Paper Number
PO38 

Session
Poster Session

Title
Extensional rheometry with a handheld mobile device

Presentation Date and Time
October 11, 2017 (Wednesday) 6:30

Track / Room
Poster Session / Cripple Creek Ballroom

Authors (Click on name to view author profile)

1. Marshall, Kristin A. (Oregon State University)
2. Liedtke, Aleesha M. (Oregon State University)
3. Walker, Travis W. (Oregon State University, CBEE)

Author and Affiliation Lines (in printed abstract book)
Kristin A. Marshall, Aleesha M. Liedtke, and Travis W. Walker
CBEE, Oregon State University, Corvallis, OR 97331

Speaker / Presenter 
Walker, Travis W.

Text of Abstract
The on-site characterization of complex fluids is important for a number of academic and industrial applications. Consequently, a need exists to develop portable rheometers that can provide in-the-field diagnostics and serve as tools for rapid quality assurance. With the advancement of smartphone technology and the widespread global ownership of smart devices, mobile applications are attractive as platforms for rheological characterization. The present work investigates the use of a smartphone device for the extensional characterization of a series of Boger fluids composed of glycerol/water and poly(ethylene oxide), taking advantage of the increasing high-speed video capabilities (currently up to 240 Hz capture rate at 720p) of smartphone cameras. We report a noticeable difference in the characterization of samples with slight variations in polymer concentration and discuss current device limitations. Potential benefits of a handheld extensional rheometer include its use as a point-of-care diagnostic tool, especially in developing communities, as well as a simple and inexpensive tool for assessing product quality in industry.