Technique: Rheology
Acquisition year: 2007
Contact person (Joanneum Research): Barbara Stadlober (barbara.stadlober@joanneum.at)
Responsible: Paul Patter (paul.patter@joanneum.at)
Description:
The Brookfield DV-III Ultra Programmable Rheometer measures fluid parameters of Shear Stress and Viscosity at given Shear Rates. Viscosity is a measure of a fluid’s resistance to flow. The principle of operation of the DV-III Ultra 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 viscosity measurement range of the DV-III Ultra (in centipoise or cP) 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. The DV-III Ultra can also measure yield stress (in Pascals or Pa).
Specifications:
- sample size: 20 mL
- Speed range: 0.01 – 250 rpm
- Temperature sensing rage: -100°C – 300°C
Link for additional information:
