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Question: Rheometer vs. VROC

Posted by RheoSense on Feb 11, 2020 6:00:00 AM

In VROC Technology

I recently had a customer who asked how VROC® technology measures viscosity compared to a rheometer that measures shear stress and also control shear rate. From the controls, the rheometer will then calculate viscosity. Similar to the rheometer, VROC® powered viscometers will measure the pressure drop to measure shear stress and use flow rates to control the flow. Essentially the ideas are parallel in the fact that VROC® measures the pressure drop and rheometers will measure torque so you will not need to readjust your expectations when working with VROC® technology.

Additional comparisons and benefits of using VROC® would be: 

  • Require just a few micro-liters per measurement
  • Allow characterization of both Newtonian & non-Newtonian fluids
  • Enable high shear rates without flow instabilities 
  • Prevent evaporation and contamination of samples 
  • Render high throughput due to a simple flow-through design

For more information on our technology, visit our technology page here.

*Check out our application note where we compare the cone and plate rheometer with VROC powered, m-VROC!