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Sensors 2017, 17(6), 1220; doi:10.3390/s17061220

Development of a Flexible Artificial Lateral Line Canal System for Hydrodynamic Pressure Detection

1
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China
2
International Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, China
*
Author to whom correspondence should be addressed.
Academic Editor: Stefano Mariani
Received: 16 February 2017 / Revised: 10 May 2017 / Accepted: 24 May 2017 / Published: 26 May 2017
(This article belongs to the Special Issue Piezoelectric Micro- and Nano-Devices)
View Full-Text   |   Download PDF [4693 KB, uploaded 26 May 2017]   |  

Abstract

Surface mounted ‘smart skin’ can enhance the situational and environmental awareness of marine vehicles, which requires flexible, reliable, and light-weight hydrodynamic pressure sensors. Inspired by the lateral line canal system in fish, we developed an artificial lateral line (ALL) canal system by integrating cantilevered flow-sensing elements in a polydimethylsiloxane (PDMS) canal. Polypropylene and polyvinylidene fluoride (PVDF) layers were laminated together to form the cantilevered flow-sensing elements. Both the ALL canal system and its superficial counterpart were characterized using a dipole vibration source. Experimental results showed that the peak frequencies of both the canal and superficial sensors were approximately 110 Hz, which was estimated to be the resonance frequency of the cantilevered flow-sensing element. The proposed ALL canal system demonstrated high-pass filtering capabilities to attenuate low-frequency stimulus and a pressure gradient detection limit of approximately 11 Pa/m at a frequency of 115 ± 1 Hz. Because of its structural flexibility and noise immunity, the proposed ALL canal system shows significant potential for underwater robotics applications. View Full-Text
Keywords: lateral line; flexible sensor; pressure sensor; biomimetic; piezoelectric lateral line; flexible sensor; pressure sensor; biomimetic; piezoelectric
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jiang, Y.; Ma, Z.; Fu, J.; Zhang, D. Development of a Flexible Artificial Lateral Line Canal System for Hydrodynamic Pressure Detection. Sensors 2017, 17, 1220.

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