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RheoSense Blog: In Viscosity News...

RheoSense Blog

Difference Between Shear & Extensional Viscosity

Posted by RheoSense

2019-03-13 10:00 AM

As you know by now, viscosity is NOT just one number.

Viscosity is a defined property based on the type of continuous deformation applied. Although a steady shear flow is the most common characterization, extensional flow fields can also be used to analyze extensional viscosity. 

Join our upcoming webinar where we will:

  • Clarify the difference between the steady shear and extensional viscosity
  • Discuss how the RheoSense product line is capable of measuring both types
  • Emphasize important points to consider when interpreting data


In this webinar, we will be introducing the e-VROC Chip: Shear Viscosity's Distant Cousin. 

e-VROC Chip


The e-VROC™ chip is engineered with a microfluidic channel of uniform width and depth. It has hyperbolic contraction/expansion zone in the middle of the channel and four monolithically integrated MEMS pressure sensors (two in the upstream and two in the downstream of the contraction/expansion zone). 



Spots are limited so don't miss this opportunity and join us on

Wednesday March 20, 2019, 11:00 am PST 

Sign up for Webinar

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Before attending the webinar, we recommend checking out the application note on extensional viscosity. Access it for free by clicking the button to the right!  


Topics: VROC Technology, General Information, RheoSense News, viscosity, technical webinar, Technical Information