Results 31 to 40 of about 5,760,414 (306)
Inverse Solution Error Analysis and Correction of Beam Steering System Based on Risley Prisms
Applied Sciences, 2022 The pointing accuracy of the Risley prisms beam-steering system mainly depends on the accuracy of the solution method and the impact of the error on the solution.
Yinuo Song +4 more
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Anisoplanatism in airborne laser communication
Optics Express, 2008 Airborne laser-communication systems require special considerations in size, complexity, power, and weight. We reduce the variability of the received signal by implementing optimized multiple-transmitter systems to average out the deleterious effects of turbulence.
James A, Louthain, Jason D, Schmidt
openaire +2 more sources
A fast method for morphological analysis of laser drilling holes [PDF]
, 2010 Version éditeur : http://jla.aip.org/resource/1/jlapen/v22/i4/p127_s1?isAuthorized=noThis paper presents an original method for analyzing laser drilled holes.
SCHNEIDER, Matthieu +7 more
core +1 more source
Experimental investigation of hydrodynamics of melt layer during laser cutting of steel [PDF]
, 2011 In laser cutting process, understanding of hydrodynamics of melt layer is significant, because it is an important factor which controls the final quality. In this work, we observed hydrodynamics of melt layer on kerf front in the case of laser cutting of
Remy Fabbro +3 more
core +1 more source
Laser ranging and communications for LISA
Optics Express, 2010 The Laser Interferometer Space Antenna (LISA) will use Time Delay Interferometry (TDI) to suppress the otherwise dominant laser frequency noise. The technique uses sub-sample interpolation of the recorded optical phase measurements to form a family of interferometric combinations immune to frequency noise.
Sutton, Andrew +3 more
openaire +3 more sources
Gas investigation for laser drilling [PDF]
, 2007 Version éditeur : http://jla.aip.org/resource/1/jlapen/v19/i3/p165_s1?isAuthorized=noThis article deals with the gas effect on percussion laser drilling in ms pulse duration range.
SCHNEIDER, Matthieu +9 more
core +1 more source
Sensors, 2022 Over the last two decades, Geiger-mode lidar (GML) systems have been developing rapidly in defense and commercial applications, demonstrating high point density and great collection efficiency. We presented a circular scanning GML system simulation model
Fanghua Liu +7 more
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The influence of position in overlap joints of Mg and Al alloys on microstructure and hardness of laser welds [PDF]
, 2013 Structure and properties of laser beam welding zone of dissimilar materials, AZ31 magnesium alloy and A5754 Aluminum alloy, are investigated. The microstructure and quality of the Mg/Al weld were studied by metallography, microhardness and optical ...
BANNOUR, Sana +11 more
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Experimental and numerical study of laser-assisted machining of Ti6Al4V titanium alloy [PDF]
, 2014 Laser-assisted machining combines several experimental parameters such as cutting speed, feed rate, depth of cut, laser power and distance between tool rake face and the laser beam axis.
GERMAIN, Guénaël +3 more
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Experiment of Suppressing Atmospheric Turbulence by Using Fast-Steering Mirror
Applied SciencesWith the aim of addressing the problem of spot drift caused by laser transmission in atmospheric turbulence, the effects of different weather conditions such as sunny, cloudy, rainy and sandstorm conditions on spot drift were measured at 0.42 km, 2 km ...
Yingmin Yuan, Xizheng Ke, Rui Wang
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