Using Micromechanical Resonators to Measure Rheological Properties and Alcohol Content of Model Solutions and Commercial Beverages

Sensors

Rosemary Paxman¹  Jake Stinson¹  Anna Dejardin¹  Rachel A. McKendry¹ 

[1] London Centre for Nanotechnology, Departments of Physics, Chemistry, and Medicine, University College London, 17-19 Gordon Street, London WC1H 0AH, UK;

关键词: micromechancical sensors;    cantilevers;    rheological properties;    alcohol contents;    quality control;   

DOI  :  10.3390/s120506497

来源: mdpi

【 摘 要 】

Micromechanic resonators provide a small-volume and potentially high-throughput method to determine rheological properties of fluids. Here we explore the accuracy in measuring mass density and viscosity of ethanol-water and glycerol-water model solutions, using a simple and easily implemented model to deduce the hydrodynamic effects on resonating cantilevers of various length-to-width aspect ratios. We next show that these measurements can be extended to determine the alcohol percentage of both model solutions and commercial beverages such as beer, wine and liquor. This demonstrates how micromechanical resonators can be used for quality control of every-day drinks.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.