{"id":586,"date":"2020-02-03T11:57:00","date_gmt":"2020-02-03T11:57:00","guid":{"rendered":"https:\/\/www.geotellurique.fr\/blog\/?p=586"},"modified":"2025-08-22T10:10:58","modified_gmt":"2025-08-22T10:10:58","slug":"attenuation-des-blindage-en-db-explications","status":"publish","type":"post","link":"https:\/\/www.geotellurique.fr\/blog\/attenuation-des-blindage-en-db-explications\/","title":{"rendered":"Att\u00e9nuation des blindages en dB &#8211; Explications"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-box-title\">Sommaire<\/div>\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #3308ff;color:#3308ff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #3308ff;color:#3308ff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.geotellurique.fr\/blog\/attenuation-des-blindage-en-db-explications\/#Que_signifient_les_valeurs_dattenuation_en_dB_pour_les_blindages\" >Que signifient les valeurs d\u2019att\u00e9nuation en dB pour les blindages ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.geotellurique.fr\/blog\/attenuation-des-blindage-en-db-explications\/#Tableau_de_correspondance_des_niveaux_dattenuation_theoriques\" >Tableau de correspondance des niveaux d\u2019att\u00e9nuation th\u00e9oriques :<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.geotellurique.fr\/blog\/attenuation-des-blindage-en-db-explications\/#Comment_mesure_ton_lefficacite_des_blindages\" >Comment mesure t\u2019on l\u2019efficacit\u00e9 des blindages ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.geotellurique.fr\/blog\/attenuation-des-blindage-en-db-explications\/#En_blindant_une_piece_complete_peut-on_vraiment_atteindre_ces_niveaux_defficacite\" >En blindant une pi\u00e8ce compl\u00e8te, peut-on vraiment atteindre ces niveaux d\u2019efficacit\u00e9 ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.geotellurique.fr\/blog\/attenuation-des-blindage-en-db-explications\/#Que_signifie_le_signe_%C2%AB_%E2%80%93_%C2%BB_devant_les_dB\" >Que signifie le signe \u00ab &#8211; \u00bb devant les dB ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.geotellurique.fr\/blog\/attenuation-des-blindage-en-db-explications\/#Comment_calculer_une_attenuation_en_dB\" >Comment calculer une att\u00e9nuation en dB ?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Que_signifient_les_valeurs_dattenuation_en_dB_pour_les_blindages\"><\/span>Que signifient les valeurs d\u2019att\u00e9nuation en dB pour les blindages ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Le niveau d\u2019att\u00e9nuation des blindages est exprim\u00e9 en dB (d\u00e9cibels), une unit\u00e9 math\u00e9matique<br \/>\nlogarithmique (log) qui permet d\u2019\u00e9viter d\u2019utiliser des nombres trop long et peu parlants. Il ne s\u2019agit pas<br \/>\nde d\u00e9cibels acoustiques ou audio, mais ils permettent d&rsquo;exprimer un rapport entre deux grandeurs (avant\/apr\u00e8s).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tableau_de_correspondance_des_niveaux_dattenuation_theoriques\"><\/span>Tableau de correspondance des niveaux d\u2019att\u00e9nuation th\u00e9oriques :<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 10 dB reviennent \u00e0 diviser la puissance du signal par :\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0 10\u00a0 soit une r\u00e9duction de 90 %<br \/>\n&#8211; 20 dB\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0 100\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 99 %<br \/>\n&#8211; 30 dB reviennent \u00e0 diviser la puissance du signal par :\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0 1000\u00a0 soit une r\u00e9duction de\u00a0 99,9 %<br \/>\n&#8211; 40 dB\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0 10 000\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 99,99 %<br \/>\n&#8211; 50 dB reviennent \u00e0 diviser la puissance du signal par :\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0 100 000<br \/>\n&#8211; 60 dB\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0 1 000 000<br \/>\n&#8211; 70 dB reviennent \u00e0 diviser la puissance du signal par :\u00a0\u00a0 \u00a0 10 000 000<br \/>\n&#8211; 80 dB\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 100 000 000<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Comment_mesure_ton_lefficacite_des_blindages\"><\/span>Comment mesure t\u2019on l\u2019efficacit\u00e9 des blindages ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>L\u2019\u00e9valuation de l\u2019efficacit\u00e9 d\u2019un blindage se mesure avant sa mise en place puis apr\u00e8s sa mise en place<br \/>\net non en r\u00e9alisant une mesure de part et d\u2019autre d\u2019un rev\u00eatement de protection anti-ondes (\u00e9cran<br \/>\n\u00e9lectromagn\u00e9tique).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"En_blindant_une_piece_complete_peut-on_vraiment_atteindre_ces_niveaux_defficacite\"><\/span>En blindant une pi\u00e8ce compl\u00e8te, peut-on vraiment atteindre ces niveaux d\u2019efficacit\u00e9 ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Il s\u2019agit ici des att\u00e9nuations th\u00e9oriques mesur\u00e9es en laboratoire en <a href=\"https:\/\/www.tyroremotes.fr\/actualites\/les-telecommandes-testees-dans-une-chambre-anechoique\" target=\"_blank\" rel=\"noopener noreferrer\">chambre an\u00e9cho\u00efque<\/a> pour caract\u00e9riser les mat\u00e9riaux et leur efficacit\u00e9 sur les champs \u00e9lectromagn\u00e9tiques. Dans la r\u00e9alit\u00e9, il est tr\u00e8s difficile d\u2019atteindre ces r\u00e9sultats en raison des fuites dans le blindages ou des parties non prot\u00e9g\u00e9es. Pour cette raison, nous vous<br \/>\nconseillons d\u2019apporter un maximum de soin dans la mise en \u0153uvre des mat\u00e9riaux de protection \u00e9lectromagn\u00e9tique.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/PJ08NdM7uj8\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Que_signifie_le_signe_%C2%AB_%E2%80%93_%C2%BB_devant_les_dB\"><\/span>Que signifie le signe \u00ab &#8211; \u00bb devant les dB ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>On parle d\u2019efficacit\u00e9 de blindage &#8211; 50 dB ou d\u2019une att\u00e9nuation de 50 dB ; le mot \u00ab att\u00e9nuation \u00bb signifie que l\u2019on r\u00e9duit, il remplace donc le symbole \u00ab &#8211; \u00bb.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Comment_calculer_une_attenuation_en_dB\"><\/span>Comment calculer une att\u00e9nuation en dB ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Att\u00e9nuation du champ \u00e9lectromagn\u00e9tique <strong>en puissance<\/strong> = 10 LOG (<strong>puissance<\/strong> sans \u00e9cran \/ <strong>puissance<\/strong> avec \u00e9cran).<\/p>\n<p>Att\u00e9nuation en amplitude du champ \u00e9lectrique (E) ou magn\u00e9tique (H) = 20 LOG (amplitude sans \u00e9cran \/ amplitude avec \u00e9cran).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Que signifient les valeurs d\u2019att\u00e9nuation en dB pour les blindages ? Le niveau d\u2019att\u00e9nuation des blindages est exprim\u00e9 en dB (d\u00e9cibels), une unit\u00e9 math\u00e9matique logarithmique (log) qui permet d\u2019\u00e9viter d\u2019utiliser des nombres trop long et peu parlants. Il ne s\u2019agit pas de d\u00e9cibels acoustiques ou audio, mais ils permettent d&rsquo;exprimer un rapport entre deux grandeurs [&hellip;]<\/p>\n","protected":false},"author":68,"featured_media":1289,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[11],"tags":[],"et_post_format":[],"class_list":["post-586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blindages-electromagnetiques","et-has-post-format-content","et_post_format-et-post-format-standard"],"_wp_attached_file":null,"_wp_attachment_metadata":null,"_wp_attachment_backup_sizes":null,"_wp_attachment_context":null,"_oembed_8095d36c03dd8ead930b81d37d6e8e98":null,"_wp_attachment_image_alt":null,"_et_pb_predefined_layout":null,"_bbp_forum_subforum_count":null,"_bbp_total_reply_count":null,"_bbp_topic_count":null,"_bbp_total_topic_count":null,"_bbp_topic_count_hidden":null,"_bbp_last_topic_id":null,"_private_group":null,"_bbp_total_reply_count_hidden":null,"_et_pb_predefined_default_layout":null,"_et_pb_predefined_default_type":null,"_extra_layout_default":null,"_menu_item_type":null,"_menu_item_menu_item_parent":null,"_menu_item_object_id":null,"_menu_item_object":null,"_menu_item_target":null,"_menu_item_classes":null,"_menu_item_xfn":null,"_menu_item_url":null,"_wp_page_template":null,"slide_template":null,"_et_pb_post_hide_nav":null,"_et_pb_page_layout":null,"_et_pb_side_nav":null,"_oembed_fbe5098a38e310857077e4bd9518ee0b":null,"rank_math_canonical_url":null,"_et_builder_dynamic_assets_loading_attr_threshold":null,"popup_title":null,"enabled":null,"pum_example_popup":null,"popup_settings":null,"data_version":null,"popup_open_count":null,"popup_conversion_count":null,"popup_open_count_total":null,"popup_last_opened":null,"_pum_built_in":null,"_pum_default_theme":null,"popup_theme_data_version":null,"popup_theme_settings":null,"_pum_user_modified":null,"popup_theme_overlay":null,"popup_theme_container":null,"popup_theme_title":null,"popup_theme_content":null,"popup_theme_close":null,"_extra_rating_average":"4.5","_post_review_box_title":"La revue","_post_review_box_summary":"","_post_review_box_summary_title":"R\u00e9sum\u00e9","_post_review_box_breakdowns_score":"0","_post_review_box_breakdowns_count":"1","_post_review_box_breakdowns":[{"title":"","rating":0}],"_extra_rating_count":"3","_yoast_wpseo_primary_category":null,"_ez-toc-disabled":"","_ez-toc-insert":"","_ez-toc-heading-levels":[],"_ez-toc-alttext":"","_ez-toc-exclude":"","rank_math_primary_category":"0","_ez-toc-visibility_hide_by_default":"","_oembed_749fcde2044455117a2697597c901d4a":null,"_oembed_1c071b6b2d57519c4becdbedb8484da8":null,"_oembed_time_1c071b6b2d57519c4becdbedb8484da8":null,"_oembed_12213637bef2a959d4a2178ddab2b645":null,"_oembed_time_12213637bef2a959d4a2178ddab2b645":null,"_oembed_2d8cdef959634189ab90c6b6331ab0da":null,"_oembed_time_2d8cdef959634189ab90c6b6331ab0da":null,"_oembed_1bd35aba03164045392dfde89b97495f":null,"_oembed_time_1bd35aba03164045392dfde89b97495f":null,"_oembed_04423babe915f168e30dbaf31eee82d6":null,"_oembed_time_04423babe915f168e30dbaf31eee82d6":null,"_oembed_e2dac58b91c04f3307bdff122b237535":null,"_oembed_time_e2dac58b91c04f3307bdff122b237535":null,"_oembed_7ef102e21b4e69bf3e92f21d2da26178":null,"_oembed_time_7ef102e21b4e69bf3e92f21d2da26178":null,"_oembed_65f3cc860759c370dbb5a9a6ff36d550":null,"_oembed_522f16fbe69b088b13b19b90101e85ab":null,"_oembed_time_522f16fbe69b088b13b19b90101e85ab":null,"_oembed_7ef8850ce7251d149275729c1f2e5924":null,"_oembed_time_7ef8850ce7251d149275729c1f2e5924":null,"_oembed_4a24465fa2f8a097a79a358f6c1e5f60":null,"_oembed_d44308415ddd5297a3c5f333639c6beb":null,"_oembed_79a4fdbe0396b15581da72ee01396d7d":null,"_oembed_dade171d140aec1e91e5c2751e1d84ee":null,"_oembed_time_dade171d140aec1e91e5c2751e1d84ee":null,"_oembed_2b29abedb5da844628f831c4e78d2554":null,"_oembed_time_2b29abedb5da844628f831c4e78d2554":null,"_ez-toc-header-label":"","_ez-toc-alignment":"none","_ez-toc-hide_counter":"","_ez-toc-position-specific":"","_oembed_09579974edf7a5b17a8f3acb19d5e3c2":null,"_oembed_4d39ae5bf6978e483b2a4e6904c6e350":null,"_oembed_053e7a2e5cd6be4d3b7db7779d21d87e":null,"_oembed_73c5a8e6e6b03f92b8645a68476b6c8c":null,"_oembed_f265d96ad663a2a5d768ae968dbd4f9b":null,"_oembed_e531f60f7f7d8b103a9be20256dc42ca":null,"_oembed_38e062bb1f0cd1f84f5582c58bb3eff6":null,"_oembed_153b902fc86796aa51beb4adbf7b34de":null,"_oembed_d8b39931a3edf9f3de8db22718ee00aa":null,"_oembed_802314b98a73138ead50481339d374c8":null,"_oembed_17e0f1ae86d1d10d77ae9d4f698dcb15":null,"_oembed_b026deefd282a3fecd670dbd021bf7b3":null,"_oembed_d78d24060623fc6a80c549f478cc7447":null,"_oembed_b848de432e06a4a8badd78f98e735104":null,"_oembed_a7dd002581b7dddceded6c0d4dd93bf5":null,"_oembed_2f7c681569df2d4f97b9fb4cdbe80e4b":null,"_oembed_bf836f3c1379cb3a365f247014c52880":null,"_oembed_5c275c653f5eb0625a26eedde66b3a96":null,"_oembed_time_5c275c653f5eb0625a26eedde66b3a96":null,"_oembed_8a6bd33a60b4166f209fddf50fbb9feb":null,"_oembed_time_8a6bd33a60b4166f209fddf50fbb9feb":null,"_oembed_68c4f06a16b982e9ce2965ec94dc036d":null,"_oembed_time_68c4f06a16b982e9ce2965ec94dc036d":null,"_oembed_e8847fdaa016826363a81ab24559637b":null,"rank_math_contentai_score":null,"_oembed_8c245f8ec246307bab3688925d117ffc":null,"_oembed_time_48ef09d280c21bb057113c047401f73d":null,"_oembed_time_bdfa63b0877d35868422b67871ba7a15":null,"_oembed_time_7916619f1633d7bbb85549375ffcf0a9":null,"_oembed_48ef09d280c21bb057113c047401f73d":null,"_ez-toc-device-target":"","_bbp_voice_count":null,"_bbp_subscription":null,"_bbp_engagement":null,"_directory_id":null,"_attached_image":null,"_attached_images_order":null,"_content_field_11":null,"_content_field_10":null,"_content_field_9":null,"_content_field_6":null,"_content_field_12":null,"_content_field_7":null,"_content_field_8":null,"_attached_image_as_logo":null,"_requires_moderation":null,"_listing_created":null,"_order_date":null,"_listing_status":null,"_clicks_data":null,"_total_clicks":null,"_location_id":null,"_address_line_1":null,"_address_line_2":null,"_zip_or_postal_index":null,"_additional_info":null,"_manual_coords":null,"_map_coords_1":null,"_map_coords_2":null,"_map_icon_file":null,"_map_zoom":null,"_w2dc_rating_86.203.107.220":null,"_w2dc_avg_rating":null,"_place_id":null,"_attached_video_id":null,"_w2dc_rating_82.125.12.205":null,"_w2dc_rating_88.173.34.68":null,"_w2dc_rating_79.148.212.154":null,"_w2dc_rating_46.193.65.142":null,"_w2dc_rating_90.21.48.35":null,"_w2dc_rating_93.22.151.185":null,"_w2dc_rating_92.184.105.233":null,"_yoast_wpseo_primary_w2dc-category":null,"_yoast_wpseo_primary_w2dc-location":null,"_w2dc_rating_86.217.53.28":null,"_w2dc_rating_92.138.193.179":null,"_w2dc_rating_91.171.135.117":null,"_w2dc_rating_45.141.123.154":null,"_w2dc_rating_88.175.84.134":null,"_w2dc_rating_176.150.38.129":null,"_w2dc_rating_92.184.105.83":null,"_w2dc_rating_92.184.123.36":null,"_w2dc_rating_90.60.118.94":null,"_w2dc_rating_133":null,"_w2dc_rating_88.168.22.193":null,"_w2dc_rating_68":null,"_w2dc_rating_92.184.98.136":null,"_w2dc_rating_145.242.20.128":null,"_model":null,"_columns_num":null,"_bg_color":null,"_bg_transparency":null,"_text_color":null,"_elements_color":null,"_elements_color_secondary":null,"_use_overlay":null,"_on_shop_page":null,"_auto_submit":null,"_use_border":null,"_scroll_to":null,"_sticky_scroll":null,"_sticky_scroll_toppadding":null,"_use_ajax":null,"_target_url":null,"_used_by":null,"rank_math_news_sitemap_robots":"index","rank_math_robots":["index"],"rank_math_primary_w2dc-category":null,"rank_math_primary_w2dc-location":null,"_wp_old_slug":null,"_et_pb_built_for_post_type":null,"_edit_lock":"1755857326:68","_edit_last":"68","_bbp_last_active_time":null,"_bbp_reply_count":null,"_bbp_last_reply_id":null,"_bbp_last_active_id":null,"_bbp_reply_count_hidden":null,"rank_math_internal_links_processed":"1","_et_pb_use_builder":"","_et_pb_old_content":"","_et_monarch_override":null,"_et_pb_enable_shortcode_tracking":"","_et_pb_custom_css":"","_yoast_wpseo_content_score":null,"_et_builder_version":"BB|Divi|3.29.3","_extra_sidebar_location":"","_extra_sidebar":"","_et_pb_ab_subjects":null,"_et_pb_ab_current_shortcode":null,"_et_pb_show_page_creation":null,"_et_pb_gutter_width":"3","_global_colors_info":null,"_yoast_wpseo_estimated-reading-time-minutes":null,"_yoast_wpseo_wordproof_timestamp":null,"ao_post_optimize":{"ao_post_optimize":"on","ao_post_js_optimize":"on","ao_post_css_optimize":"on","ao_post_ccss":"on","ao_post_lazyload":"on","ao_post_preload":""},"_et_pb_ab_stats_refresh_interval":"hourly","_yoast_wpseo_focuskw":null,"_yoast_wpseo_title":null,"_yoast_wpseo_linkdex":null,"_yoast_wpseo_metadesc":null,"rank_math_title":"Att\u00e9nuation des blindages en dB - Explications - Le blog","rank_math_description":"Attenuation des blindage en db explications : informations v\u00e9rifi\u00e9es et retours d'exp\u00e9rience par les experts de Geotellurique.fr. Guide pratique pour votre.","rank_math_focus_keyword":null,"rank_math_seo_score":"12","rank_math_og_content_image":null,"et_enqueued_post_fonts":{"family":{"et-gf-poppins":"Poppins:100,100italic,200,200italic,300,300italic,regular,italic,500,500italic,600,600italic,700,700italic,800,800italic,900,900italic","et-gf-kanit":"Kanit:100,100italic,200,200italic,300,300italic,regular,italic,500,500italic,600,600italic,700,700italic,800,800italic,900,900italic"},"subset":["latin","latin-ext"],"cache_key":"{\"gph\":-1,\"divi\":\"4.27.5\",\"wp\":\"6.9.4\",\"enable_all_character_sets\":\"false\"}"},"_thumbnail_id":"1289","_wp_old_date":"2020-02-04","_bbp_akismet_result":null,"_bbp_akismet_history":null,"_bbp_forum_id":null,"_bbp_topic_id":null,"_bbp_author_ip":null,"_links":{"self":[{"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/posts\/586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/users\/68"}],"replies":[{"embeddable":true,"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/comments?post=586"}],"version-history":[{"count":12,"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/posts\/586\/revisions"}],"predecessor-version":[{"id":2041,"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/posts\/586\/revisions\/2041"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/media\/1289"}],"wp:attachment":[{"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/media?parent=586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/categories?post=586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/tags?post=586"},{"taxonomy":"et_post_format","embeddable":true,"href":"https:\/\/www.geotellurique.fr\/blog\/wp-json\/wp\/v2\/et_post_format?post=586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}