MICRO-VISCOSIMETER Russian patent published in 1995 - IPC

FIELD: measuring equipment. SUBSTANCE: micro-viscosimeter has stator with cylindrical outer working surface and rotor with cylindrical inner surface. The rotor is suspended and mounted coaxially to the stator, the space between them being filled with fluid to be tested. The stator, rotor, and drop of the fluid can be set in a pressure-tight thermostatically controlling jacket connected with a thermostatically controlling circuit. The pickup of rotation period of the rotor can be constructed as two fibre light guides secured in the wall of the thermostatically controlling jacket at the rotor level and reflector positioned on the outer side of the rotor. One of the light guides is connected with a light source, and the other one is connected with a light-sensitive element. EFFECT: improved accuracy of measurements. 6 cl, 1 dwg