X Dai, X Shao, Z Geng, F Yang, Y Jiang, X He - Optics Communications, 2015 - Elsevier
… -fluctuation electronic speckle pattern interferometry (AF-ESPI) with radial basis function (RBF) was proposed to investigate vibration characteristics of structures. The vibration patterns …
… an effective method to reduce near-field speckle noise at the … transducer (PZT) vibrating in the radial direction. The fiber was … the speckle contrast and vibration effect quantitatively with …
A Moreau, D Borza, I Nistea - Strain, 2008 - Wiley Online Library
… Speckle noise was reduced by using high-resolution time-averaged SI [24]. The radial distortions were measured by a camera calibration procedure [26]. For the setup used, the …
A Albertazzi Gonçalves Jr… - Advances in speckle …, 2011 - Wiley Online Library
… This chapter describes radial out‐of‐plane interferometers to … It shows some applications of in‐plane radial interferometers. … The chapter presents special configurations of digital speckle …
D Halpaap, CE García-Guerra, M Vilaseca… - Scientific reports, 2019 - nature.com
… We also compare the results with the specklereduction that is obtained with a vibrating … Thus, assuming PSF azimuthal symmetry, we calculate the radial variation of the speckle contrast …
… of speckle contrast at the output of multimode fibers (MMFs) using a cylindrical piezoelectric transducer (PZT) vibrating in the radial … light passed through the vibrating PZT-fiber assembly …
CH Huang, CC Ma - AIAA journal, 1998 - arc.aiaa.org
… solving the axisymmetric vibrations of radially polarized piezoelectrichomogeneousceramicstubes.… They then extended the method to study the problems …
Y Fujimaki, H Taniguchi - Laser Resonators, Microresonators …, 2014 - spiedigitallibrary.org
… Specklereduction techniques which use vibrating multimode fiber are … speckle-free pattern was obtained by applying both vibration and bending. We speculate that specklereduction …
MC Shellabear, JR Tyrer - Laser Technologies in Industry, 1988 - spiedigitallibrary.org
… is vibrating in its axisymmetric radial mode, so that every point on a given circumference is vibratingradially … is no horizontal component (because the radialvibration is vertical), and the …