ROTATIONAL VISCOSIMETER Russian patent published in 1996 - IPC

FIELD: chemical, petrochemical and food industries. SUBSTANCE: rotational viscosimeter has immobile outer and mobile inner cylinders mounted coaxially made from dielectric material. Inner cylinder houses bar magnetic circuit with winding, two lamellas attached to side surface of this cylinder connected to winding of magnetic circuit. Hollow shaft protruding above surface of inner cylinder and freely mounted on axle anchored in center of bottom of immobile cylinder is installed along axis of inner cylinder. Brushes positioned diametrically opposite on inner surface outside of immobile cylinder at level of lamellas are connected to source of constant voltage and are submerged into electrolyte that does not interact and does not mix with examined medium. EFFECT: expanded measurement range by decrease of friction in bearings of inner cylinder. 5 dwg