Device at a torque meter

G - Physics – 01 – N

Patent

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Details

G01N 11/14 (2006.01) G01L 3/00 (2006.01) G01N 15/06 (2006.01) G01N 33/34 (2006.01) H02P 5/52 (2006.01)

Patent

CA 2675447

The present invention relates to a device for a torque meter for determining of for example viscosity, shearing force or concentration of liquids or suspensions, and comprising two elastically connected concentric axles, one external hollow axle (6) through which an inner meter axle (5) extends, on which latter an element (4) responsive to the measurement medium (3) is located. According to the invention the axles (6, 5) are propelled by an electrical motor (9, 10), said motors are at least on average continuously propelled at equal rotational speed at the same time the phase between the two is being controlled irrespective of the applied speed and torque, wherein the torque is possible to measure through the degree of load at the motor (10) propelling the inner axle (5), which is transformable to a suitable out signal.

La présente invention se rapporte à un dispositif destiné à un torsiomètre en vue de, par exemple, la détermination d'une viscosité, d'une force de cisaillement ou de la concentration de liquides ou de suspensions et comprenant deux axes concentriques raccordés élastiquement, un axe creux extérieur (6) au travers duquel s'étend un axe (5) de mesure intérieur, ce dernier sur lequel est situé un élément (4), sensible au milieu de mesure (3). Conformément à l'invention, les axes (6, 5) sont propulsés par un moteur électrique (9, 10), lesdits moteurs étant en moyenne au moins propulsés en même temps de manière continue à une vitesse de rotation égale, la phase entre les deux étant commandée indépendamment de la vitesse et du couple appliqués, où il est possible de mesurer le couple au travers du degré de charge un niveau du moteur (10) propulsant l'axe intérieur (5), couple qui peut être transformé en un signal de sortie approprié.

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