La chute et la fin du chemin perdu – pastilles 4 et 9<\/li>\n<\/ul>\n <\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n
Note<\/h5>\n
Le mouvement du balancier (entrain\u00e9 par le capteur MuT.03 \u00e0 1 tr\/min) ne correspond pas \u00e0 la vitesse r\u00e9elle de l’\u00e9chappement (dict\u00e9e par le couple fourni par le barillet). Ceci cr\u00e9e un d\u00e9calage lors de la chute et la roue d’\u00e9chappement arrive sur le plan d’impulsion de la palette oppos\u00e9e au lieu du plan de repos. La fin du chemin perdu s’en trouve donc rallong\u00e9, cr\u00e9ant un pic de couple. La vid\u00e9o ci-dessous permet d’observer les diff\u00e9rentes phases de l’\u00e9chappement en temps r\u00e9el.<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2″ _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n
\u00c9volution de l’\u00e9nergie<\/h1>\n\u00c9nergie – temps<\/h2>\n
La courbe \u00e9nergie en fonction du temps (ci-contre) permet de mettre en lumi\u00e8re le bilan d’\u00e9nergie au niveau du balancier.<\/p>\n
L’effet du ressort spiral ayant \u00e9t\u00e9 supprim\u00e9 il ne reste plus que les variations de couples dues aux mouvements de l’ancre et de la roue d’\u00e9chappement.<\/p>\n
Une pente n\u00e9gative montre une perte d’\u00e9nergie du balancier, une pente positive implique un gain d’\u00e9nergie.<\/p>\n
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[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/www.nrctech.ch\/wp-content\/uploads\/2025\/02\/TBP01-90-PCE-Energie.png\u00a0\u00bb title_text=\u00a0\u00bbTBP01-90-PCE-Energie\u00a0\u00bb _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/www.nrctech.ch\/wp-content\/uploads\/2025\/02\/TBP01-90-PCE-Energie_temps-1.png\u00a0\u00bb title_text=\u00a0\u00bbTBP01-90-PCE-Energie_temps\u00a0\u00bb _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n
\u00c9nergie par phase<\/h2>\n
Du graphique pr\u00e9c\u00e9dent (\u00e9nergie-temps) il est possible de tirer l’\u00e9nergie totale gagn\u00e9e et perdue par le balancier pour chacune des phases observ\u00e9es.<\/p>\n
Lors des phases d’impulsion, l’\u00e9nergie est transmise du rouage (barillet) au balancier.<\/p>\n
Les phases de d\u00e9gagements et de chute et fin du chemin perdu sont celles pr\u00e9sentent une perte d’\u00e9nergie (le balancier doit vaincre les frottement et la pouss\u00e9e du barillets).<\/p>\n
Le bilan final des \u00e9changes d’\u00e9nergie est de +0.19 mJ, le balancier fini donc avec un surplus d’\u00e9nergie.<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1″ _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb18px|||||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb0px|||||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_video src=\u00a0\u00bbhttps:\/\/www.nrctech.ch\/wp-content\/uploads\/2025\/02\/TBP01-90-PCE_1080p_v5.mp4″ _builder_version=\u00a0\u00bb4.25.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_video][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"
EM02: Mesure du couple \u00e0l\u2019\u00e9chappement MuT.03 – Exemple d’application La mesure du couple \u00e0 l’\u00e9chappement donne une image int\u00e9ressante du fonctionnement de l’\u00e9chappement d’un mouvement horloger. Les diff\u00e9rentes phases du mouvement de l’ancre et du balancier peuvent \u00eatre analys\u00e9es. Cette mesure a \u00e9t\u00e9 r\u00e9alis\u00e9e sur un Torkbench PRO \u00e9quip\u00e9 d’un module MuT.03 A24W.1W (\u00b1240 uNm) […]<\/p>\n","protected":false},"author":1,"featured_media":30500,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"project_category":[17],"project_tag":[],"class_list":["post-30493","project","type-project","status-publish","has-post-thumbnail","hentry","project_category-horlogerie"],"_links":{"self":[{"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=\/wp\/v2\/project\/30493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=\/wp\/v2\/project"}],"about":[{"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=\/wp\/v2\/types\/project"}],"author":[{"embeddable":true,"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30493"}],"version-history":[{"count":24,"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=\/wp\/v2\/project\/30493\/revisions"}],"predecessor-version":[{"id":31537,"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=\/wp\/v2\/project\/30493\/revisions\/31537"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=\/wp\/v2\/media\/30500"}],"wp:attachment":[{"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30493"}],"wp:term":[{"taxonomy":"project_category","embeddable":true,"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fproject_category&post=30493"},{"taxonomy":"project_tag","embeddable":true,"href":"https:\/\/www.nrctech.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fproject_tag&post=30493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}