Features & Benefits

• Vane spindle geometry allows spindle insertion without compromising sample structure
• Easy-to-test method for materials with particulates, slurries, and stiff pastes
• Provides data that relates to viscoelastic characteristics such as yield stress, shear modulus (stiffness of material structure when intact) and creep
• Quantifies meaningful properties like wobbliness, sloppiness, consistency and texture
• Automated data analysis under PC control
• Rugged design for years of trouble-free operation in QC and R&D applications
• Can also be used with coaxial cylinders for flow curve analysis
• Optional Rheo200 software with Soft Solids Module allows you to program the R/S Plus Soft Solids Tester and generate data such as yield point, shear modulus, creep and relaxation

1. Constant Rate Yield Test

2. The Creep/Recovery Test

For Products Like

Gels, lumpy products like custard, gravy, sauces and jams

Properties Measured

Instantaneous Strain, Viscous Creep, Elastic Recovery, Permanent Flow

Test Description

This is a Constant Stress Test. The Stress (torque) is applied to the sample for a fixed time period, usually from one to five minutes. The degree of sample movement is recorded against time as Angular Displacement, Strain or Compliance. The Stress is removed and the Elastic Recovery and Permanent Flow is determined.

Example Method for Fruit Preserves

Constant Stress of 1,250 Pa is applied over 120 seconds and 60 data points are taken. The stress is then removed and 60 data points are taken for another 120 seconds.

Typical Results Plot

 

Consult with Brookfield to determine if the Soft Solids Tester with Vane Spindle Geometry is a suitable solution to your testing needs.

 

Spindle Ranges