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Development of electrorheological chip and conducting
polymer-based sensor |
| Xianzhou ZHANG,Weihua LI,Weijia WEN,Yanzhe WU,Gordon WALLACE, |
| School of Mechanical,
Materials & Mechatronic Engineering, University of Wollongong,
Wollongong, NSW 2522, Australia; |
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Abstract This paper presents the development of an integrated sensor using two types of smart materials: electrorheological (ER) fluids and conducting polymers (CPs). The developed ER chip worked as an actuator, and it was driven by different voltages and control frequencies. When the four electrodes are controlled synchronously, the diaphragm acts as a vibrator whose frequency can be adjusted in accordance with the frequency of the electrical signals. The response signals of the CP sensor were recorded, and its properties were analyzed. Experimental results show that the amplitude decreases monotonically when the frequency increases, owing to the time delay in the pressure buildup in the ER chip. However, the displacement fluctuation of the diaphragm below 20Hz can be detected clearly even if the value is very low. When the vibration frequency is larger than 20Hz, the CP sensor can hardly detect the displacement fluctuation. Thus, the upper limit frequency that the CP sensor can detect is about 20Hz. The practical applications of this microdevice are also discussed.
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| Keywords
electrorheological (ER) fluids
conducting polymer (CP)
polydimethylsioxane (PDMS)
driving frequency
amplitude
bubble counter
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Issue Date: 05 December 2009
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Laurell T, Petersson F, Nilsson A. Chip integrated strategies for acoustic separation andmanipulation of cells and particles. ChemicalSociety Reviews, 2007, 36(3): 492–506
doi: 10.1039/b601326k
|
|
Kim S H, Choi J H, Lee S K, Kim S H, Yang S M, Lee Y H, Seassal C, Regrency P, Viktorovitch P. Optofluidicintegration of a photonic crystal nanolaser. Optics Express, 2008, 16(9): 6515–6527
doi: 10.1364/OE.16.006515
|
|
Liu L Y, Chen X Q, Niu X Z, Wen W J, Sheng P. Electrorheological fluid-actuated microfluidicpump. Applied Physics Letters, 2006, 89(8): 083505-1-083505-3
|
|
Gong X Q, Peng S L, Wen W J, Sheng P, Li W H. Design and fabrication of magneticallyfunctionalized core/shell microspheres for smart drug delivery. Advanced Functional Materials, 2009, 19: 292–297
doi: 10.1002/adfm.200801315
|
|
Liu L Y, Niu X Z, Wen W J, Sheng P. Electrorheologicalfluid-actuated flexible platform. AppliedPhysics Letters, 2006, 88(17): 173505-1-173505-3
|
|
Madden J D, Cush R A, Kanigan T S, Hunter I W. Fast contracting polypyrrole actuators. Synthetic Metals, 2000, 113(1―2): 185–192
doi: 10.1016/S0379-6779(00)00195-8
|
|
Pytel R Z, Thomas E L, Hunter I W. In situ observation of dynamic elastic modulus in polypyrroleactuators. Polymer, 2008, 49(8): 2008–2013
doi: 10.1016/j.polymer.2008.01.053
|
|
Li M, Yuan J Y, Shi G Q. Electrochemical fabrication of nanoporous polypyrrolethin films. Thin Solid Films, 2008, 516(12): 3836–3840
doi: 10.1016/j.tsf.2007.06.175
|
|
Wu Y Z, Alici G, Madden J D W, Spinks G M, Wallace G G. Soft mechanical sensors throughreverse actuation in polypyrrole. AdvancedFunctional Materials, 2007, 17(16): 3216–3222
doi: 10.1002/adfm.200700060
|
|
Alici G, Spinks G M, Madden J D, Wu Y Z, Wallace G G. Response characterizationof electroactive polymers as mechanical sensors. IEEE-ASME Transactions on Mechatronics, 2008, 13(2): 187–196
doi: 10.1109/TMECH.2008.918531
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