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An Underwater Flow Sensor Inspired by Air-Retaining Hairs of Notonecta

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a novel design mechanism of underwater flow sensor inspired by mechanosensitive air-retaining hairs of a backswimmer (Notonecta). The flow sensor, consists of a PDMS cantilever beam, a piezoresistor with single wall carbon nanotubes (SWCNTs) and Ag nanoparticles (AgNPs) nanocomposite on the cantilever, and a superaerophilic substrate. The SWCNTs/AgNPs nanocomposite was fabricated by a direct printing process, and a gauge factor of 150 was achieved. The air-retaining structure was created by the superaerophilic surface of the substrate and the PDMS sensing cantilever. The experimental results indicated that the sensitivity of the flow sensor with air layer was about 2.4 × higher than that of the sensor without air layer.

Original languageEnglish
Title of host publication21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1178-1181
Number of pages4
ISBN (Electronic)9781665412674
DOIs
StatePublished - 20 Jun 2021
Event21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021 - Virtual, Online, United States
Duration: 20 Jun 202125 Jun 2021

Publication series

Name21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021

Conference

Conference21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
Country/TerritoryUnited States
CityVirtual, Online
Period20/06/2125/06/21

Keywords

  • Air layer
  • Air-retaining
  • Backswimmer
  • Flow sensor
  • Nanocomposite

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