Laser Doppler visualisation of the fields of three-dimensional velocity vectors with the help of a minimal number of CCD cameras

被引：3
|
作者：
Dubnishchev, Yu N. [1 ]
机构：
[1] Russian Acad Sci, Inst Thermophys, Siberian Branch, Novosibirsk 630090, Russia
来源：
QUANTUM ELECTRONICS | 2010年 / 40卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
laser Doppler visualisation of the velocity field; Doppler global velocimetry; planar Doppler velocimetry; laser Doppler spectroscopy; VELOCIMETRY;
D O I：
10.1070/QE2010v040n06ABEH014296
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We discuss the possibility of laser Doppler visualisation and measurement of the field of three-dimensional velocity vectors by suppressing the multiparticle scattering influence on the measurement results, when using one CCD camera. The coordinate measuring basis is formed due to switching of the directions and the frequency of spatially combined laser sheets, the frequency being synchronised with the CCD-camera operation. The field of the velocity vectors without the contribution from the multiparticle scattering is produced from the linear combinations of normalised laser sheet images detected with a CCD camera in a frequency-demodulated scattered light. The method can find applications not only in laser diagnostics of gas and condensed media but also in the Doppler spectroscopy of light fields scattered by multiparticle dynamic structures.
引用
收藏
页码：551 / 555
页数：5
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