hydrodynamic perception
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2020 ◽  
Vol 17 (5) ◽  
pp. 909-919
Author(s):  
Zhiqiang Ma ◽  
Yonggang Jiang ◽  
Zihao Dong ◽  
Zhiwu Han ◽  
Deyuan Zhang

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5384 ◽  
Author(s):  
Xiaohe Hu ◽  
Yonggang Jiang ◽  
Zhiqiang Ma ◽  
Yuanhang Xu ◽  
Deyuan Zhang

Fish and some amphibians can perform a variety of behaviors in confined and harsh environments by employing an extraordinary mechanosensory organ, the lateral line system (LLS). Inspired by the form-function of the LLS, a hydrodynamic artificial velocity sensor (HAVS) was presented in this paper. The sensors featured a polarized poly (vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)]/barium titanate (BTO) electrospinning nanofiber mat as the sensing layer, a polyimide (PI) film with arrays of circular cavities as the substrate, and a poly(methyl methacrylate) (PMMA) pillar as the cilium. The P(VDF-TrFE)/BTO electrospinning nanofiber mat demonstrated enhanced crystallinity and piezoelectricity compared with the pure P(VDF-TrFE) nanofiber mat. A dipole source was employed to characterize the sensing performance of the fabricated HAVS. The HAVS achieved a velocity detection limit of 0.23 mm/s, superior to the conventional nanofiber mat-based flow sensor. In addition, directivity was feasible for the HAVS, which was in accordance with the simulation results. The proposed bio-inspired flexible lateral line sensor with hydrodynamic perception ability shows promising applications in underwater robotics for real-time flow analysis.


2014 ◽  
pp. 147-167 ◽  
Author(s):  
Guido Dehnhardt ◽  
Wolf Hanke ◽  
Sven Wieskotten ◽  
Yvonne Krüger ◽  
Lars Miersch

2012 ◽  
Vol 199 (6) ◽  
pp. 421-440 ◽  
Author(s):  
Wolf Hanke ◽  
Sven Wieskotten ◽  
Christopher Marshall ◽  
Guido Dehnhardt

Author(s):  
Wolf Hanke ◽  
Sven Wieskotten ◽  
Benedikt Niesterok ◽  
Lars Miersch ◽  
Matthias Witte ◽  
...  

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