A multi-axis confocal rheoscope for studying shear flow of structured fluids.

  title={A multi-axis confocal rheoscope for studying shear flow of structured fluids.},
  author={Neil Y.C. Lin and Jonathan H. McCoy and Xiang Cheng and Brian D. Leahy and Jacob N. Israelachvili and Itai Cohen},
  journal={The Review of scientific instruments},
  volume={85 3},
  • N. Y. Lin, J. McCoy, +3 authors I. Cohen
  • Published 21 March 2014
  • Materials Science, Medicine, Physics
  • The Review of scientific instruments
We present a new design for a confocal rheoscope that enables uniform uniaxial or biaxial shear. The design consists of two precisely positioned parallel plates with a gap that can be adjusted down to 2 ±0.1 μm, allowing for the exploration of confinement effects. By using our shear cell in conjunction with a biaxial force measurement device and a high-speed confocal microscope, we are able to measure the real-time biaxial stress while simultaneously imaging the material three-dimensional… 
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