Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Alfred E. Puro"'
Publikováno v:
2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech).
The paper presents the derivation of the equation for express determination of surface residual stresses in GRIN glass rods with axially symmetrical refractive index distribution n(r). At n(r)=const, it becomes the V.L. Indenbom’s relation for quen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92f618be3a657b6b7067dcdfd8cf1caa
https://doi.org/10.1109/eexpolytech50912.2020.9243998
https://doi.org/10.1109/eexpolytech50912.2020.9243998
Publikováno v:
PROCEEDINGS OF THE XV INTERNATIONAL CONFERENCE «PHYSICS OF DIELECTRICS».
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ded61895374959c1f45dcad1a2f58b4
https://doi.org/10.1063/5.0033775
https://doi.org/10.1063/5.0033775
Publikováno v:
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech).
The paper presents the results of the residual stresses reconstruction and their influence on the refractive index profile (RIP) in a number of strengthened preforms for single-mode optical fibers. Strengthening layers were formed by external and int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc38c5c3e821a49bfaaf2eab6be7bd28
https://doi.org/10.1109/eexpolytech.2019.8906874
https://doi.org/10.1109/eexpolytech.2019.8906874
Autor:
Alfred E. Puro, Dmitriy D. Karov
Publikováno v:
2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech).
This work presents an application of integrated photoelasticity for non-destructive reconstructions of residual stresses in an axially symmetric gradient index (GRIN) optical structure. Transformation of the polarization of light is measured in a pla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ad2c45554e910491df0ce50d98e5897
https://doi.org/10.1109/eexpolytech.2018.8564365
https://doi.org/10.1109/eexpolytech.2018.8564365
Autor:
Dmitry D. Karov, Alfred E. Puro
Publikováno v:
St. Petersburg Polytechnical University Journal: Physics and Mathematics. 1:24-28
The possibility of optical tomography applying to investigation of a two-dimensional and a three-dimensional stressed state in single cubic crystals has been studied. Stresses are determined within the framework of the Maxwell piezo-optic law (linear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8df58074bbb167528b3b207c01d992be
https://doi.org/10.1016/j.spjpm.2015.03.012
https://doi.org/10.1016/j.spjpm.2015.03.012
Autor:
Alfred E. Puro
Publikováno v:
Inverse Problems. 17:179-188
A variety of inversions of the exponential Radon transform have been derived based on the circular harmonic transform in Fourier space by several research groups. In this paper, we derive a Cormack-type inversion of the exponential Radon transform by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30d0cad55fcc4bf56feaa475ec64c6c7
https://doi.org/10.1088/0266-5611/17/1/313
https://doi.org/10.1088/0266-5611/17/1/313
Autor:
Alfred E. Puro
Publikováno v:
Inverse Problems. 14:1315-1330
A method of using a magnetopolariscope for reconstructing stress fields by means of the tomography technique is proposed. Stresses are determined within the framework of the Maxwell piezo-optic law (linear dependence of the permittivity tensor on str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e26477c0fe275ffc9ee62642d4fddeff
https://doi.org/10.1088/0266-5611/14/5/015
https://doi.org/10.1088/0266-5611/14/5/015
Autor:
Hillar K. Aben, Alfred E. Puro
Publikováno v:
Inverse Problems. 13:215-221
The possibility of applying photoelastic tomography (integrated photoelasticity) for investigating a three-dimensional birefringent flow is studied. Tomographic equations of the strain rates are reduced to a vector analogue of the Radon equation by d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72cba40c333de2b9575f5e7059bb13ec
https://doi.org/10.1088/0266-5611/13/2/002
https://doi.org/10.1088/0266-5611/13/2/002
Publikováno v:
SPIE Proceedings.
General algorithm of integrated photoelasticity is complicated and leads to nonlinear relationships between the stress components and measurement data. It is shown that effective algorithms for determining completely the axisymmetric state of stress
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa6aee3b9c4dc062f475147bd688e140
https://doi.org/10.1117/12.242085
https://doi.org/10.1117/12.242085
Publikováno v:
SPIE Proceedings.
Integrated photoelasticity, a nondestructive method of three-dimensional stress analysis, is treated as optical tomography of the stress tensor field. Distinguishing features of the optical tensor field tomography are considered. Since in the general
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a678ab386b8f17001f81efc811258d59
https://doi.org/10.1117/12.131894
https://doi.org/10.1117/12.131894