Novel prototype instruments for real-time in-process nanoparticle detection in fluid streams using structured laser beam detection and flexible algorithmic diagnostics

2014 ◽  
Author(s):  
D.C. Carpenter ◽  
R. Battle ◽  
M. Archibald ◽  
J. Shamir ◽  
M. Teichner
Keyword(s):  
Laser Beam ◽  
Real Time ◽  
Nanoparticle Detection

scholarly journals Real Time Trajectory Correction System Of Optical Head In Laser Welding

2015 ◽  
Vol 9 (4) ◽  
pp. 265-269 ◽  
Author(s):  
Wojciech Cieszyński ◽  
Michał Zięba ◽  
Jacek Reiner
Keyword(s):  
Laser Beam ◽  
Laser Welding ◽  
Real Time ◽  
Laser Processing ◽  
High Accuracy ◽  
Precise Positioning ◽  
Optical Head ◽  
Welding Technology ◽  
Trajectory Correction ◽  
Correction System

Abstract Application of laser welding technology requires that the laser beam is guided through the whole length of the joint with sufficiently high accuracy. This paper describes result of research on development of optomechatronic system that allows for the precise positioning of the laser head’s TCP point on the edge of welded elements during laser processing. The developed system allows for compensation of workpiece’s fixture inaccuracies, precast distortions and workpiece deformations occurring during the process.

Real-Time Diagnosis of Etching and Deposition Processes by Spectroscopic Ellipsometry

1983 ◽  
Vol 29 ◽  
Author(s):  
D. E. Aspnes ◽  
R. P. H. Chang
Keyword(s):  
High Pressure ◽  
Data Analysis ◽  
Laser Beam ◽  
Real Time ◽  
Spectroscopic Ellipsometry ◽  
Chemical Etching ◽  
Polarization State ◽  
Surface Information ◽  
Deposition Processes ◽  
Time Diagnosis

ABSTRACTRecent advances in instrumentation and data analysis have made spectroscopic ellipsometry a routine analytic tool with submonolayer sensitivity for monitoring and controlling cleaning, etching, deposition, or other processes that take place in relatively high-pressure or reactive environments. We discuss representative applications in chemical etching, plasma processing, and MOCVD to illustrate analytical procedures and to indicate other potential uses of the technique. The possibility of extracting surface information already carried in the polarization state of the processing laser beam is also discussed.

Qualitative real-time range extraction for preplanned scene partitioning using laser beam coding

2005 ◽  
Vol 26 (11) ◽  
pp. 1772-1781 ◽  
Author(s):  
Didi Sazbon ◽  
Zeev Zalevsky ◽  
Ehud Rivlin
Keyword(s):  
Laser Beam ◽  
Real Time ◽  
Time Range

Real-time control of the rotation rate of a particle trapped in a focused laser beam

2001 ◽  
Author(s):  
M. A. Rakhmatulin ◽  
Svetlana P. Kotova ◽  
Vladimir G. Volostnikov
Keyword(s):  
Laser Beam ◽  
Real Time ◽  
Rotation Rate ◽  
Real Time Control ◽  
Time Control

Real time monitoring of laser beam welding keyhole depth by laser interferometry

2014 ◽  
Vol 19 (7) ◽  
pp. 560-564 ◽  
Author(s):  
J. J. Blecher ◽  
C. M. Galbraith ◽  
C. Van Vlack ◽  
T. A. Palmer ◽  
J. M. Fraser ◽  
...  
Keyword(s):  
Laser Beam ◽  
Real Time ◽  
Laser Beam Welding ◽  
Laser Interferometry ◽  
Real Time Monitoring
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