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Content Provider | IEEE Xplore Digital Library |
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Author | Il Lee Jungchul Lee |
Copyright Year | 2012 |
Description | Author affiliation: Department of Mechanical Engineering, Sogang University, Seoul, South Korea (Il Lee; Jungchul Lee) |
Abstract | In this paper, we report precision viscosity measurements using suspended microchannel resonators (SMRs). Two different methods are developed and applied to glycerol-water binary mixtures having various weight ratios. First, open loop frequency sweep and harmonic oscillator fitting is employed to extract the quality factor (Q-factor) of an SMR. Second, closed loop feedback operation is employed while the vibration amplitude is continuously monitored. Both the Q-factor and vibration amplitude increase with increasing viscosity for the tested SMR and they agree well after rescaling. Viscosity measurements using the Q-factor change are compared with measurements using a bench-top tuning fork viscometer. While the bench-top tuning fork viscometer measures static viscosity thus always requires density correction, the SMR Q-factor measurement provides dynamic viscosity directly. In addition, SMR measurements require sample volume of ∼50 μL while the bench-top viscometer requires ∼10 mL per each measurement. |
Starting Page | 1 |
Ending Page | 4 |
File Size | 1671877 |
Page Count | 4 |
File Format | |
ISBN | 9781457717666 |
ISSN | 19300395 |
e-ISBN | 9781457717673 |
e-ISBN | 9781457717659 |
DOI | 10.1109/ICSENS.2012.6411424 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2012-10-28 |
Publisher Place | Taiwan |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Viscosity Q factor Vibrations Vibration measurement Resonant frequency Frequency measurement Density measurement Quality factor Suspended microchannel resonator |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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