Video-rate fringe analyzer based on phase-shifting electronic moiré patterns

1997 ◽  
Vol 36 (32) ◽  
pp. 8403 ◽  
Author(s):  
Jun-ichi Kato ◽  
Ichirou Yamaguchi ◽  
Toru Nakamura ◽  
Shigesumi Kuwashima
Keyword(s):  
Phase Shifting ◽  
Moire Patterns ◽  
Moiré Patterns

Research on Filtering Method of Phase Shifting Digital Moiré Patterns

2011 ◽  
Vol 48 (5) ◽  
pp. 051001
Author(s):  
满玉春 Man Yuchun ◽  
张忠玉 Zhang Zhongyu ◽  
李锐钢 Li Ruigang ◽  
张学军 Zhang Xuejun
Keyword(s):  
Phase Shifting ◽  
Filtering Method ◽  
Moire Patterns ◽  
Digital Moiré ◽  
Moiré Patterns

Single-shot digital phase-shifting Moiré patterns for 3D topography

2020 ◽  
Vol 60 (4) ◽  
pp. A84
Author(s):  
Haiyun Guo ◽  
Haowen Zhou ◽  
Partha P. Banerjee
Keyword(s):  
Phase Shifting ◽  
Single Shot ◽  
Digital Phase ◽  
3D Topography ◽  
Moire Patterns ◽  
Moiré Patterns

Solving the Two-Objective Shop Scheduling Problem in MTO Manufacturing Systems by a Novel Genetic Algorithm

2011 ◽  
Vol 314-316 ◽  
pp. 1315-1320 ◽  
Author(s):  
Li Li Yao ◽  
Hai Bo Shi ◽  
Chang Liu ◽  
Zhong Hua Han
Keyword(s):  
High Speed ◽  
Manufacturing Systems ◽  
Phase Shifting ◽  
Aspheric Surface ◽  
Shop Scheduling ◽  
3D Shape ◽  
Moire Patterns ◽  
Negative Effect ◽  
Digital Moiré ◽  
Moiré Patterns

With the characteristics of un-touching, high-automatic and high-speed, we measured 3D shape by digital moiré patterns. And it can measure 3D shape without compensator, auxiliary mirror, hologram and other assistant modules. So it is widely used in measurement of 3D shape. But with the negative effect of grating area and CCD resolution of the camera, it has some problems in large aperture, steep aspheric surface, even off-axis aspheric testing. Focus on these problems; this paper established a sub-region splicing measurement of aspheric surface by using the combination of digital moire patterns and digital phase shifting technology. This paper also illustrated the basic theory, and the mathematical implementation procedure. In all, sub-region splicing digital moiré patterns can be considered as another method, which beyond compensation tests to measurement of aspheric surface.

Moire Fringes on Precipitates in Quenched and Aged Beryllium

1968 ◽  
Vol 26 ◽  
pp. 426-427
Author(s):  
F. J. Fraikor ◽  
A. W. Brewer
Keyword(s):  
Ternary Phase ◽  
Volume Fraction ◽  
Age Hardening ◽  
Orientation Relationships ◽  
Solute Content ◽  
Moiré Fringes ◽  
Moire Patterns ◽  
Total Volume Fraction ◽  
Diffraction Patterns ◽  
Moiré Patterns

A number of investigators have examined moire patterns on precipitate particles in various age-hardening alloys. For example, Phillips has analyzed moire fringes at cobalt precipitates in copper and Von Heimendahl has reported on moire fringes in the system Al-Au. Recently, we have observed moire patterns on impurity precipitates in beryllium quenched in brine from 1000°C and aged at various temperatures in the range of 500-800°C. This heat treatment of beryllium rolled from vacuum cast ingots produces the precipitation of both an fee ternary phase, AlFeBe4, and an hcp binary phase, FeBe11. However, unlike a typical age-hardening alloy, the solute content of this material is low (less than 1000 ppm of Fe and 600 ppm of Al) and hence the total volume fraction of precipitates is small. Therefore there is some difficulty in distinguishing the precipitates and their orientation relationships with the beryllium matrix since the weak precipitate spots generally do not appear on the diffraction patterns.

Measurement of Moiré Patterns in 3D Display

2019 ◽  
pp. 986
Author(s):  
Hea In Jeong ◽  
Seo Young Choi ◽  
Young Ju Jeong
Keyword(s):  
3D Display ◽  
Moire Patterns ◽  
Moiré Patterns

Main Crystallographic Situations for the Formation of X-Ray Moiré Patterns

1991 ◽  
Vol 126 (1) ◽  
pp. 41-47
Author(s):  
P. A. Bezirganyan ◽  
S. E. Bezirganyan ◽  
A. O. Aboyan
Keyword(s):  
X Ray ◽  
Moire Patterns ◽  
Moiré Patterns

scholarly journals Vortex dynamics, pinning, and angle-dependent motion on moiré patterns

2021 ◽  
Vol 104 (2) ◽  
Author(s):  
Wenzhao Li ◽  
C. J. O. Reichhardt ◽  
B. Jankó ◽  
C. Reichhardt
Keyword(s):  
Vortex Dynamics ◽  
Moire Patterns ◽  
Moiré Patterns

scholarly journals An equivalent configuration approach for the moiré patterns appearing due to the reflecting surface in display system

2014 ◽  
Vol 22 (20) ◽  
pp. 24840 ◽  
Author(s):  
Seok-Joo Byun ◽  
Seok Yong Byun ◽  
Jangkyo Lee ◽  
Won Mok Kim ◽  
Taek-Sung Lee
Keyword(s):  
Display System ◽  
Moire Patterns ◽  
Reflecting Surface ◽  
Moiré Patterns

scholarly journals Giant magnetic field from moiré induced Berry phase in homobilayer semiconductors

2019 ◽  
Vol 7 (1) ◽  
pp. 12-20 ◽  
Author(s):  
Hongyi Yu ◽  
Mingxing Chen ◽  
Wang Yao
Keyword(s):  
Magnetic Field ◽  
Berry Phase ◽  
Transition Metal Dichalcogenides ◽  
Real Space ◽  
Quantum Spin ◽  
Moire Patterns ◽  
Metal Dichalcogenides ◽  
Berry Phases ◽  
Different Origins ◽  
Moiré Patterns

Abstract When quasiparticles move in condensed matters, the texture of their internal quantum structure as a function of position and momentum can give rise to Berry phases that have profound effects on the material’s properties. Seminal examples include the anomalous Hall and spin Hall effects from the momentum-space Berry phases in homogeneous crystals. Here, we explore a conjugate form of the electron Berry phase arising from the moiré pattern: the texture of atomic configurations in real space. In homobilayer transition metal dichalcogenides, we show that the real-space Berry phase from moiré patterns manifests as a periodic magnetic field with magnitudes of up to hundreds of Tesla. This quantity distinguishes moiré patterns from different origins, which can have an identical potential landscape, but opposite quantized magnetic flux per supercell. For low-energy carriers, the homobilayer moirés realize topological flux lattices for the quantum-spin Hall effect. An interlayer bias can continuously tune the spatial profile of the moiré magnetic field, whereas the flux per supercell is a topological quantity that can only have a quantized jump observable at a moderate bias. We also reveal the important role of the non-Abelian Berry phase in shaping the energy landscape in small moiré patterns. Our work points to new possibilities to access ultra-high magnetic fields that can be tailored to the nanoscale by electrical and mechanical controls.

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