21 March 2006 Structural analysis of piezoelectric cantilever transducer for in-situ characteristic measurement of polymer gel
Author Affiliations +
Proceedings Volume 6040, ICMIT 2005: Mechatronics, MEMS, and Smart Materials; 60402N (2006) https://doi.org/10.1117/12.664273
Event: ICMIT 2005: Merchatronics, MEMS, and Smart Materials, 2005, Chongqing, China
Abstract
Our previous study has proved that piezo-cantilever coated with temperature-responsive polymer gel can measure swelling ratio of the polymer in solution by piezo-impedance measuring technology. However, the sensitivity and accuracy of the piezo-cantilever transducer is related to the vibration modes actuated by the piezoelectric cell. The bending mode seems not available to work in solution as its amplitude is attenuated greatly and causes noise easily in solution. In this study, the longitudinal mode of piezo-cantilever transducer has been studied to detect physical changing due to the temperature-sensitive polymer gel. The impedance responses to variation of physical properties such as length, thickness and density of the polymer gel have been investigated. The results show that for a certain longitudinal mode, variation of length of the polymer can be neglected. The swelling ratio of the piezo-cantilever transducer is obtained theoretically. Finally. A new type of piezo-cantilever transducer is proposed that is more convenient in practice.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fenlan Li, Fenlan Li, Zhongwei Jiang, Zhongwei Jiang, } "Structural analysis of piezoelectric cantilever transducer for in-situ characteristic measurement of polymer gel", Proc. SPIE 6040, ICMIT 2005: Mechatronics, MEMS, and Smart Materials, 60402N (21 March 2006); doi: 10.1117/12.664273; https://doi.org/10.1117/12.664273
PROCEEDINGS
6 PAGES


SHARE
Back to Top