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UV-Vis absorption spectroscopy and chemometrics to discriminate between the two basic categories and types of tequila 紫外-可见吸收光谱和化学计量学来区分龙舌兰酒的两种基本类别和类型
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742570
O. Barbosa Garcia, G. Ramos Ortiz, J. P. Pichardo Molina, J. Maldonado, M. A. Meneses Nava, J. Landgrave
{"title":"UV-Vis absorption spectroscopy and chemometrics to discriminate between the two basic categories and types of tequila","authors":"O. Barbosa Garcia, G. Ramos Ortiz, J. P. Pichardo Molina, J. Maldonado, M. A. Meneses Nava, J. Landgrave","doi":"10.1117/12.742570","DOIUrl":"https://doi.org/10.1117/12.742570","url":null,"abstract":"An alternative method to chromatography is reported to discriminate among white and aging tequilas. In a previous work we had reported a similar method to discriminate between 100% blue agave and mixed tequilas. A data base of 145 tequilas was created where well known tequila brands and tequilas in bulk were included. The bottled tequilas were purchased at various Mexican liquor stores to ensure that different batches of each brand were included in the data base. The method that we propose to discriminate tequilas may also be used for quality control in distilleries and, with the help of the data base, to identify counterfeit tequilas.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"6422 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130575829","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
Fourier transform method and temporal phase in order to measure frequency, amplitude, and surface profile of a low-frequency vibrating cantilever 傅立叶变换方法和时间相位，以测量频率，振幅，和表面轮廓的低频振动悬臂
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742371
C. Meneses-Fabian, R. Rodríguez-Vera, J. Rayas, F. Mendoza-Santoyo, G. Rodríguez-Zurita
{"title":"Fourier transform method and temporal phase in order to measure frequency, amplitude, and surface profile of a low-frequency vibrating cantilever","authors":"C. Meneses-Fabian, R. Rodríguez-Vera, J. Rayas, F. Mendoza-Santoyo, G. Rodríguez-Zurita","doi":"10.1117/12.742371","DOIUrl":"https://doi.org/10.1117/12.742371","url":null,"abstract":"A novel method of phase differences extraction is applied in order to study vibrations on a homogenous cantilever. It is achieved considering fringe patterns with carrier frequency and slow varying respect to the time. The technique is based on the Fourier-transform method and by the quotient of the two adjacent frames of the patterns. Fringe pattern is obtained by fringe projection on a fixed end homogenous cantilever, undergoing harmonic vibration. With this technique, we can obtain profiles of different vibrating modes of the cantilever for frequencies less than that of the camera frame rate (33.3 ms). In this communication theoretical analysis and experimental profile modes are shown.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122961305","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
Reliability analysis of radio over fiber networks 光纤网络无线电可靠性分析
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742321
G. Castañón, O. Tonguz
{"title":"Reliability analysis of radio over fiber networks","authors":"G. Castañón, O. Tonguz","doi":"10.1117/12.742321","DOIUrl":"https://doi.org/10.1117/12.742321","url":null,"abstract":"We present results on the usefulness of multilevel networks from the viewpoint of Radio over Fiber networks. We show results of several topology options as star, ring, multi-level ring, multi-level star, hybrid multi-level ring/star and hybrid multi-level star/ring. We present comparative results of the topologies in terms of fiber distance, and reliability of the networks.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"6422 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129514506","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
Construction of a table of coordinates with optic sensors as didactic prototype 以光学传感器为教学原型的座标表的构造
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742337
Jesús Israel Hidalgo Arredondo, Marco Antonio Moreno Barrón, M. A. Sustaita, Sergio Enrique Hernández Corpus, Patricia Espinosa Padilla, Miguel Esparza Aranda
{"title":"Construction of a table of coordinates with optic sensors as didactic prototype","authors":"Jesús Israel Hidalgo Arredondo, Marco Antonio Moreno Barrón, M. A. Sustaita, Sergio Enrique Hernández Corpus, Patricia Espinosa Padilla, Miguel Esparza Aranda","doi":"10.1117/12.742337","DOIUrl":"https://doi.org/10.1117/12.742337","url":null,"abstract":"In this work it is presented the case peculiar of the design and the construction of a table of coordinates using optic sensors as way of control. This prototype arises like an educational strategy, through which is sought that the students of the first years of the careers of Engineering in the Polytechnic University of San Luis Potosi feels incorporate to a concrete project in which they integrate the acquired knowledge to the beginning of its professional formation.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126381115","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
Photon electro-absorption modulation for broadband systems 宽带系统的光子电吸收调制
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742375
M. Félix, D. Salazar
{"title":"Photon electro-absorption modulation for broadband systems","authors":"M. Félix, D. Salazar","doi":"10.1117/12.742375","DOIUrl":"https://doi.org/10.1117/12.742375","url":null,"abstract":"In this work, the photon electro-absorption modulation of laser sources used in broadband systems is presented. We begin explaining the optical pulse broadening phenomenon of light pulses that propagate through an optical fiber, which represents a limiting factor for bandwidth expansion on currently installed optical fiber networks. The photon electro-absorption external modulation for light sources is explained further, along with the physical mechanism inherent to this modulation that minimizes the optical pulse broadening. We conclude mentioning the main advantages of the implementation of this type of modulation in broadband systems.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123739697","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
Focal shift in vector Mathieu-Gauss beams 矢量马修高斯光束的焦移
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742368
Raul I. Hernández-Aranda, J. C. Gutiérrez Vega
{"title":"Focal shift in vector Mathieu-Gauss beams","authors":"Raul I. Hernández-Aranda, J. C. Gutiérrez Vega","doi":"10.1117/12.742368","DOIUrl":"https://doi.org/10.1117/12.742368","url":null,"abstract":"We study the three dimensional distributioin of vector Mathieu-Gauss (vMG) beams near the focus of a non-aperturing thin lens. These beams constitute a family of solutions to the vectorial wave equation in the paraxial approximation. We adopt an energy criterion for defining the width of the beam as well as the focal plane. It is observed in our analysis that the focal plane does not coincide with the geometric focus, but it is slightly shifted towards the lens. The dependence of the focal shift on the different parameters of the vMG beams is discussed for beams with different polarizations.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131407976","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
Attainment of the absorption spectra of polyacrylonitrile based on the AM1 semiempirical Hartree-Fock model 基于AM1半经验Hartree-Fock模型的聚丙烯腈吸收光谱的获得
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742351
I. Rosales-Candelas, J. J. Soto-Bernal, Rosario González Mota, J. Vega-Durán, A. Bonilla-Petriciolet
{"title":"Attainment of the absorption spectra of polyacrylonitrile based on the AM1 semiempirical Hartree-Fock model","authors":"I. Rosales-Candelas, J. J. Soto-Bernal, Rosario González Mota, J. Vega-Durán, A. Bonilla-Petriciolet","doi":"10.1117/12.742351","DOIUrl":"https://doi.org/10.1117/12.742351","url":null,"abstract":"This work carries out a simulation of the absorption spectra on the IR of an untinted textile fiber manufactured with polyacrylonitrile (PAN), obtained by calculating the Molecular Orbitals (MOs) and their associated energies based on the semiempirical (AM1) Hartree-Fock (HF) model and compared with the experimental results obtained from a PAN textile fiber with blue pigment by means of an IR FTIR Avatar Nicolete spectrophotometer.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"377 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134322998","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: 1
3D reconstruction of surface by means of modified temporal unwrapping 采用改良的时间解包裹法重建三维表面
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742575
J. Garzon, J. Galeano, C. López, D. Duque
{"title":"3D reconstruction of surface by means of modified temporal unwrapping","authors":"J. Garzon, J. Galeano, C. López, D. Duque","doi":"10.1117/12.742575","DOIUrl":"https://doi.org/10.1117/12.742575","url":null,"abstract":"The reconstruction of the object surface with inherently discontinuous regions is usually a difficult problem by using standard phase unwrapping technique i.e. the spatial unwrapping. To recover the range data of such a surface, Huntley and Saldner recently proposed a temporal phase unwrapping procedure (TPUP) and Peng X. et al. based on their work proposed an enhanced recursive scheme for the TPUP. However the phase jumps no necessarily they correspond to multiples of 2pi exactly. Due to this, an enhanced scheme for temporal unwrapping in order to increase its efficiency is introduced. Additionally, we present some results obtained by mean of temporal unwrapping and spatial unwrapping, in order to compare them and to demonstrate the effectiveness of the temporal unwrapping.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121635754","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
Optical detection of the corrosion of stainless steel 304L exposed to lithium bromide aqueous solution at 70°C 光学检测304L不锈钢暴露于70℃溴化锂水溶液中的腐蚀情况
Symposium on Optics in Industry Pub Date : 2007-05-16 DOI: 10.1117/12.742344
J. Castrellón-Uribe, A. Trujillo-Estrada, C. Cuevas-Arteaga
{"title":"Optical detection of the corrosion of stainless steel 304L exposed to lithium bromide aqueous solution at 70°C","authors":"J. Castrellón-Uribe, A. Trujillo-Estrada, C. Cuevas-Arteaga","doi":"10.1117/12.742344","DOIUrl":"https://doi.org/10.1117/12.742344","url":null,"abstract":"We report a new method based on the ratio of the optical transmittance to monitoring processes of corrosion in stainless steel 304L immersed in a aqueous solution of lithium bromide at 50% wt, at 70°C. The change of the optical transmittance that is measured in the solution contaminated, is related to the physical degradation of the samples of stainless steel. We determine that the optic spectral-interval with more sensitivity to the corrosion products-accumulation, dissolved in the lithium bromide solution is of [450 nm - 750 nm]. A laser at 632 nm is utilized to detect the corrosion oxides-accumulation dissolved in the lithium bromide solution for 20 days. The slope of the change ratio of the optical power of transmittance is of 31X10-3/hour for 480 hours of exposition. Finally, the experimental results that we have presented, show that this optical technique represents an alternative in the detection of the corrosion without establishing physical contact with the sample.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129703170","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
Design of a zonal plate PDLC display 分区板式PDLC显示器的设计
Symposium on Optics in Industry Pub Date : 2007-05-15 DOI: 10.1117/12.742287
M. Pérez-Cortés, G. H. Maury-Cuna, M. Ortiz-Gutiérrez, J. Becerra-Macías
{"title":"Design of a zonal plate PDLC display","authors":"M. Pérez-Cortés, G. H. Maury-Cuna, M. Ortiz-Gutiérrez, J. Becerra-Macías","doi":"10.1117/12.742287","DOIUrl":"https://doi.org/10.1117/12.742287","url":null,"abstract":"In this work we present our studies of the optical properties of electrically switched Fresnel Zonal Plate using polymerdispersed liquid crystal (PDLC) materials. Our design is interpreted by using a theoretical approach to light scattering in PDLC films that relates optical transmittance and the order parameters, characterizing both the orientational structures inside bipolar droplets and orientational distribution of the droplets. The theory relies on the Rayleigh-Gans approximation and uses the Percus-Yevick approximation to take into account the effects due to droplet positional correlations.","PeriodicalId":359625,"journal":{"name":"Symposium on Optics in Industry","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116523786","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: 3
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