Application of a multiple-beam laser Doppler velocimeter to measure velocity distributions of a fluidized bed

1981 ◽  
Author(s):  
E. J. Johnson ◽  
M. E. McDonnell
Keyword(s):  
Fluidized Bed ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Multiple Beam ◽  
Beam Laser

Triple-Beam Laser Doppler Velocimeter Based on Janus Configuration

2013 ◽  
Vol 50 (7) ◽  
pp. 071404
Author(s):  
邬战军 Wu Zhanjun ◽  
韩凤山 Han Fengshan ◽  
范哲 Fan Zhe ◽  
林志立 Lin Zhili
Keyword(s):  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Beam Laser

Demultiplexing multiple-beam laser Doppler vibrometry for continuous scanning

2009 ◽  
Author(s):  
Richard Burgett ◽  
Vyacheslav Aranchuk ◽  
James Sabatier ◽  
Steven S. Bishop
Keyword(s):  
Laser Doppler ◽  
Laser Doppler Vibrometry ◽  
Multiple Beam ◽  
Beam Laser ◽  
Continuous Scanning

Error analysis of reference-beam laser Doppler velocimeter

2010 ◽  
Vol 22 (11) ◽  
pp. 2581-2587 ◽  
Author(s):  
周健 Zhou Jian ◽  
冯庆奇 Feng Qingqi ◽  
马曙光 Ma Shuguang ◽  
宋锐 Song Rui ◽  
魏国 Wei Guo ◽  
...  
Keyword(s):  
Error Analysis ◽  
Reference Beam ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Beam Laser

A Bessel beam laser Doppler velocimeter

2009 ◽  
Vol 282 (9) ◽  
pp. 1874-1878 ◽  
Author(s):  
Andreas Voigt ◽  
Sascha Heitkam ◽  
Lars Büttner ◽  
Jürgen Czarske
Keyword(s):  
Bessel Beam ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Beam Laser

A Comparison of Four Velocity Bias Correction Techniques in Laser Doppler Velocimetry

1993 ◽  
Vol 115 (3) ◽  
pp. 508-514 ◽  
Author(s):  
R. D. Gould ◽  
K. W. Loseke
Keyword(s):  
Bias Correction ◽  
Ad Hoc ◽  
Sampling Technique ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Beam Laser ◽  
Empirical Correction ◽  
Dual Beam ◽  
Data Rates ◽  
Velocity Bias

Data from a two-component dual-beam laser-Doppler Velocimeter were used to evaluate four different velocity bias correction methods. The data were collected over a range of valid data rates from 100 Hz to 20 kHz at four flow locations in a shear layer. Turbulence intensities ranged from 15 to 100 percent. Flow statistics were calculated using these proposed velocity bias correction techniques. The results were compared to the unbiased values, which were obtained using an approximated equal-time sampling technique. Some of the correction schemes performed well at low turbulence levels, but became ineffective at high turbulence levels. One ad hoc empirical correction scheme showed relatively good results throughout.

Fast acoustic landmine detection using multiple beam laser Doppler vibrometry

2008 ◽  
Vol 123 (5) ◽  
pp. 3043-3043
Author(s):  
Vyacheslav Aranchuk ◽  
James M. Sabatier ◽  
Richard D. Burgett
Keyword(s):  
Landmine Detection ◽  
Laser Doppler ◽  
Laser Doppler Vibrometry ◽  
Multiple Beam ◽  
Beam Laser
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