Strain Rheometry Sample Testing

In a strain rheometer shear is generated between a moving and a fixed solid surface, typically under rotary motion. When a fluid is placed between these surfaces a drag flow is created and the shear deformation in the fluid can be used to estimate its rheological properties. Various geometries are available in traditional strain rheometers. The most common rheometers include parallel disks (plate and plate), cone and plate, or concentric cylinder geometries. Sliding plates, falling ball, rolling ball and other concentric geometries are also used.

Strain rheometry capabilities include:

Conventional geometries as well as fixtures for solids, melts and curable resins
Extensional viscosity measurement
Dynamic mechanical analysis (DMA)
Double wall Couette for very low viscosity samples
High viscosity fluids and solids testing in steady rotational and dynamic modes
Falling needle viscometer, ideal for solutions containing low boiling point components