Image-height offset in TTL on-axis alignment method

1990 ◽  
Author(s):  
Noriaki Ishio ◽  
Keiji Fujiwara ◽  
Hitoshi Nagata
Keyword(s):  
Alignment Method ◽  
Axis Alignment

scholarly journals Automated Axis Alignment for a Nanomanipulator inside SEM and Its Error Optimization

Scanning ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Chao Zhou ◽  
Lu Deng ◽  
Long Cheng ◽  
Zhiqiang Cao ◽  
Shuo Wang ◽  
...  
Keyword(s):  
Average Method ◽  
Closed Loop ◽  
Alignment Method ◽  
Visual Servo ◽  
End Effector ◽  
Axis Alignment ◽  
Deposition Effect ◽  
Relationship Of ◽  
The Relationship ◽  
Error Optimization

In the motion of probing nanostructures, repeating position and movement is frequently happing and tolerance for position error is stringent. The consistency between the axis of manipulators and image is very significant since the visual servo is the most important tool in the automated manipulation. This paper proposed an automated axis alignment method for a nanomanipulator inside the SEM by recognizing the position of a closed-loop controlling the end-effector, which can characterize the relationship of these two axes, and then the rotation matrix can be calculated accordingly. The error of this method and its transfer function are also calculated to compare the iteration method and average method. The method in this paper can accelerate the process of axis alignment to avoid the electron beam induced deposition effect on the end tips. Experiment demonstration shows that it can achieve a 0.1-degree precision in 90 seconds.

Core-axis-alignment method to achieve ultra-low-loss fusion splicing for single-mode optical fibers

1984 ◽  
Vol 9 (6) ◽  
pp. 255 ◽  
Author(s):  
Osamu Kawata ◽  
Kouichi Hoshino ◽  
Koushi Ishihara
Keyword(s):  
Optical Fibers ◽  
Single Mode ◽  
Alignment Method ◽  
Low Loss ◽  
Axis Alignment

Axis alignment method in the rotating photogrammetric system

2021 ◽  
Vol 60 (06) ◽  
Author(s):  
Yanli Hou ◽  
Xianyu Su ◽  
Wenjing Chen
Keyword(s):  
Alignment Method ◽  
Axis Alignment

Effect of thermal annealing on grain boundary chemistry of polycrystalline TiBa2Ca2Cu3Oy films

1994 ◽  
Vol 52 ◽  
pp. 968-969
Author(s):  
Z. L. Wang ◽  
C. L. Briant ◽  
J. DeLuca ◽  
A. Goyal ◽  
D. M. Kroeger ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Weak Link ◽  
Zero Field ◽  
Stabilized Zirconia ◽  
Local Texture ◽  
Transmission Electron ◽  
Axis Alignment ◽  
Boundary Chemistry ◽  
Small Misorientation ◽  
Misorientation Angles

Recent studies have shown that spray-pyrolyzed films of the Tl-1223 compound (TlxBa2Ca2Cu3Oy, with 0.7 < × < 0.95) on polycrystalline yttrium stabilized zirconia substrates can be prepared which have critical current density Jc near 105 A/cm2 at 77 K, in zero field. The films are polycrystalline, have excellent c-axis alignment, and show little evidence of weak-link behavior. Transmission electron microscopy (TEM) studies have shown that most grain boundaries have small misorientation angles. It has been found that the films have a nigh degree of local texture indicative of colonies of similarly oriented grains. It is believed that inter-colony conduction is enhanced by a percolative network of small angle boundaries at colony interfaces. It has also been found that Jc is increased by a factor of 4 - 5 after the films were annealed at 600 °C in oxygen. This study is thus carried out to determine the effect on grain boundary chemistry of the heat treatment.

scholarly journals Research on initial alignment method of vehicle-mounted SINS based on reverse navigation

2021 ◽  
Vol 1846 (1) ◽  
pp. 012075
Author(s):  
Chen Yang ◽  
Yuanwen Cai ◽  
Chaojun Xin ◽  
Meiling Shi
Keyword(s):  
Alignment Method ◽  
Initial Alignment

Anti-swaying self-alignment method based on observation vector inertia for SINS under latitude uncertainty

Measurement ◽  
2021 ◽  
pp. 109250
Author(s):  
Hongliang Zhang ◽  
Yilan Zhou ◽  
Tengchao Huang ◽  
Lei Wang
Keyword(s):  
Alignment Method ◽  
Observation Vector
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