Micro-Machined Flow Sensors Mimicking Lateral Line Canal Neuromasts
| Autor: | Siegfried Steltenkamp, Adrian Klein, Simon Tätzner, Elisabeth Schulze, Hendrik Herzog, Horst Bleckmann |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Microelectromechanical systems
Engineering business.industry Bar (music) Mechanical Engineering Acoustics Lateral line lcsh:Mechanical engineering and machinery finite element modeling Line (electrical engineering) Volumetric flow rate flow sensing MEMS Flow (mathematics) Flow velocity Control and Systems Engineering Fluid dynamics Geotechnical engineering lcsh:TJ1-1570 Electrical and Electronic Engineering business lateral line canal artificial lateral line mechanosensor |
| Zdroj: | Micromachines, Vol 6, Iss 8, Pp 1189-1212 (2015) Micromachines Volume 6 Issue 8 Pages 1189-1212 |
| Popis: | Fish sense water motions with their lateral line. The lateral line is a sensory system that contains up to several thousand mechanoreceptors, called neuromasts. Neuromasts occur freestanding on the skin and in subepidermal canals. We developed arrays of flow sensors based on lateral line canal neuromasts using a biomimetic approach. Each flow sensor was equipped with a PDMS (polydimethylsiloxane) lamella integrated into a canal system by means of thick- and thin-film technology. Our artificial lateral line system can estimate bulk flow velocity from the spatio-temporal propagation of flow fluctuations. Based on the modular sensor design, we were able to detect flow rates in an industrial application of tap water flow metering. Our sensory system withstood water pressures of up to six bar. We used finite element modeling to study the fluid flow inside the canal system and how this flow depends on canal dimensions. In a second set of experiments, we separated the flow sensors from the main stream by means of a flexible membrane. Nevertheless, these biomimetic neuromasts were still able to sense flow fluctuations. Fluid separation is a prerequisite for flow measurements in medical and pharmaceutical applications. |
| Databáze: | OpenAIRE |
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