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http://dx.doi.org/10.5369/JSST.2008.17.4.289

Development of viscosity sensor using surface acoustic wave  

Chong, Woo-Suk (Department of Biomedical Engineering, Graduate School.Center for Healthcare Technology Development.Research Institute of Clinical Medicine, Chonbuk National University)
Kim, Gi-Beum (Department of Pharmacology, College of Veterinary Medicine.Research Institute of Clinical Medicine.2nd stage Brain Korea 21.Center for Healthcare Technology Development, Chonbuk National University)
Kang, Hyung-Sub (Department of Pharmacology, College of Veterinary Medicine.2nd stage Brain Korea 21.Center for Healthcare Technology Development, Chonbuk National University)
Hong, Chul-Un (Division of Biomedical Engineering, College of Engineering.Center for Healthcare Technology Development, Chonbuk National University)
Publication Information
Journal of Sensor Science and Technology / v.17, no.4, 2008 , pp. 289-294 More about this Journal
Abstract
The purpose of this study is to materialize the viscosity sensor by using the SH-SAW sensor of which the center frequency is operated at higher than 50 MHz. In order to measure the viscosity, SAW sensor of which the center frequency is operated at 100 MHz is developed. By using the developed sensor, phase shift, delay time, insertion loss, and frequency variation are measured at different viscosity. The result shows that the phase shift difference between the viscosity variations is such that the difference between the distilled water and the 100 % glycerol solution is approximately $45^{\circ}$, the change of the insertion loss is approximately 9 dB, and the difference of frequency variation is approximately 5.9 MHz. Therefore, it is shown that viscosity of unknown solution can be measured with the surface acoustic wave sensor.
Keywords
Surface acoustic wave (SAW); Viscosity sensor; Non-Newtonian fluid; Phase shift; Delay time;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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