The effect of near-infrared laser beam on the surface modification of metal complex based on 3D laser scanning system

2014 ◽  
Author(s):  
Mali Zhao ◽  
Tiegen Liu ◽  
Junfeng Jiang ◽  
Meng Wang
Keyword(s):  
Surface Modification ◽  
Laser Beam ◽  
Metal Complex ◽  
Laser Scanning ◽  
Near Infrared ◽  
Infrared Laser ◽  
Scanning System ◽  
3D Laser Scanning ◽  
Infrared Laser Beam ◽  
Laser Scanning System

scholarly journals Design of a Predictive RBF Compensation Fuzzy PID Controller for 3D Laser Scanning System

2020 ◽  
Vol 10 (13) ◽  
pp. 4662 ◽  
Author(s):  
Minghui Zhao ◽  
Xiaobin Xu ◽  
Hao Yang ◽  
Zhijie Pan
Keyword(s):  
Neural Network ◽  
Laser Scanning ◽  
Control Method ◽  
Rbf Neural Network ◽  
Step Response ◽  
Scanning System ◽  
3D Laser Scanning ◽  
Pitching Motion ◽  
Fuzzy Algorithm ◽  
Laser Scanning System

A new proportional integral derivative (PID) control method is proposed for the 3D laser scanning system converted from 2D Lidar with a pitching motion device. It combines the advantages of a fuzzy algorithm, a radial basis function (RBF) neural network and a predictive algorithm to control the pitching motion of 2D Lidar quickly and accurately. The proposed method adopts the RBF neural network and feedback compensation to eliminate the unknown nonlinear part in the Lidar pitching motion, adaptively adjusting the PID parameter by a fuzzy algorithm. Then, the predictive control algorithm is adopted to optimize the overall controller output in real time. Finally, the simulation results show that the step response time of the Lidar pitching motion system using the control method is reduced from 15.298 s to 1.957 s with a steady-state error of 0.07°. Meanwhile, the system still has favorable response performance for the sinusoidal and step inputs under model mismatch and large disturbance. Therefore, the control method proposed above can improve the system performance and control the pitching motion of the 2D Lidar effectively.

Design of Light-Small Mobile 3D Laser Measurement System

2013 ◽  
Vol 405-408 ◽  
pp. 3032-3036
Author(s):  
Yi Bo Sun ◽  
Xin Qi Zheng ◽  
Zong Ren Jia ◽  
Gang Ai
Keyword(s):  
Point Cloud ◽  
Laser Scanning ◽  
Laser Scanner ◽  
Digital Camera ◽  
Scanning System ◽  
Point Cloud Data ◽  
3D Laser Scanning ◽  
Large Area ◽  
Cloud Data ◽  
Laser Scanning System

At present, most of the commercial 3D laser scanning measurement systems do work for a large area and a big scene, but few shows their advantage in the small area or small scene. In order to solve this shortage, we design a light-small mobile 3D laser scanning system, which integrates GPS, INS, laser scanner and digital camera and other sensors, to generate the Point Cloud data of the target through data filtering and fusion. This system can be mounted on airborne or terrestrial small mobile platform and enables to achieve the goal of getting Point Cloud data rapidly and reconstructing the real 3D model. Compared to the existing mobile 3D laser scanning system, the system we designed has high precision but lower cost, smaller hardware and more flexible.

Laser Deposition of Polymer Micro- and Nanoassembly from Solution Using Focused Near-Infrared Laser Beam

2007 ◽  
Vol 46 (1) ◽  
pp. 449-454 ◽  
Author(s):  
Yu Nabetani ◽  
Hiroyuki Yoshikawa ◽  
Andrew C. Grimsdale ◽  
Klaus Müllen ◽  
Hiroshi Masuhara
Keyword(s):  
Laser Beam ◽  
Near Infrared ◽  
Infrared Laser ◽  
Laser Deposition ◽  
Infrared Laser Beam

Manipulation of liquid crystal textures with a focused near infrared laser beam

1997 ◽  
Vol 71 (15) ◽  
pp. 2085-2087 ◽  
Author(s):  
Jun-ichi Hotta ◽  
Keiji Sasaki ◽  
Hiroshi Masuhara
Keyword(s):  
Liquid Crystal ◽  
Laser Beam ◽  
Near Infrared ◽  
Infrared Laser ◽  
Infrared Laser Beam
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