Results 11 to 20 of about 198,881 (290)
Phase-Shifting Projected Fringe Profilometry Using Binary-Encoded Patterns
Photonics, 2021 A phase unwrapping method for phase-shifting projected fringe profilometry is presented. It did not require additional projections to identify the fringe orders. The pattern used for the phase extraction could be used for phase unwrapping directly.
Nai-Jen Cheng, Wei-Hung Su
doaj +1 more source
Saturation-Induced Phase Error Compensation Method Using Complementary Phase
Micromachines, 2023 Intensity saturation can induce phase error and, thus, measurement error in fringe projection profilometry. To reduce saturation-induced phase errors, a compensation method is developed.
Yingying Wan +3 more
doaj +1 more source
Photonics, 2023 Simultaneous phase-shifting interferometry (SPSI) can simultaneously obtain multiple phase-shifted interferograms and can realize the dynamic wavefront measurement with the use of a phase-shifting algorithm. From the respect of a beam-splitting technique
Fuzhong Bai +5 more
doaj +1 more source
Reconstruction of Isolated Moving Objects by Motion-Induced Phase Shift Based on PSP
Applied Sciences, 2021 The reconstruction of moving objects based on phase shifting profilometry has attracted intensive interests. Most of the methods introduce the phase shift by projecting multiple fringe patterns, which is undesirable in moving object reconstruction as the
Ke Wu, Min Li, Lei Lu, Jiangtao Xi
doaj +1 more source
Phase shift in skyrmion crystals [PDF]
Nature Communications, 2021 AbstractThe magnetic skyrmion crystal is a periodic array of a swirling topological spin texture. Since it is regarded as an interference pattern by multiple helical spin density waves, the texture changes with the relative phase shifts among the constituent waves.
Satoru Hayami +2 more
openaire +4 more sources
A Fast-Locking All-Digital PLL With Triple-Stage Phase-Shifting
IEEE Access, 2021 This presents an all-digital phase-locked loop (ADPLL) system using triple-stage phase-shifting (TSPS) for fast locking. At the first stage, a phase-pulling multiplexer linearly pulls the phase of a feedback signal until the phase offset between the ...
Heon Hwa Cheong, Suhwan Kim
doaj +1 more source
Phase Shift Strategies in Phase Shifting Time Averaging Interferometry [PDF]
Experimental Techniques, 2021 AbstractClassical time-averaging interferometry technique is widely used for MEMS/MOEMS dynamic behavior investigations. It provides useful information on resonant vibration frequencies and mode shapes in the form of Bessel fringe images. To evaluate the information on objects’ vibration amplitude distribution, one needs to further process Bessel ...
A. Styk, H. Dziubecka - Bala
openaire +1 more source
Phase-Shifting Shearing Interference Microscope with Savart Shear Prism and Rotatable Analyzer
Proceedings, 2018 A phase-shifting shearing interference microscope (PSSIM) is introduced in this paper. It is constructed by placing a Savart shear prism between the objective and sample of a polarizing microscope with a rotatable analyzer as the phase-shifter, and it is
Shyh-Tsong Lin +3 more
doaj +1 more source
Metrology for Measuring Bumps in a Protection Layer Based on Phase Shifting Fringe Projection
Applied Sciences, 2022 We developed a telecentric 3D measurement system based on the fringe projection technique to measure phases corresponding to the 3D shape of bumps on a surface.
Yi-Sha Ku +5 more
doaj +1 more source
Applied Sciences, 2021 Interleaved power factor correction (PFC) is widely used circuit topology due to good efficiency and power density for single-switch boost PFC. As the differential mode (DM) electromagnetic interference (EMI) noise magnitude depends upon the input ...
Naser Nourani Esfetanaj +3 more
doaj +1 more source