Novel method to mitigate ghost images in laser beam diagnostic and laser vision systems

2019 ◽  
Author(s):  
Michael J. Scaggs ◽  
Gilbert Haas
Keyword(s):  
Laser Beam ◽  
Vision Systems ◽  
Laser Vision ◽  
Novel Method ◽  
Ghost Images

A novel method to reduce dross in laser beam cutting of Ti-6Al-4 V alloy sheet

2021 ◽  
Vol 64 ◽  
pp. 95-112
Author(s):  
Anitesh Kumar Singh ◽  
Kalinga Simant Bal ◽  
Abhishek Rudra Pal ◽  
Dipanjan Dey ◽  
Asimava Roy Choudhury
Keyword(s):  
Laser Beam ◽  
Alloy Sheet ◽  
Novel Method

scholarly journals Drift Reduction of a 4-DOF Measurement System Caused by Unstable Air Refractive Index

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6329
Author(s):  
Ruijun Li ◽  
Yongjun Wang ◽  
Pan Tao ◽  
Rongjun Cheng ◽  
Zhenying Cheng ◽  
...  
Keyword(s):  
Refractive Index ◽  
Laser Beam ◽  
Measurement System ◽  
Degrees Of Freedom ◽  
Cost Effective ◽  
Control Mode ◽  
Detection Accuracy ◽  
Long Distance ◽  
Cost Effective Method ◽  
Novel Method

Laser beam drift greatly influences the accuracy of a four degrees of freedom (4-DOF) measurement system during the detection of machine tool errors, especially for long-distance measurement. A novel method was proposed using bellows to serve as a laser beam shield and air pumps to stabilize the refractive index of air. The inner diameter of the bellows and the control mode of the pumps were optimized through theoretical analysis and simulation. An experimental setup was established to verify the feasibility of the method under the temperature interference condition. The results indicated that the position stability of the laser beam spot can be improved by more than 79% under the action of pumping and inflating. The proposed scheme provides a cost-effective method to reduce the laser beam drift, which can be applied to improve the detection accuracy of a 4-DOF measurement system.

Laser-Beam-Triggered Microcavitation: A Novel Method for Selective Cell Destruction

2001 ◽  
Vol 156 (4) ◽  
pp. 399-407 ◽  
Author(s):  
Dariusz Leszczynski ◽  
Costas M. Pitsillides ◽  
Riikka K. Pastila ◽  
R. Rox Anderson ◽  
Charles P. Lin
Keyword(s):  
Laser Beam ◽  
Cell Destruction ◽  
Novel Method

scholarly journals Novel method for evaluation of hindfoot alignment in weight-bearing position using laser beam

2018 ◽  
Vol 30 (3) ◽  
pp. 474-478 ◽  
Author(s):  
Tadasuke Ohnishi ◽  
Mitsumasa Hida ◽  
Yukio Nakamura ◽  
Chikamune Wada
Keyword(s):  
Laser Beam ◽  
Weight Bearing ◽  
Hindfoot Alignment ◽  
Novel Method
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