scholarly journals Positioning of Large-Scale High-Precision Stage with Vibration Suppression PTC

2008 ◽  
Vol 41 (2) ◽  
pp. 3124-3129 ◽  
Author(s):  
Koichi Sakata ◽  
Hiroshi Fujimoto ◽  
Kazuaki Saiki
Keyword(s):  
High Precision ◽  
Large Scale ◽  
Vibration Suppression ◽  
Precision Stage

Model-based Control Techniques for Large-Scale High-Precision Stage

2020 ◽  
Vol 140 (4) ◽  
pp. 272-280
Author(s):  
Wataru Ohnishi ◽  
Hiroshi Fujimoto ◽  
Koichi Sakata
Keyword(s):  
High Precision ◽  
Large Scale ◽  
Model Based Control ◽  
Precision Stage ◽  
Control Techniques ◽  
Model Based

scholarly journals Application of Perfect Tracking Control to Large-Scale High-Precision Stage

2010 ◽  
Vol 43 (18) ◽  
pp. 188-193 ◽  
Author(s):  
Hiroshi Fujimoto ◽  
Koichi Sakata ◽  
Kazuaki Saiki
Keyword(s):  
High Precision ◽  
Tracking Control ◽  
Large Scale ◽  
Precision Stage

Fast operation of large-scale high-precision matrix based on GPU

2009 ◽  
Vol 29 (4) ◽  
pp. 1177-1179 ◽  
Author(s):  
Chang SU ◽  
Zhong-liang FU ◽  
Yu-chen TAN
Keyword(s):  
High Precision ◽  
Large Scale ◽  
Precision Matrix

scholarly journals A High-Precision Registration Technology Based on Bundle Adjustment in Structured Light Scanning System

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Jianying Yuan ◽  
Qiong Wang ◽  
Xiaoliang Jiang ◽  
Bailin Li
Keyword(s):  
High Precision ◽  
Large Scale ◽  
Structured Light ◽  
Bundle Adjustment ◽  
Scanning System ◽  
Control Points ◽  
Registration Method ◽  
Global Control ◽  
3D Data ◽  
Structured Light Scanning

The multiview 3D data registration precision will decrease with the increasing number of registrations when measuring a large scale object using structured light scanning. In this paper, we propose a high-precision registration method based on multiple view geometry theory in order to solve this problem. First, a multiview network is constructed during the scanning process. The bundle adjustment method from digital close range photogrammetry is used to optimize the multiview network to obtain high-precision global control points. After that, the 3D data under each local coordinate of each scan are registered with the global control points. The method overcomes the error accumulation in the traditional registration process and reduces the time consumption of the following 3D data global optimization. The multiview 3D scan registration precision and efficiency are increased. Experiments verify the effectiveness of the proposed algorithm.

Research on the Key Technologies for New Large Dual-Platen High-Precision Clamping System

2010 ◽  
Vol 97-101 ◽  
pp. 64-68
Author(s):  
Jian Chen ◽  
Jin Wang ◽  
Guo Dong Lu ◽  
Zheng Qi Ling
Keyword(s):  
High Precision ◽  
Large Scale ◽  
New Technologies ◽  
Impact Factors ◽  
Adaptive Correction ◽  
Hydraulic Servo ◽  
New Type ◽  
Clamping System ◽  
Plastic Parts ◽  
First Time

High- precision and large scale are the developing trend for injection molding machine clamping system .This paper compared the characteristics of three-platen toggle and dual-platen hydraulic clamping system. The key impact factors that effecting plastic parts` precision from clamping system were discussed systematically first time. Based on these analyses, a new clamping system has been proposed and manufactured to improve the plastics parts` precision, including three new technologies: new type dual-platen structure, parallelism adaptive correction technology and numerical controlled hydraulic servo system technology. It has been applied in practical machine successfully, and experiment result proves that it is effective enough to satisfying the high-precision molding of large plastics parts.

Fast and high precision algorithms for optimization in large-scale genomic problems

2004 ◽  
Vol 28 (4) ◽  
pp. 281-290 ◽  
Author(s):  
D.I. Mester ◽  
Y.I. Ronin ◽  
E. Nevo ◽  
A.B. Korol
Keyword(s):  
High Precision ◽  
Large Scale
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