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Extensional Viscosity

Posted by RheoSense on Aug 15, 2014 2:57:03 PM

In Product Release

Extensional Viscosity

Ideal for studying the complex properties of fluids

By monitoring the sample flow through a microfluidic contraction, the system measures the pressure upstream and downstream of a contraction using the MEMS pressure sensors and registers changes in the flow. 

Extensional Viscometer, e-VROC

As depicted in the image, the fluid experiences shear flow in the straight channel and then an almost constant extension in the contraction zones.


  • Fiber Extrusion Spinnerets
  • Paint Rolling 
  • Blow Molding 
  • Ink Jet Printer Nozzles
  • Sheet or Film Drawing 
  • Flow through a Porous Media

 Learn More About e-VROC