Speckle-based three-dimensional velocity measurement using spatial filtering velocimetry

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Speckle-based three-dimensional velocity measurement using spatial filtering velocimetry. / Iversen, Theis Faber Quist; Jakobsen, Michael Linde; Hanson, Steen Grüner.

In: Applied Optics, Vol. 50, No. 11, 2011, p. 1523-1533.

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Iversen, Theis Faber Quist; Jakobsen, Michael Linde; Hanson, Steen Grüner / Speckle-based three-dimensional velocity measurement using spatial filtering velocimetry.

In: Applied Optics, Vol. 50, No. 11, 2011, p. 1523-1533.

Publication: Research - peer-reviewJournal article – Annual report year: 2011

Bibtex

@article{d20a27e632e94780a1aa37902e42f466,
title = "Speckle-based three-dimensional velocity measurement using spatial filtering velocimetry",
publisher = "Optical Society of America",
author = "Iversen, {Theis Faber Quist} and Jakobsen, {Michael Linde} and Hanson, {Steen Grüner}",
note = "This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-11-1523. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.",
year = "2011",
doi = "10.1364/AO.50.001523",
volume = "50",
number = "11",
pages = "1523--1533",
journal = "Applied Optics",
issn = "1559-128X",

}

RIS

TY - JOUR

T1 - Speckle-based three-dimensional velocity measurement using spatial filtering velocimetry

A1 - Iversen,Theis Faber Quist

A1 - Jakobsen,Michael Linde

A1 - Hanson,Steen Grüner

AU - Iversen,Theis Faber Quist

AU - Jakobsen,Michael Linde

AU - Hanson,Steen Grüner

PB - Optical Society of America

PY - 2011

Y1 - 2011

N2 - We present an optical method for measuring the real-time three-dimensional (3D) translational velocity of a diffusely scattering rigid object observed through an imaging system. The method is based on a combination of the motion of random speckle patterns and regular fringe patterns. The speckle pattern is formed in the observation plane of the imaging system due to reflection from an area of the object illuminated by a coherent light source. The speckle pattern translates in response to in-plane translation of the object, and the presence of an angular offset reference wave coinciding with the speckle pattern in the observation plane gives rise to interference, resulting in a fringe pattern that translates in response to the out-of-plane translation of the object. Numerical calculations are performed to evaluate the dynamic properties of the intensity distribution and the response of realistic spatial filters designed to measure the three components of the object’s translational velocity. Furthermore, experimental data are presented that demonstrate full 3D velocity measurement.

AB - We present an optical method for measuring the real-time three-dimensional (3D) translational velocity of a diffusely scattering rigid object observed through an imaging system. The method is based on a combination of the motion of random speckle patterns and regular fringe patterns. The speckle pattern is formed in the observation plane of the imaging system due to reflection from an area of the object illuminated by a coherent light source. The speckle pattern translates in response to in-plane translation of the object, and the presence of an angular offset reference wave coinciding with the speckle pattern in the observation plane gives rise to interference, resulting in a fringe pattern that translates in response to the out-of-plane translation of the object. Numerical calculations are performed to evaluate the dynamic properties of the intensity distribution and the response of realistic spatial filters designed to measure the three components of the object’s translational velocity. Furthermore, experimental data are presented that demonstrate full 3D velocity measurement.

UR - http://www.opticsinfobase.org.globalproxy.cvt.dk/ao/abstract.cfm?URI=ao-50-11-1523

U2 - 10.1364/AO.50.001523

DO - 10.1364/AO.50.001523

JO - Applied Optics

JF - Applied Optics

SN - 1559-128X

IS - 11

VL - 50

SP - 1523

EP - 1533

ER -