DV-III+ Viscometer

The principle of operation of the DV-III+ is to drive a spindle (which is immersed in the test fluid) through a calibrated spring. The viscous drag of the fluid against the spindle is measured by the spring deflection. Spring deflection is measured with a rotary transducer. The measuring range of a DV-III+ (in centipoise) is determined by the rotational speed of the spindle, the size and shape of the spindle, the container the spindle is rotating in, and the full scale torque of the calibrated spring。Viscosity of different oil used in the lab can be measured by using the DV-III+ ULTRA RHEOMETER.

Fig.1 DV-III+ Viscometer

Fig.2 The curve for the relationship between the viscosity of glycerol at different concentrations and time

Fig.3 The curve for the relationship between the viscosity of glycerol at different concentrations and temperature