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Journal articles on the topic 'Laser Doppler Velocimetry'

Author: Grafiati

Published: 4 June 2021

Last updated: 21 February 2023

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1

Lancaster, J. F., M. Lucarotti, and D. J. Leaper. "Laser Doppler Velocimetry." Journal of the Royal Society of Medicine 80, no. 12 (December 1987): 729–30. http://dx.doi.org/10.1177/014107688708001203.

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2

Wang, C. P. "Laser Doppler velocimetry." Journal of Quantitative Spectroscopy and Radiative Transfer 40, no. 3 (September 1988): 309–19. http://dx.doi.org/10.1016/0022-4073(88)90122-7.

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3

Meier, Alexander H., and Thomas Roesgen. "Imaging laser Doppler velocimetry." Experiments in Fluids 52, no. 4 (August 31, 2011): 1017–26. http://dx.doi.org/10.1007/s00348-011-1192-1.

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4

Ojo, Anthony O., Benoit Fond, Berend G. M. Van Wachem, Andrew L. Heyes, and Frank Beyrau. "Thermographic laser Doppler velocimetry." Optics Letters 40, no. 20 (October 13, 2015): 4759. http://dx.doi.org/10.1364/ol.40.004759.

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5

Gidon, S., and G. Behar. "Multiple-line laser Doppler velocimetry." Applied Optics 27, no. 11 (June 1, 1988): 2315. http://dx.doi.org/10.1364/ao.27.002315.

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6

Ilic, Jelena, Slavica Ristic, and Milesa Sreckovic. "Laser doppler velocimetry and confined flows." Thermal Science 21, suppl. 3 (2017): 825–36. http://dx.doi.org/10.2298/tsci160720278i.

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Finding the mode, in which two component laser Doppler velocimetry can be applied to flows confined in cylindrical tubes or vessels, was the aim of this study. We have identified principle issues that influence the propagation of laser beams in laser Doppler velocimetry system, applied to flow confined in cylindrical tube. Among them, the most important are influences of fluid and wall refractive indices, wall thickness and internal radius ratio and beam intersection angle. In analysis of the degrees of these influences, we have applied mathematical model, based on geometrical optics. The separation of measurement volumes, that measure different velocity components, has been recognized as the main drawback. To overcome this, we propose a lens with dual focal length ? primary focal length for the measurement of one velocity component and secondary focal length for the measurement of the other velocity component. We present here the procedure for calculating the optimal value of secondary focal length, depending on experimental set-up parameters. The mathematical simulation of the application of the dual focal length lens, for chosen cases presented here, confirmed the accuracy of the proposed procedure.

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7

O’Brien, Kory T., and Semih M. Ölçmen. "A borescopic laser Doppler velocimetry probe." Measurement Science and Technology 25, no. 7 (June 16, 2014): 075206. http://dx.doi.org/10.1088/0957-0233/25/7/075206.

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8

Mavros, P., I. Naude, C. Xuereb, and J. Bertrand. "Laser Doppler Velocimetry in Agitated Vessels." Chemical Engineering Research and Design 75, no. 8 (November 1997): 763–76. http://dx.doi.org/10.1205/026387697524434.

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9

Ahmed, Noor A. "Aspects of Design and Manufacture of a Three-Dimensional Fibre Optic Laser Doppler Probe Head." Applied Mechanics and Materials 397-400 (September 2013): 103–13. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.103.

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Laser Doppler Velocimetry is an important flow diagnostic methodology used in modern day fluid flow investigations. The present paper describes the design and manufacturing aspects of a novel fibre optic LASER Doppler probe head intended for three dimensional measurements in a complex flow field. The paper particularly concentrates on the tight tolerances required of the various components associated with the probe head to achieve the desired measurement volume. Keywords: Fibre Optic, Laser Doppler, Velocimetry, three-dimensional, complex flow field

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10

Rothberg, Steve, Alan Hocknell, and Jeremy Coupland. "Developments in laser Doppler accelerometry (LDAc) and comparison with laser Doppler velocimetry." Optics and Lasers in Engineering 32, no. 6 (December 1999): 549–64. http://dx.doi.org/10.1016/s0143-8166(00)00002-6.

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11

Rajadhyaksha, Milind M., and Warren H. Stevenson. "Dynamic Laser Doppler Velocimetry on Solid Surfaces." Journal of Laser Applications 4, no. 2 (July 1992): 33–42. http://dx.doi.org/10.2351/1.4745303.

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12

Kihm, K. D., Norman Chigier, and Frank Sun. "Laser Doppler velocimetry investigation of swirler flowfields." Journal of Propulsion and Power 6, no. 4 (July 1990): 364–74. http://dx.doi.org/10.2514/3.25445.

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13

Schmidt, J., F. Durst, R. Völkel, W. Stork, J. T. Sheridan, J. Schwider, and N. Streibl. "Diffractive beam splitter for laser Doppler velocimetry." Optics Letters 17, no. 17 (September 1, 1992): 1240. http://dx.doi.org/10.1364/ol.17.001240.

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14

Maru, Koichi, and Yusaku Fujii. "Laser Doppler Velocimetry Using Integrated Waveguide Technology." Applied Mechanics and Materials 36 (October 2010): 323–28. http://dx.doi.org/10.4028/www.scientific.net/amm.36.323.

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Integrated laser Doppler velocimeters (LDVs) using integrated waveguide technology are reviewed. LDVs have been widely used to measure the velocity of a fluid flow or rigid object in various research and industries. However, bulk optical systems used in conventional measurement need special care from temperature change and vibration, which become the expected sources of uncertainty in measurement, due to large optical path length. Therefore, the optical system should be more compact. The LDV can be drastically reduced by using a planar lightwave circuit (PLC). The possibility for realizing several types of novel integrated LDVs, including a wavelength-insensitive LDV, a scanning LDV and a multi-point LDV, is discussed.

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15

WAXMAN, KENNETH, PAULA FORMOSA, HANI SOLIMAN, GAIL TOMINAGA, ALICE POLICE, and JOHN HYATT. "Laser Doppler velocimetry in critically ill patients." Critical Care Medicine 15, no. 8 (August 1987): 780–83. http://dx.doi.org/10.1097/00003246-198708000-00015.

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16

Albert, J., M. C. Soriano, I. Veretennicoff, K. Panajotov, J. Danckaert, P. A. Porta, D. P. Curtin, and J. G. McInerney. "Laser Doppler Velocimetry With Polarization-Bistable VCSELs." IEEE Journal of Selected Topics in Quantum Electronics 10, no. 5 (September 2004): 1006–12. http://dx.doi.org/10.1109/jstqe.2004.836011.

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17

Milbocker, M. T. "Laser Doppler velocimetry stabilized in one dimension." IEEE Transactions on Biomedical Engineering 38, no. 9 (1991): 928–30. http://dx.doi.org/10.1109/10.83614.

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18

Fan, Zhe, Qiao Sun, Lei Du, and Jie Bai. "Janus-configured all fibre laser Doppler velocimetry." IET Optoelectronics 12, no. 1 (February 1, 2018): 50–54. http://dx.doi.org/10.1049/iet-opt.2017.0047.

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19

Jacobs, Diane A., Charles W. Jacobs, and C. David Andereck. "Biological scattering particles for laser Doppler velocimetry." Physics of Fluids 31, no. 12 (1988): 3457. http://dx.doi.org/10.1063/1.866913.

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20

Ancimer, R. J., and R. A. Fraser. "Flame-induced laser Doppler velocimetry velocity bias." Measurement Science and Technology 5, no. 2 (February 1, 1994): 83–92. http://dx.doi.org/10.1088/0957-0233/5/2/002.

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21

Nuttall, Alfred L., David F. Dolan, and G. Avinash. "Laser Doppler velocimetry of basilar membrane vibration." Hearing Research 51, no. 2 (February 1991): 203–13. http://dx.doi.org/10.1016/0378-5955(91)90037-a.

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22

Shepherd, A. P., and G. L. Riedel. "Laser-Doppler blood flowmetry of intestinal mucosal hyperemia induced by glucose and bile." American Journal of Physiology-Gastrointestinal and Liver Physiology 248, no. 4 (April 1, 1985): G393—G397. http://dx.doi.org/10.1152/ajpgi.1985.248.4.g393.

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To determine whether the functional hyperemia evoked by solute transport is confined to the intestinal mucosa or whether blood flow increases throughout the bowel wall, we measured blood flow in the mucosa and muscularis-serosa with laser-Doppler velocimetry. Ileal loops were vascularly isolated in pentobarbital sodium-anesthetized dogs. Total blood flow to the loop was measured electromagnetically, while blood flow in the superficial mucosa and muscularis-serosa was monitored by laser-Doppler velocimetry. Perfusion pressures and arteriovenous oxygen difference were also recorded continuously. When a mixture of 5% bile and glucose was placed in the lumen of the isolated loop, total blood flow and oxygen uptake increased 21 and 62%, respectively. During this hypermetabolic state, laser-Doppler measurements indicated blood flow in the muscularis-serosa fell by 10%, but blood flow in the mucosa increased 42%. These findings with laser-Doppler velocimetry confirm earlier studies in which the radioactive microsphere technique indicated that low-fat, low-protein test meals induce a postprandial hyperemia confined to the mucosal circulation. These findings also demonstrate a metabolic flow-controlling mechanism closely linked to the absorptive process.

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23

Fischer, Andreas, Thorsten Pfister, and Jürgen Czarske. "Derivation and comparison of fundamental uncertainty limits for laser-two-focus velocimetry, laser Doppler anemometry and Doppler global velocimetry." Measurement 43, no. 10 (December 2010): 1556–74. http://dx.doi.org/10.1016/j.measurement.2010.09.009.

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24

Meyers, J. F., and L. Scott Miller. "Assessing the Capability of Doppler Global Velocimetry to Measure Vortical Flow Fields." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 208, no. 2 (July 1994): 99–105. http://dx.doi.org/10.1243/pime_proc_1994_208_259_02.

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A new non-intrusive flow diagnostics instrumentation system, Doppler global velocimetry, is presented. The system is capable of making simultaneous three-component velocity measurements within a selected measurement plane at video camera rates. These velocity images can provide the researcher with spatial and temporal information about the flow field in a global sense. The investigation of a vortical flow above a 75° delta wing comparing standard three-component fringe-type laser velocimetry measurements with Doppler global velocimetry measurements is presented.

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25

Maru, Koichi, and Yusaku Fujii. "Laser Doppler Velocimetry with Small Wavelength Sensitivity Using Planar Lightwave Circuit." Applied Mechanics and Materials 103 (September 2011): 76–81. http://dx.doi.org/10.4028/www.scientific.net/amm.103.76.

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Using a semiconductor laser as a lightsource of a laser Doppler velocimeter (LDV) is desirable to reduce the size and the cost of velocity measurement equipment. However, typical inexpensive semiconductor lasers suffer from the problem of instability in lasing wavelength. In this paper, LDVs with small wavelength sensitivity are reviewed. The wavelength sensitivity can be reduced by using arrayed waveguide gratings (AWGs), Mach-Zehnder interferometers (MZIs) or cascaded MZIs. These structures can be formed by planar lightwave circuit (PLC) technology. The principles and the possibility for realizing wavelength-insensitive operation are discussed.

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26

Beuth, Thorsten, Maik Fox, and Wilhelm Stork. "Influence of laser coherence on reference-matched laser Doppler velocimetry." Applied Optics 55, no. 8 (March 10, 2016): 2104. http://dx.doi.org/10.1364/ao.55.002104.

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27

Ramasamy, Manikandan, and J. Gordon Leishman. "Benchmarking Particle Image Velocimetry with Laser Doppler Velocimetry for Rotor Wake Measurements." AIAA Journal 45, no. 11 (November 2007): 2622–33. http://dx.doi.org/10.2514/1.28130.

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28

Dunagan, Stephen E. "Schmidt‐Cassegrain Optics For Laser Doppler Velocimetry Applications." Journal of Laser Applications 3, no. 1 (January 1991): 27–35. http://dx.doi.org/10.2351/1.4745273.

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29

YOKOMISE, H., H. WADA, K. INUI, F. YAMAZAKI, M. LEE, M. AOKI, and S. HITOMI. "APPLICATION OF LASER DOPPLER VELOCIMETRY TO LUNG TRANSPLANTATION." Transplantation 48, no. 4 (October 1989): 550–53. http://dx.doi.org/10.1097/00007890-198910000-00002.

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30

Valenzuela, A. R., G. Rodriguez, S. A. Clarke, and K. A. Thomas. "Photonic Doppler velocimetry of laser-ablated ultrathin metals." Review of Scientific Instruments 78, no. 1 (January 2007): 013101. http://dx.doi.org/10.1063/1.2424434.

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31

Quercioli, Franco, Andrea Mannoni, and Bruno Tiribilli. "Laser Doppler velocimetry with a compact disc pickup." Applied Optics 37, no. 25 (September 1, 1998): 5932. http://dx.doi.org/10.1364/ao.37.005932.

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32

Booij, W. E., A. de Jongh, and F. F. M. de Mul. "Flow profile study using miniature laser‐Doppler velocimetry." American Journal of Physics 63, no. 11 (November 1995): 1028–33. http://dx.doi.org/10.1119/1.18051.

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33

Belmabrouk, H., and M. Michard. "Taylor length scale measurement by laser Doppler velocimetry." Experiments in Fluids 25, no. 1 (June 16, 1998): 69–76. http://dx.doi.org/10.1007/s003480050209.

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34

Zaron, Edward D. "Laser Doppler velocimetry using a modified computer mouse." American Journal of Physics 84, no. 10 (October 2016): 810–13. http://dx.doi.org/10.1119/1.4960466.

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35

Brown, Robert G. W., James G. Burnett, John Mansbridge, Christopher I. Moir, and Brian S. Lowans. "Miniature, solid state photon correlation laser Doppler velocimetry." Applied Optics 29, no. 22 (August 1, 1990): 3291. http://dx.doi.org/10.1364/ao.29.003291.

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36

Czarske, J., and O. Dölle. "Quadrature demodulation technique used in laser Doppler velocimetry." Electronics Letters 34, no. 6 (1998): 547. http://dx.doi.org/10.1049/el:19980389.

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37

LeDuff, A., G. Plantier, J. C. Valiere, and T. Bosch. "Analog Sensor Design Proposal for Laser Doppler Velocimetry." IEEE Sensors Journal 4, no. 2 (April 2004): 257–61. http://dx.doi.org/10.1109/jsen.2004.823669.

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38

Nino, E., and C. Serio. "Laser Doppler velocimetry analysis of transitional pipe flow." European Physical Journal B 14, no. 1 (February 2000): 191–200. http://dx.doi.org/10.1007/s100510050120.

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39

James, Stephen W., R. A. Lockey, David Egan, and Ralph P. Tatam. "Fibre optic based reference beam laser Doppler velocimetry." Optics Communications 119, no. 5-6 (September 1995): 460–64. http://dx.doi.org/10.1016/0030-4018(95)93234-8.

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40

Petrig, Benno L., Terri L. Young, Juan E. Grunwald, Graham E. Quinn, and Charles E. Riva. "Laser Doppler velocimetry in retinal arteries of infants." Lasers in Medical Science 10, no. 4 (December 1995): 267–72. http://dx.doi.org/10.1007/bf02133619.

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41

Song, Nian Long, Da Zhang, and Qi Li. "Laser Doppler Velocimetry Signal Processing Based on Spectral Refinement and Correction." Advanced Materials Research 383-390 (November 2011): 6319–23. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6319.

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In order to improve the accuracy of signal processing in Laser Doppler Velocimetry, a method based on the association of spectral refinement and correction is presented. Zoom-FFT and ratio correction are adopted to realize this method. Basic principles of zoom-FFT and ratio correction are expounded. FFT and the method are adopted to process sinusoidal signals and simulated laser Doppler signals with different frequencies separately in circumstance of MATLAB 7.0. Comparisons between the results of FFT and the method are carried out. The comparisons show that this method has the capability to improve the accuracy of laser Doppler signal processing significantly and the operation time is acceptable for LDV system.

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42

Rothberg, S. J., and N. A. Halliwell. "Vibration Measurements on Rotating Machinery Using Laser Doppler Velocimetry." Journal of Vibration and Acoustics 116, no. 3 (July 1, 1994): 326–31. http://dx.doi.org/10.1115/1.2930432.

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This paper explores the use of laser vibrometry for vibration measurement directly from a rotating component. The presence of a surface velocity component due to the rotation itself is shown to create a strong measurement dependency on vibration perpendicular to the intended measurement direction. Particular ambiguity results at synchronous frequencies. A mathematical means to resolve the genuine vibration components from two simultaneous laser vibrometer measurements is presented and shown to be effective in the study of nonsynchronous rotor vibrations.

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43

Meironke, Heiko, and Kai Böttcher. "Experimental Investigation of Parameters, Influencing Velocity Fields during Beer Fermentation." Key Engineering Materials 597 (December 2013): 37–44. http://dx.doi.org/10.4028/www.scientific.net/kem.597.37.

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In the course of the research aiming on the optimisation of beer fermentation, a large number of fermentations have been performed under various boundary conditions. We carried out different measurements, including temperature and velocity investigations. Due to turbidity, the latter cannot be performed easily by using common techniques like laser Doppler anemometry or particle image velocimetry. Therefore the ultrasound Doppler velocimetry got utilised. It permits measurements in opaque fluids and provides velocity fields for any time during the fermentation.

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44

Hocking, Edwards JE, and PI Hynd. "Cutaneous circulation is correlated with Merino wool production." Australian Journal of Agricultural Research 45, no. 4 (1994): 757. http://dx.doi.org/10.1071/ar9940757.

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Laser Doppler velocimetry was used to investigate the cutaneous circulation and its relationship to wool growth in Finewool and Strongwool Merinos. Skin blood flow measured with the laser Doppler velocimeter (LDV) was highly correlated with estimates of blood flow obtained using 57Co-labelled microspheres (R2 = 0.85; P < 0.01), although the absolute values estimated by the microsphere technique were significantly higher (P < 0.001). Strongwool Merinos had a greater rate of blood flowing through the skin than Finewool Merinos, and this was associated with both wool production per unit area of skin (R2 = 0.27, P < 0.01) and with the total volume of germinative tissue in the skin (R2 = 0.54; P < 0.04). The relationship between the microvascular anatomy of the skin and blood flow was also examined in four Finewool Merinos and four Strongwool Merinos. Silicone rubber was infused into the deep circumflex iliac artery within the abdominal flank, from which an index of the area of vascular tissue per unit volume of skin was estimated. This index was not related to blood flow, wool growth or follicle density within nor between strains of Merinos. Both the usefulness and limitations of the LDV are discussed, and it was concluded that (a) blood flow has an important role in the level of wool produced both within and between strains of Merinos, and (b) laser Doppler velocimetry is a useful tool for the study of blood flow in the skin of sheep.

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45

Parshin, V. A., V. V. Bliznyuk, and A. V. Dolgov. "Polarization stability of the single-mode laser diodes radiation applied in radiation scattering study complexes." Journal of Physics: Conference Series 2127, no. 1 (November 1, 2021): 012040. http://dx.doi.org/10.1088/1742-6596/2127/1/012040.

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Abstract Key features of semiconductor lasers and its serially manufacturing technology modernization have greatly expanded of its using at applied studies at last 20 years. But there is set of factors restricting such lasers application in a number of optical-electronic measuring complexes. Particularly in particle image velocimetry (PIV) and laser Doppler velocimetry (LDV) complexes commonly the gas and solid-state lasers is used due to more stability of spectral, energy and polarization characteristics of radiation then semiconductor lasers have. However gradual introduction of the serially manufacturing laser diodes into such systems picking up the pace that certainly characterizes the progress of reaching the required stability of its output laser radiation parameters. In laser measurement systems where medium investigation carried out by analyzing of scattering radiation in it the probe radiation polarization is often important. So the using in such systems the laser diodes as sources of radiation need to be followed by stability monitoring of its polarization characteristics which may be violated both by the outer factors and by natural degradation of inner laser diode structure. This work is devoted to the issues of monitoring the radiation polarization characteristics of the serially manufacturing single-mode laser diodes.

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46

Hobson, G. V., A. J. H. Williams, and H. J. Ganaim Rickel. "Laser-Doppler-Velocimetry Measurements in a Cascade of Compressor Blades at Stall." Journal of Turbomachinery 120, no. 1 (January 1, 1998): 170–78. http://dx.doi.org/10.1115/1.2841378.

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Compressor stall was simulated in the Low-Speed Cascade Wind Tunnel at the Turbopropulsion Laboratory of the Naval Postgraduate School. The test blades were of controlled-diffusion design with a solidity of 1.67, and stalling occurred at 10 deg of incidence above the design inlet air angle. All measurements were taken at a flow Reynolds number, based on chord length, of 700,000. Laser-sheet flow visualization techniques showed that the stalling process was unsteady and occurred over the whole cascade. Detailed laser-Doppler-velocimetry measurements over the suction side of the blades showed regions of continuous and intermittent reverse flow. The measurements of the continuous reverse flow region at the leading edge were the first data of their kind in the leading edge separation bubble. The regions of intermittent reverse flow, measured with laser-Doppler velocimeter, corresponded to the flow visualization studies. Blade surface pressure measurements showed a decrease in normal force on the blade, as would be expected at stall. Data are presented in a form that characterizes the unsteady positive and negative velocities about their mean, for both the continuous reverse flow regions and the intermittent reverse flow regions.

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47

Otsuka, Kenju. "Ultrahigh sensitivity laser Doppler velocimetry with a microchip solid-state laser." Applied Optics 33, no. 6 (February 20, 1994): 1111. http://dx.doi.org/10.1364/ao.33.001111.

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48

Mychkovsky, Alexander G., Natasha A. Chang, and Steven L. Ceccio. "Bragg cell laser intensity modulation: effect on laser Doppler velocimetry measurements." Applied Optics 48, no. 18 (June 12, 2009): 3468. http://dx.doi.org/10.1364/ao.48.003468.

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49

Kato, Satoru, Manabu Kagami, Ta-i. Ichikawa, Kazuo Hasegawa, and Hiroshi Ito. "Optical fibre laser Doppler velocimetry based on laser diode frequency modulation." Optics & Laser Technology 27, no. 4 (August 1995): xii. http://dx.doi.org/10.1016/0030-3992(95)93737-c.

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50

Hu, Yunpu, Leo Miyashita, Yoshihiro Watanabe, and Masatoshi Ishikawa. "Visual Calibration for Multiview Laser Doppler Speed Sensing." Sensors 19, no. 3 (January 30, 2019): 582. http://dx.doi.org/10.3390/s19030582.

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We present a novel calibration method for a multi-view laser Doppler speed sensing (MLDSS) system. In contrast with the traditional method where only the laser geometry is independently calibrated, the proposed method simultaneously optimizes all the laser parameters and directly associates the parameters with a motion sensing model. By jointly considering the consistency among laser Doppler velocimetry, the laser geometry and a visual marker tracking system, the proposed calibration method further boosts the accuracy of MLDSS. We analyzed the factors influencing the precision, and quantitatively evaluated the efficiency of the proposed method on several data sets.

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