The Design and Analysis of a Micro Squeeze Flow Rheometer

摘要: This thesis describes the analysis and design of a micro squeeze flow rheometer. The need to analyse rheology complex liquids occurs regularly in industry during research. However, frequently amount fluid available is too small, precluding use conventional rheometers. Conventional rheometers also tend have disadvantage being massive, preventing them from operating effectively at high frequencies. investigation carried out this has revealed that current microrheometry techniques their own disadvantages. proposed stand-alone device capable measuring dynamic properties nanolitre volumes viscoelastic frequencies up kHz range, an order magnitude greater than uses single piezoelectric component both actuate sense its position. Thorough analytical microrheometer been out. capillary effects, including contact angle hysteresis, viscoelasticity associated with liquid combined dynamics electrical response rheometer itself form complete consistent model. validity model proven through fabrication testing