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A biomimetic 3D airflow sensor made of an array of two piezoelectric metal-core fibers

A biomimetic 3D airflow sensor made of an array of two piezoelectric metal-core fibers PurposeThe purpose of this paper is to design and fabricate a three-dimensional (3D) bionic airflow sensing array made of two multi-electrode piezoelectric metal-core fibers (MPMFs), inspired by the structure of a cricket’s highly sensitive airflow receptor (consisting of two cerci).Design/methodology/approachA metal core was positioned at the center of an MPMF and surrounded by a hollow piezoceramic cylinder. Four thin metal films were spray-coated symmetrically on the surface of the fiber that could be used as two pairs of sensor electrodes.FindingsIn 3D space, four output signals of the two MPMFs arrays can form three “8”-shaped spheres. Similarly, the sensing signals for the same airflow are located on a spherical surface.Originality/valueTwo MPMF arrays are sufficient to detect the speed and direction of airflow in all three dimensions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Sensor Review Emerald Publishing

A biomimetic 3D airflow sensor made of an array of two piezoelectric metal-core fibers

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0260-2288
DOI
10.1108/SR-12-2016-0278
Publisher site
See Article on Publisher Site

Abstract

PurposeThe purpose of this paper is to design and fabricate a three-dimensional (3D) bionic airflow sensing array made of two multi-electrode piezoelectric metal-core fibers (MPMFs), inspired by the structure of a cricket’s highly sensitive airflow receptor (consisting of two cerci).Design/methodology/approachA metal core was positioned at the center of an MPMF and surrounded by a hollow piezoceramic cylinder. Four thin metal films were spray-coated symmetrically on the surface of the fiber that could be used as two pairs of sensor electrodes.FindingsIn 3D space, four output signals of the two MPMFs arrays can form three “8”-shaped spheres. Similarly, the sensing signals for the same airflow are located on a spherical surface.Originality/valueTwo MPMF arrays are sufficient to detect the speed and direction of airflow in all three dimensions.

Journal

Sensor ReviewEmerald Publishing

Published: Jun 19, 2017

References