{"id":1192,"date":"2025-07-18T10:54:32","date_gmt":"2025-07-18T08:54:32","guid":{"rendered":"https:\/\/schaefer-scientific.com\/?post_type=product&p=1192"},"modified":"2026-02-09T09:49:53","modified_gmt":"2026-02-09T07:49:53","slug":"ponts-de-capacite","status":"publish","type":"product","link":"https:\/\/schaefer-scientific.com\/fr\/product\/capacitance-bridges","title":{"rendered":"Ponts de capacit\u00e9"},"content":{"rendered":"
\n
\n

Ponts de mesure de capacit\u00e9 de pr\u00e9cision<\/h2>\n\n\n\n

Les ponts de mesure de capacit\u00e9 du fabricant Andeen-Hagerling offrent une r\u00e9solution de capacit\u00e9 inf\u00e9rieure \u00e0 l'attofarad (10-18<\/sup> F !)<\/p>\n\n\n\n

Ces ponts de mesure ont fait leurs preuves depuis de nombreuses ann\u00e9es dans un large \u00e9ventail d'applications et sont \u00e0 la base des publications correspondantes :<\/p>\n\n\n\n

    \n
  • Caract\u00e9risation di\u00e9lectrique<\/li>\n\n\n\n
  • Capacit\u00e9 quantique
    (nanotubes de carbone, nanofils, points quantiques, graph\u00e8ne)<\/li>\n\n\n\n
  • Dilatom\u00e9trie, dilatation thermique, magn\u00e9torestriction<\/li>\n\n\n\n
  • Ferro\u00e9lectriques, multiferro\u00efques<\/li>\n\n\n\n
  • Cristaux liquides<\/li>\n\n\n\n
  • Physique des basses temp\u00e9ratures<\/li>\n\n\n\n
  • Effets magn\u00e9tor\u00e9sistifs, capacit\u00e9 magn\u00e9tique<\/li>\n\n\n\n
  • Magn\u00e9tom\u00e9trie<\/li>\n\n\n\n
  • D\u00e9tection de nano-force\/m\u00e9trologie<\/li>\n\n\n\n
  • Transition verre\/verre-liquide<\/li>\n\n\n\n
  • M\u00e9trologie \u00e9lectrique et capacitaire<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n
    \n
    \n

    Sp\u00e9cifications g\u00e9n\u00e9rales
    (Option-E : avec une meilleure pr\u00e9cision)<\/h2>\n\n\n\n
      \n
    • Facteur de dissipation mesurable jusqu'\u00e0 1,5 \u00d7 10-8<\/sup>\u00a0tan(\u03b4), conductivit\u00e9 3 \u00d7 10-7<\/sup>\u00a0nanosiemens - \u00e9quivalent \u00e0 une r\u00e9sistance de 1,7 \u00d7 106\u00a0<\/sup>G\u03a9<\/li>\n\n\n\n
    • Sortie analogique (3 kHz \u00e0 3 dB)<\/li>\n\n\n\n
    • Plages de mesure de perte et de capacit\u00e9 n\u00e9gatives pour mesurer des \u00e9chantillons inhabituels ou des r\u00e9seaux \u00e0 3 bornes<\/li>\n\n\n\n
    • Commutation (inversion du signal d'essai) pour minimiser les influences externes du r\u00e9seau ou d'autres signaux p\u00e9riodiques.<\/li>\n\n\n\n
    • Interfaces s\u00e9rie IEEE-GPIB et IEEE-1174<\/li>\n\n\n\n
    • Programmable (peut ne pas n\u00e9cessiter de contr\u00f4leur externe)<\/li>\n\n\n\n
    • \u00c9cart - mesures (capacit\u00e9, perte - ou les deux)<\/li>\n\n\n\n
    • Biais DC externe jusqu'\u00e0 +\/- 100 V<\/li>\n\n\n\n
    • Capacit\u00e9s standard de r\u00e9f\u00e9rence disponibles - Mod\u00e8le\u00a0AH 1100<\/strong><\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n
      \n
      \n

      Multifr\u00e9quence<\/h2>\n\n\n\n
      Mod\u00e8les<\/th>AH 2700A
      (Option-E)<\/th>      		AH 2700A Option-C
      (Option-E)<\/th><\/tr><\/thead>
      R\u00e9ponse en fr\u00e9quence<\/td>50 Hz - 20 KHz<\/td>50 Hz - 20 KHz<\/td><\/tr>
      Fr\u00e9quences de mesure<\/td>33 fr\u00e9quences pr\u00e9r\u00e9gl\u00e9es<\/td>continu<\/td><\/tr>
      R\u00e9solution Capacit\u00e9<\/td>jusqu'\u00e0 Sub aF
      (atto Farad)<\/td>      		jusqu'\u00e0 Sub aF
      (atto Farad)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
      \n
      \"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n
      \n
      \n

      Fr\u00e9quence unique<\/h2>\n\n\n\n
      Mod\u00e8le<\/th>AH 2550A<\/th><\/tr><\/thead>
      R\u00e9ponse en fr\u00e9quence<\/td>1 KHz<\/td><\/tr>
      Fr\u00e9quences de mesure<\/td>1 KHz<\/td><\/tr>
      Capacitance R\u00e9solution<\/td>bis Sub aF (atto Farad)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
      \n
      \"\"<\/figure>\n<\/div>\n<\/div>","protected":false},"featured_media":1193,"template":"","meta":{"_acf_changed":true},"application":[43],"manufacturer":[44],"product-category":[26],"class_list":["post-1192","product","type-product","status-publish","has-post-thumbnail","hentry","application-precision-capacitance-measurement","manufacturer-andeen-hagerling-inc","product-category-measurement-and-control"],"acf":[],"yoast_head":"\nCapacitance bridges - Schaefer Scientific<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/schaefer-scientific.com\/fr\/produit\/ponts-de-capacite\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Capacitance bridges - Schaefer Scientific\" \/>\n<meta property=\"og:description\" content=\"Precision capacitance measuring bridges The capacitance measuring bridges from the manufacturer Andeen-Hagerling offer a capacitance resolution down to the sub-attofarad (10-18 F!) 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