e de la disposition des \u00e9lectrodes de la cellule de mesure pour la d\u00e9termination de la permittivit\u00e9 relative (Epsilon+ de la soci\u00e9t\u00e9 flucon fluid control GmbH).<\/p><\/div>\n<p>Sur la base de la permittivit\u00e9 relative \u0190 et de la conductibilit\u00e9 des liquides, il est possible de d\u00e9terminer le temps de relaxation dans un r\u00e9cipient conductible ou antistatique conform\u00e9ment \u00e0 la r\u00e9glementation TGGS 727 <a href=\"https:\/\/consilab.de\/fr\/prestations\/caracteristiques-des-substances-relevant-de-la-securite\/permittivite-relative\/#_ftn1\">[1]<\/a> \u00e0 partir de l\u2019\u00e9quation suivante\u00a0:<\/p>\n<p>\u01ac = \u0190<sub>0<\/sub> \u00b7 \u0190<sub>r<\/sub> \/ k<\/p>\n<p>Par ailleurs, la permittivit\u00e9 relative est \u00e9galement utile, entre autres, pour le r\u00e9glage et le fonctionnement correct des capteurs capacitifs du niveau de remplissage.<\/p>\n<p><a name=\"_ftn1\"><\/a><a href=\"https:\/\/consilab.de\/leistungen\/kenndaten-von-stoffen\/relative-permittivitaet\/#_ftnref1\">[1]<\/a> TRGS 727 Pr\u00e9vention des risques d\u2019inflammation du fait de charges \u00e9lectrostatiques, janvier 2016[\/vc_column_text][vc_row_inner rt_row_style=\u00a0\u00bbglobal-style\u00a0\u00bb rt_bg_custom_alignment=\u00a0\u00bbtop\u00a0\u00bb][vc_column_inner width=\u00a0\u00bb1\/2&Prime; rt_column_shadow=\u00a0\u00bb\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbauto auto\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb][vc_btn title=\u00a0\u00bbCaract\u00e9ristiques des substances\u00a0\u00bb style=\u00a0\u00bbclassic\u00a0\u00bb color=\u00a0\u00bbpurple\u00a0\u00bb i_icon_fontawesome=\u00a0\u00bbfas fa-angle-left\u00a0\u00bb add_icon=\u00a0\u00bbtrue\u00a0\u00bb link=\u00a0\u00bburl:%2Ffr%2Fprestations%2Fcaracteristiques-des-substances-relevant-de-la-securite%2F|title:Caract%C3%A9ristiques%20des%20substances\u00a0\u00bb el_class=\u00a0\u00bbbtn&#8211;red\u00a0\u00bb][\/vc_column_inner][vc_column_inner width=\u00a0\u00bb1\/2&Prime; rt_column_shadow=\u00a0\u00bb\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbauto auto\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb][vc_btn title=\u00a0\u00bbPrestations\u00a0\u00bb style=\u00a0\u00bbclassic\u00a0\u00bb color=\u00a0\u00bbpurple\u00a0\u00bb i_icon_fontawesome=\u00a0\u00bbfas fa-angle-left\u00a0\u00bb add_icon=\u00a0\u00bbtrue\u00a0\u00bb link=\u00a0\u00bburl:%2Ffr%2Fprestations%2F|title:Prestations\u00a0\u00bb el_class=\u00a0\u00bbbtn&#8211;red\u00a0\u00bb][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[vc_row rt_row_background_width=\u00a0\u00bbfullwidth\u00a0\u00bb rt_row_content_width=\u00a0\u00bbdefault\u00a0\u00bb rt_row_style=\u00a0\u00bbdefault-style\u00a0\u00bb rt_row_borders=\u00a0\u00bb\u00a0\u00bb rt_row_shadows=\u00a0\u00bb\u00a0\u00bb rt_row_paddings=\u00a0\u00bbfalse\u00a0\u00bb rt_bg_effect=\u00a0\u00bbclassic\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbcover\u00a0\u00bb rt_bg_position=\u00a0\u00bbright top\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb rt_bg_video_format=\u00a0\u00bbself-hosted\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/3&Prime; rt_column_shadow=\u00a0\u00bb\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbauto auto\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb class=\u00a0\u00bbdownload\u00a0\u00bb rt_bg_color=\u00a0\u00bb\u00a0\u00bb rt_bg_overlay_color=\u00a0\u00bb\u00a0\u00bb offset=\u00a0\u00bbvc_hidden-sm vc_hidden-xs\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1532424200870{padding-bottom: 0px !important;}\u00a0\u00bb rt_padding_bottom=\u00a0\u00bb0&Prime;][vc_widget_sidebar sidebar_id=\u00a0\u00bbrt-theme-20-common-sidebar\u00a0\u00bb][\/vc_column][vc_column width=\u00a0\u00bb2\/3&Prime; rt_column_shadow=\u00a0\u00bb\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbauto auto\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb class=\u00a0\u00bbmaincontent\u00a0\u00bb rt_bg_color=\u00a0\u00bb\u00a0\u00bb rt_bg_overlay_color=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1532424195693{margin-bottom: 1em !important;padding-bottom: 2em !important;}\u00a0\u00bb][vc_column_text el_class=\u00a0\u00bbredborderleft\u00a0\u00bb] D\u00e9termination de la permittivit\u00e9 relative La permittivit\u00e9 relative d\u2019un \u00e9chantillon  &#8230;<br \/><a class=\"more-link\" href=\"https:\/\/consilab.de\/fr\/prestations\/caracteristiques-des-substances-relevant-de-la-securite\/permittivite-relative\/\">more | mehr<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":9313,"menu_order":18,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10229","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/pages\/10229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/comments?post=10229"}],"version-history":[{"count":1,"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/pages\/10229\/revisions"}],"predecessor-version":[{"id":12098,"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/pages\/10229\/revisions\/12098"}],"up":[{"embeddable":true,"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/pages\/9313"}],"wp:attachment":[{"href":"https:\/\/consilab.de\/fr\/wp-json\/wp\/v2\/media?parent=10229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}