Single camera three component planar velocity measurements using two-frequency planar Doppler velocimetry (2ν-PDV) (2012)

Date

2006-04-13T00:00:00Z

Supervisor/s

Journal Title

Journal ISSN

Volume Title

Publisher

Iop Publishing Ltd

Department

Type

Article

ISSN

0957-0233

Format

Free to read from

Citation

Charrett TOH, Tatam RP. (2012) Single camera three component planar velocity measurements using two-frequency planar Doppler velocimetry (2ν-PDV). Measurement Science and Technology, Volume 17, Number 5, pp. 1194–1206

Abstract

Two-frequency planar Doppler velocimetry (2ν-PDV) is used in conjunction with imaging fibre bundles to make time-averaged three component velocity measurements using a single CCD camera and iodine cell. In this scheme the flow is sequentially illuminated with two different frequencies of laser light, which are separated by approximately 700 MHz to 1 GHz. Images are captured for each illumination frequency on a CCD camera viewing through an iodine absorption filter. These images are then used to produce a normalized transmission image that can be processed as in normal PDV. Three component measurements are made possible by porting separate views to a single CCD camera using the imaging fibre bundles. Results are presented here for a 2ν-PDV system demonstrated making time-averaged velocity measurements on a rotating disc and a seeded air jet.

Description

Software Description

Software Language

Github

Keywords

Acousto-optic frequency switching, Coherent fibre bundles, Flow measurement, Planar Doppler velocimetry

DOI

Rights

'This is an author-created, un-copyedited version of an article accepted for publication in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/0957-0233/17/5/S43

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