Results 21 to 30 of about 198,881 (290)

Analysis of Core Loss Characteristics of Linear Phase-Shifting Transformer

open access: yesEnergy Reports, 2023
Linear phase-shifting transformer, as a new type of phase-shifting transformer, has the advantages of shifting phase at any angle, good expansibility, and easy modularization compared with the traditional core column phase-shifting transformer.
Changduo Zhou   +3 more
doaj   +1 more source

Head-Raising of Snake Robots Based on a Predefined Spiral Curve Method

open access: yesApplied Sciences, 2018
A snake robot has to raise its head to acquire a wide visual space for planning complex tasks such as inspecting unknown environments, tracking a flying object and acting as a manipulator with its raising part.
Xiaobo Zhang   +3 more
doaj   +1 more source

Iterative method for phase extraction from phase-shifting interferograms with spatial noise

open access: yesResults in Optics, 2021
We investigate an iterative method for phase extraction from phase-shifting interferograms with spatial noise. A generation process of an error caused by the spatial noise is analyzed.
Ribun Onodera   +3 more
doaj   +1 more source

Phase Unwrapping Method Using Single Frequency Phase Shifting Fringe Patterns in 3D Surface Measurement

open access: yesJournal of Harbin University of Science and Technology, 2022
In order to solve the problem of low measurement efficiency in traditional phase shifting profilometry, a phase unwrapping method using Fourier transform assisted phase-shifting method is proposed.
XU Shao-yi   +3 more
doaj   +1 more source

Morphology Evaluation of Microelectronic Packaging Substrates Using Shadow Moiré Technique

open access: yesIEEE Access, 2018
The surface quality and long-term reliability of packaging substrates in microelectronic packaging processes have become subjects of increasing concern as circuit board component density increases while the pitches of these components decrease.
Fulong Zhu   +4 more
doaj   +1 more source

Calibrated Phase-Shifting Digital Holographic Microscope Using a Sampling Moiré Technique

open access: yesApplied Sciences, 2018
A calibrated phase-shifting digital holographic microscope system capable of improving the quality of reconstructed images is proposed. Phase-shifting errors are introduced in phase-shifted holograms for numerous reasons, such as the non-linearity of ...
Peng Xia   +3 more
doaj   +1 more source

Characterizations and Use of Recycled Optical Components for Polarizing Phase-Shifting Interferometry Applications

open access: yesPhotonics, 2022
In this research, we report using optical components such as cubic beam splitters, lenses, diffraction gratings, and mirrors from broken, obsolete, or disused electronic devices to implement a simultaneous polarization-based phase-shifting ...
Juan M. Islas-Islas   +7 more
doaj   +1 more source

Comparison of Phase-Shifting Transformers Properties

open access: yesEnergies, 2022
This article presents different phase shifting transformers (PSTs) types and their influence on the transmitted active power and energy parameters.
Paweł Albrechtowicz   +2 more
doaj   +1 more source

Instantaneous phase shifting deflectometry

open access: yesOptics Express, 2016
An instantaneous phase shifting deflectometry measurement method is presented and implemented by measuring a time varying deformable mirror with an iPhone ® 6. The instantaneous method is based on multiplexing phase shifted fringe patterns with color, and decomposing them in x and y using Fourier techniques.
Isaac, Trumper   +2 more
openaire   +2 more sources

Parallel Phase-Shifting Digital Holographic Phase Imaging of Micro-Optical Elements with a Polarization Camera

open access: yesPhotonics, 2023
In this paper, we propose a measurement method of micro-optical elements with parallel phase-shifting digital holographic phase imaging. This method can record four phase-shifting holograms with a phase difference of π/2 in a single shot and correct the ...
Bingcai Liu   +6 more
doaj   +1 more source

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