3D Profile Variety Measurement of Pectoral Fin in Fish Fast Start

Ming Jiang; Shu Zhang; Xiao Yuan He

doi:10.4028/www.scientific.net/AMM.83.280

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3D Profile Variety Measurement of Pectoral Fin in Fish Fast Start
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 833D Profile Variety Measurement of Pectoral Fin in...

3D Profile Variety Measurement of Pectoral Fin in Fish Fast Start

Abstract:

Fast-starts are brief, sudden accelerations used by fish during predator-prey encounters. In this paper, a three-dimensional (3D) test and analysis method is critical to understand the function of the pectoral fin during maneuvers. An experiment method based on Fourier Transform Profilometry for 3D pectoral fin profile variety during fish maneuvers is proposed. This method was used in a carp fast-start during prey. Projecting the moiré fringes onto a carp pectoral fin it will produce the deformed fringe patterns contain 3D information. A high speed camera captures these time-sequence images. By Fourier transform, filter, inverse Fourier transform and unwrap these phase maps in 3D phase space, the complex pectoral fin profile variety were really reconstructed. The present study provides a new method to quantify the analysis of kinetic characteristic of the pectoral fin during maneuvers.

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Periodical:

Applied Mechanics and Materials (Volume 83)

Pages:

280-284

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.83.280

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Online since:

July 2011

Authors:

Ming Jiang, Shu Zhang, Xiao Yuan He

Keywords:

3D Profile, Carp, Fast Start, Fourier Transform Profilometry, Moiré Fringe, Pectoral Fin

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