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|Document Type: ||Article|
|Title: ||Single camera three component planar velocity measurements using two-frequency planar Doppler velocimetry (2ν-PDV)|
|Authors: ||Charrett, Thomas O. H.|
Tatam, Ralph P.
|Issue Date: ||2006|
|Citation: ||T.O.H. Charrett and R.P. Tatam, Single camera three component planar velocity measurements using two-frequency planar Doppler velocimetry (2ν-PDV), Measurement Science and Technology, Volume 17, Number 5, Pages 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.|
|Appears in Collections:||Staff publications - School of Engineering|
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