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Présentation de la chaîne de mesure

Présentation de la chaîne de mesure. capteur. adaptateur. codage. comparaison. acquisition. Port. Rctn = f 1 ( q ) analogique. np < U( q ) < (n+1)p discrétisé p = Uref/(nbre de R). U( q ) codé en binaire. Acquisition de tension numérique. Traitement q = f 3 (U). U = f 2 ( q )

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Présentation de la chaîne de mesure

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  1. Présentation de la chaîne de mesure

  2. capteur adaptateur codage comparaison acquisition Port Rctn = f1(q) analogique np < U(q) < (n+1)p discrétisé p = Uref/(nbre de R) U(q) codé en binaire Acquisition de tension numérique Traitement q = f3(U) U = f2(q) analogique conversion analogique- numérique Traitement informatique

  3. Uref R - + Rp U0 U R R - + R Ou exclusif - + Rp R - + Rp R Ou exclusif Rp Port parallèle Rp Rp Rctn = f1(q) analogique np < U(q) < (n+1)p discrétisé p = Uref/(nbre de R) U(q) codé en binaire Acquisition de tension numérique Traitement q = f3(U) U = f2(q) analogique Ou exclusif Ou Rp Ou exclusif capteur adaptateur comparaison codage acquisition traitement

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