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Symposium on Optics in Industry最新文献

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Optical system for the supervision of the operation of a induction motor 监视感应电动机运行的光学系统
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.912150
V. M. Villanueva-Reyes, R. A. Vázquez-Nava
{"title":"Optical system for the supervision of the operation of a induction motor","authors":"V. M. Villanueva-Reyes, R. A. Vázquez-Nava","doi":"10.1117/12.912150","DOIUrl":"https://doi.org/10.1117/12.912150","url":null,"abstract":"In this work we present an optical system for the supervision of the operation of an induction motor. We used a Cyclic interferometer for the measurement of the vibrations produced by the motor motion and obtain a frequency spectrum via a Fourier transform of the signal. According to the spectrum, we can know the operation conditions of the induction motor. The optical system consists of a Cyclic Interferometer, a data acquisition board and virtual instrument.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115708116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystallinity and vinyl groups formation in polyethylene films exposed to UV-B radiation 暴露在UV-B辐射下的聚乙烯薄膜的结晶度和乙烯基形成
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.911955
A. Martínez-Romo, R. González-Mota, J. J. Soto-Bernal, C. Frausto-Reyes, I. Rosales-Candelas, E. I. Muñoz-Campos
{"title":"Crystallinity and vinyl groups formation in polyethylene films exposed to UV-B radiation","authors":"A. Martínez-Romo, R. González-Mota, J. J. Soto-Bernal, C. Frausto-Reyes, I. Rosales-Candelas, E. I. Muñoz-Campos","doi":"10.1117/12.911955","DOIUrl":"https://doi.org/10.1117/12.911955","url":null,"abstract":"Polyethylene (PE), is a polymer formed by carbon-carbon single bonds, is a very stable material with a very slow degradation rate. In this paper, polyethylene films bag type were exposed to UV-B radiation (320-280 nm) at different exposure times (2 to 12 days). The UV radiation effects on PE samples were characterized using infrared spectroscopy with attenuated total reflectance (ATR). The vinyl group formation indicates the PE degradation. These chemical groups have IR absorption in 900-1300 cm-1; additionally the degree of crystallinity increase with the increasing of the exposure time. The experiment showed significant changes in PE molecular structure.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116904698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
C-band optical fibers chromatic dispersion measurement at CENAM c波段光纤色散在CENAM的测量
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.910299
Z. E. Ruiz, B. E. Ayala, E. Rosas, I. Torres-Gómez, C. H. Matamoros García, J. Huerta-Ruelas, N. Arzate
{"title":"C-band optical fibers chromatic dispersion measurement at CENAM","authors":"Z. E. Ruiz, B. E. Ayala, E. Rosas, I. Torres-Gómez, C. H. Matamoros García, J. Huerta-Ruelas, N. Arzate","doi":"10.1117/12.910299","DOIUrl":"https://doi.org/10.1117/12.910299","url":null,"abstract":"Here we report on the first CENAM realization of the phase-shift method for chromatic dispersion measurements in mono-mode phase-shifted optical fibers used for the telecommunications C-band (1 550 nm). This chromatic dispersion measurement and calibration capability development at CENAM will provide the Mexican telecommunications industry with a formally established SI units traceability source, thus promoting this rapidly growing and high impact economic sector competitiveness in Mexico. We also identified a 40 MHz modulation frequency, a 2.5 nm wavelength step and the 1 535 nm to 1 570 nm wavelength scanning range, as the optimum experimental parameters that have to be set in order to obtain experimental data which numerical Sellmeier polynomials fittings produce representative determinations for the group delay and the chromatic dispersion. We also obtained 1 549.388 nm ± 0.098 nm, (k=1), for the zero dispersion wavelength, and 0.719 7 ps-nm-2 ± 0.005 5 ps·nm-2, (k=1), for the zero dispersion slope of the tested optical fiber.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128885768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Topometry and color association by RGB fringe projection technique 基于RGB条纹投影技术的地形测量与颜色关联
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.913344
Y. Y. López Dóminguez, Amalia G. Martinez, J. Rayas, K. Genovese
{"title":"Topometry and color association by RGB fringe projection technique","authors":"Y. Y. López Dóminguez, Amalia G. Martinez, J. Rayas, K. Genovese","doi":"10.1117/12.913344","DOIUrl":"https://doi.org/10.1117/12.913344","url":null,"abstract":"Three-dimensional object topography is obtained by using the fringe projection technique. In fringe projection technique, digitalization is done when black and white lines are projected over the sample object and the image is captured by the CCD. It is applied the phase shifting method to evaluate the phase of the projected fringes. In this paper it is proposed a method in which red, green and blue fringes are projected sequentially. It is obtained the topography to each color (RGB) and finally the three obtained shapes are averaged. By using this method, we obtain information about color, texture and topography details of the object.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130769010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Three beams phase-shifting interferometry by their amplitude variation 三光束振幅变化相移干涉测量
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.913313
C. Meneses-Fabian, U. Rivera-Ortega
{"title":"Three beams phase-shifting interferometry by their amplitude variation","authors":"C. Meneses-Fabian, U. Rivera-Ortega","doi":"10.1117/12.913313","DOIUrl":"https://doi.org/10.1117/12.913313","url":null,"abstract":"A novel phase shifting interferometry method based on the variation of the electric field under the scheme of a three beams interferometer is proposed. One beam contains the object under study, that makes this beam the probe beam; the other two will be consider as the reference beams with a phase difference of π 2 . Due to this, one of the three resulting interference terms will be cancelled and the two remaining will be in quadrature. Applying some trigonometric identities, we show that the resulting interference pattern could become modeled by the interfering of two beams with an additional phase term; we obtain that the tangent function of the additional phase depends on the division of the amplitude of the third field divided by the amplitude of the first, and it is possible to group the sum of the squares of these fields in a square amplitude. To recover the phase by using the phase shifting interferometry techniques it is necessary to keep constant the visibility of the interference pattern, at first sight we can think that this is not possible because the variations of the field amplitude affect the visibility of the patterns. However this problem is solved if the values of the amplitude corresponding to the fields one and three are seen as an ordered pair contained over an arc segment at the first quadrant. We justify the viability of this method by a theoretical analysis and a numerical simulation of the interference of three beams under the conditions mentioned above.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"8287 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130094604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fringe pattern simulation with an adaptive pendulum 用自适应摆模拟条纹图案
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.913354
W. F. Guerrero-Sánchez, R. Juarez-Salazar, C. Meneses-Fabian, C. Robledo-Sánchez
{"title":"Fringe pattern simulation with an adaptive pendulum","authors":"W. F. Guerrero-Sánchez, R. Juarez-Salazar, C. Meneses-Fabian, C. Robledo-Sánchez","doi":"10.1117/12.913354","DOIUrl":"https://doi.org/10.1117/12.913354","url":null,"abstract":"In this work we propose the simulation of a fringe pattern in analogy with a oscilating pendulum with adaptive parameters. This technique will be used in future to recovery the phase of interferograms by mean a dynamical model. We reproduce a reference fringe pattern solving the dynamical model of a pendulum with adaptive length parameter, by computer simulation. We obtained good preliminary results with this dynamical system. The differential equation (DE) was simulated with Simulink Toolbox of MATLAB. We show our results.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132287476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Micro-displacement sensor using a Mach-Zehnder interferometer with long-period gratings 微位移传感器采用长周期光栅马赫-曾德尔干涉仪
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.913337
K. Salas-Alcántara, I. Torres-Gómez, D. Monzón-Hernández, A. Martínez-Ríos, Luis Armando García-de-la-Rosa
{"title":"Micro-displacement sensor using a Mach-Zehnder interferometer with long-period gratings","authors":"K. Salas-Alcántara, I. Torres-Gómez, D. Monzón-Hernández, A. Martínez-Ríos, Luis Armando García-de-la-Rosa","doi":"10.1117/12.913337","DOIUrl":"https://doi.org/10.1117/12.913337","url":null,"abstract":"We present the fabrication and characterization of a micro-displacement sensor using Mach-Zehnder interferometer in conventional optical fiber SMF28-e. The Mach-Zehnder interferometer uses a configuration of two long-period gratings (LPG) in series mechanically induced. The Mach-Zehnder interferometers were made to operate in the region of 1300 nm. As a result the interferometers were obtained with transmission bands with a bandwidth of 2 nm, extinction ratio of 12 dB and insertion loss of 2 to 3 dB. The characterization of the interferometer was found to be measured displacements up to 500 μm with a resolution of 7 microns, which envisions potential applications of micro-displacement sensor in the measurement of micro-deformations.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127453238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rigorous diffraction of Hermite-Gaussian beams by a double slit: TM polarization case 厄米高斯光束的双缝严格衍射:TM偏振情况
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.912506
G. Enriquez-Leon, M. Martinez-Flores, G. Torres-Morales, J. Sumaya-Martínez
{"title":"Rigorous diffraction of Hermite-Gaussian beams by a double slit: TM polarization case","authors":"G. Enriquez-Leon, M. Martinez-Flores, G. Torres-Morales, J. Sumaya-Martínez","doi":"10.1117/12.912506","DOIUrl":"https://doi.org/10.1117/12.912506","url":null,"abstract":"A rigorous numerical analysis of the diffraction of finite-size Hermite-Gaussian beams by two slits is presented. The case of TM (Transversal Magnetic) polarization and oblique incidence is considered. We assume the double slit is ruled onto a metallic screen of non-zero thickness h, width ℓ and separation d. Far-field spectra and transmission coefficients are analyzed as a function of several opto-geometrical parameters, i.e. the wavelength λ, slit width ℓ and separation d. Particular emphasis is put on the description of the energy diffracted along the incident direction Ei because of its applications on optical-metrology. Finally, the validity of a well known scalar property Ei=2τ/λis studied within the vectorial regime.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115807792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Enhanced transmission through metallic subwavelength slits 增强通过金属亚波长狭缝的传输
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.912917
G. Camacho-González, O. Olmos-Lopez, J. Sumaya-Martínez, M. Mayorga-Rojas
{"title":"Enhanced transmission through metallic subwavelength slits","authors":"G. Camacho-González, O. Olmos-Lopez, J. Sumaya-Martínez, M. Mayorga-Rojas","doi":"10.1117/12.912917","DOIUrl":"https://doi.org/10.1117/12.912917","url":null,"abstract":"We present FDTD calculations for transmission of electromagnetic waves through periodic arrays of slits in a metallic screen. The results show resonant, frequency dependent, transmittance peaks for subwavelength widths of the slits which can be up to a factor of ten with respect to those out of resonance. Although our conclusions agree with previous work by Lezec and Thio as regards both the magnitude of the enhancement and the lack of contribution of surface plasmon polaritons of the metal surface to this effect, we derive an interpretation from a theory that deals with emerging beam-Rayleigh anomalies of the grating, and with Fabry- Perot resonances of the perforated screen considered as an effective medium.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124023681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A genetic algorithm applied in the three-dimensional reconstruction of digitalized objects 遗传算法在数字化物体三维重建中的应用
Symposium on Optics in Industry Pub Date : 2011-09-24 DOI: 10.1117/12.913013
D. Torres, F. Cuevas
{"title":"A genetic algorithm applied in the three-dimensional reconstruction of digitalized objects","authors":"D. Torres, F. Cuevas","doi":"10.1117/12.913013","DOIUrl":"https://doi.org/10.1117/12.913013","url":null,"abstract":"We present a method to fully reconstruct real objects acquired by any means of digitalization and where many scans from different views of point have been made. The current problem is modeled as an optimization problem and solved with a Genetic Algorithm (GA) using a custom fitness function based in regular squared distance minimization (SDM). We present examples to show the applicability of our method to reconstruct full objects as well as a possible application in reverse engineering.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128266635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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