File:Rotational rheometers-Couette-Searle-Plate plate-Cone plate types.png

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Français : Rhéomètres à rotation :
  • géométrie de cylindres coaxiaux, types :
    • Couette : le rotor inférieur impose la sollicitation [(gradient de) vitesse ou déformation] ; le stator supérieur mesure le couple,
    • et Searle : le rotor supérieur impose la sollicitation [(gradient de) vitesse, contrainte ou déformation] et mesure la grandeur complémentaire ;
  • géométrie de type plateaux parallèles (P-P) et cône-plan (C-P).

La majorité des viscosimètres à rotation sont du type « Searle » ; ils sont souvent qualifiés à tort de « Couette ».
R = rayon.
M(t) = (système de mesure du) couple de rotation sur le stator (type Couette) ou sur le rotor (type Searle).
Ω(t) = vitesse angulaire de rotation du rotor.
La partie mobile (rotor) est en rouge-orangé, le fluide en bleu clair et la partie fixe (stator) en bleu foncé.

Note : le système de mesure du couple n'est pas représenté pour les géométries P-P et C-P.
English: Rotational rheometers: Couette, Searle, plate-plate (P-P) and cone-plate (C-P) types.
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Author Cjp24
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Schematic representation: Couette rotational rheometer, plate plate and cone plate systems.
Schematic representation: rheometer with coaxial cylinders.

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current11:52, 27 February 2012Thumbnail for version as of 11:52, 27 February 20121,073 × 711 (30 KB)Cjp24 (talk | contribs)Correction
16:10, 24 February 2012Thumbnail for version as of 16:10, 24 February 20121,073 × 711 (30 KB)Cjp24 (talk | contribs)

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