True Shear Parallel Plate Viscometer

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  • Summary:
    This viscometer (which can also be used as a rheometer) is designed for use with liquids over a large temperature range. The device consists of horizontally disposed, similarly sized, parallel plates with a precisely known gap. The lower plate is driven laterally with a motor to apply shear to the liquid in the gap. The upper plate is freely suspended from a double-arm pendulum with a sufficiently long radius to reduce height variations during the swing to negligible levels. A sensitive load cell measures the shear force applied by the liquid to the upper plate. Viscosity is measured by taking the ratio of shear stress to shear rate.
  • Audience: scientists, materials scientists
  • Date Published: 2010-09-01
  • Is publication family-friendly: true
  • Publication Type: Academic Paper
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