DHR2 Rheometer (DHR)

Discovery Hybrid Rheometer 2 (DHR-2) is an advanced rotational rheometer with a combined motor and transducer (CMT) design. It has a patented drag-cup motor, the second generation of magnetic bearing, a force-rebalance transducer (FRT) for normal force control, and a true position sensor (TPS) combined in a single-head hybrid rheometer. It is a powerful tool for characterizing the flow properties of liquids and the mechanical properties of soft solids such as gels.

Available measurements
Steady flow
Viscosity
Newtonian/non-Newtonian behavior
Dilatant/pseudoplastic behavior
Oscillatory measurements
Storage and Loss moduli, loss factor (tan delta)
Thermomechanical spectrum
Linear viscoelasticity region (LVR)
Rubbery plateau modulus
Reptation time
Gelation point, crossover modulus, frequency, temperature
Small and large amplitude oscillatory shear (SAOS, LAOS)
Creep (constant stress deformation)
Stress relaxation
Temperature tests
Combined tests