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A Novel Bioinspired PVDF Micro/Nano Hair Receptor for a Robot Sensing System
The State Key Lab of Fluid Power Transmission and Control, Zhejiang University, Zhejiang Province, Hangzhou, 310027, China
CRIM Lab, Polo Sant'Anna Valdera,Viale Rinaldo Piaggio 34, 56025, Pontedera (Pisa), Italy
* Author to whom correspondence should be addressed.
Received: 1 December 2009; in revised form: 15 December 2009 / Accepted: 11 January 2010 / Published: 26 January 2010
Abstract: This paper describes the concept and design of a novel artificial hair receptor for the sensing system of micro intelligent robots such as a cricket-like jumping mini robot. The concept is inspired from the natural hair receptor of animals, also called cilium or filiform hair by different research groups, which is usually used as a vibration receptor or a flow detector by insects, mammals and fishes. The suspended fiber model is firstly built and the influence of scaling down is analyzed theoretically. The design of this artificial hair receptor is based on aligned suspended PVDF (polyvinylidene fluoride) fibers, manufactures with a novel method called thermo-direct drawing technique, and aligned suspended submicron diameter fibers are thus successfully fabricated on a flexible Kapton. In the post process step, some key problems such as separated electrodes deposition along with the fiber drawing direction and poling of micro/nano fibers to impart them with good piezoeffective activity have been presented. The preliminary validation experiments show that the artificial hair receptor has a reliable response with good sensibility to external pressure variation and, medium flow as well as its prospects in the application on sensing system of mini/micro bio-robots.
Keywords: artificial hair receptor; micro/nano fiber fabrication; aligned PVDF micro/nano fiber; thermo-direct drawing
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MDPI and ACS Style
Li, F.; Liu, W.; Stefanini, C.; Fu, X.; Dario, P. A Novel Bioinspired PVDF Micro/Nano Hair Receptor for a Robot Sensing System. Sensors 2010, 10, 994-1011.
Li F, Liu W, Stefanini C, Fu X, Dario P. A Novel Bioinspired PVDF Micro/Nano Hair Receptor for a Robot Sensing System. Sensors. 2010; 10(1):994-1011.
Li, Fei; Liu, Weiting; Stefanini, Cesare; Fu, Xin; Dario, Paolo. 2010. "A Novel Bioinspired PVDF Micro/Nano Hair Receptor for a Robot Sensing System." Sensors 10, no. 1: 994-1011.