{"id":5988,"date":"2022-04-22T22:15:59","date_gmt":"2022-04-22T20:15:59","guid":{"rendered":"https:\/\/www.hdebalzac.fr\/?p=5988"},"modified":"2022-06-03T19:57:55","modified_gmt":"2022-06-03T17:57:55","slug":"assurer-la-maintenance-des-ph-metres-en-1ere-bac-pro-lcq","status":"publish","type":"post","link":"https:\/\/www.hdebalzac.fr\/index.php\/2022\/04\/22\/assurer-la-maintenance-des-ph-metres-en-1ere-bac-pro-lcq\/","title":{"rendered":"Assurer la maintenance des pH-m\u00e8tres en 1\u00e8re Bac Pro LCQ"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Les \u00e9l\u00e8ves de premi\u00e8re Baccalaur\u00e9at Professionnel Laboratoire Contr\u00f4le Qualit\u00e9 assurent la maintenance des pH-m\u00e8tres utilis\u00e9s en travaux pratiques lors des analyses et dosages acido-basiques.<\/strong><br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour cela, ils calibrent en trois points (pH 7, 4 et 10) le bo\u00eetier du pH-m\u00e8tre avec un simulateur mV\/pH artisanal.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_boitier-1-1024x1024.jpg\" alt=\"\" class=\"wp-image-6209\" srcset=\"https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_boitier-1-1024x1024.jpg 1024w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_boitier-1-300x300.jpg 300w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_boitier-1-150x150.jpg 150w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_boitier-1-768x768.jpg 768w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_boitier-1-1536x1536.jpg 1536w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_boitier-1-2048x2048.jpg 2048w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_boitier-1-600x600.jpg 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>Calibration du bo\u00eetier pH.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-2-1024x1024.jpg\" alt=\"\" class=\"wp-image-6212\" srcset=\"https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-2-1024x1024.jpg 1024w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-2-300x300.jpg 300w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-2-150x150.jpg 150w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-2-768x768.jpg 768w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-2-1536x1536.jpg 1536w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-2-2048x2048.jpg 2048w, https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-2-600x600.jpg 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>Mesure de la fem de la sonde pH.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Puis ils mesurent la force \u00e9lectromotrice (fem) de la sonde pH gr\u00e2ce \u00e0 un amplificateur op\u00e9rationnel (AOP) mont\u00e9 en suiveur de tension.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A partir des r\u00e9gressions lin\u00e9aires, ils valident la conformit\u00e9 du d\u00e9calage et de la pente du pH-m\u00e8tre.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-video\"><video height=\"1080\" style=\"aspect-ratio: 1920 \/ 1080;\" width=\"1920\" controls src=\"https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/05\/pHmetre_boitier.mp4\"><\/video><figcaption>Calibration du bo\u00eetier pH.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-video\"><video height=\"1080\" style=\"aspect-ratio: 1920 \/ 1080;\" width=\"1920\" controls src=\"https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/05\/pHmetre_sonde.mp4\"><\/video><figcaption>Mesure de la fem de la sonde pH.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">En bonus, ils peuvent diagnostiquer l&rsquo;amplificateur op\u00e9rationnel \u00e0 l&rsquo;aide d&rsquo;un testeur exp\u00e9rimental.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le simulateur mV\/pH, les connecteurs BNC et le testeur AOP sont des prototypes fabriqu\u00e9s par leur enseignant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les \u00e9l\u00e8ves de premi\u00e8re Baccalaur\u00e9at Professionnel Laboratoire Contr\u00f4le Qualit\u00e9 assurent la maintenance des pH-m\u00e8tres utilis\u00e9s en travaux pratiques lors des analyses et dosages acido-basiques. Pour cela, ils calibrent en trois [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":6211,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","omw_enable_modal_window":"enable","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[3],"tags":[36,23],"class_list":["post-5988","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-formation","tag-prototypes","tag-travaux-pratiques","entry","has-media"],"jetpack_featured_media_url":"https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2022\/04\/pH_sonde-1-scaled.jpg","views":"","publishpress_future_action":{"enabled":false,"date":"2026-06-01 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