Now showing items 1-20 of 46

    • 3D Aircraft Measurements 

      De La Hoz Hernandez, Clara (Universitat Politècnica de Catalunya, 2015-09)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Institut Supérieur de l'Aéronautique et de l'Espace / ATR Aircraft
    • A semi-automation procedure for dial comparators calibration 

      Garcia Benadí, Albert; Shariat Panahi, Shahram; Río Fernandez, Joaquín del; Manuel Lázaro, Antonio (2009)
      Conference report
      Restricted access - publisher's policy
      In this article an improvement of a calibration process of measurement equipment in the field of dimensional metrology is presented. Devices under calibration process are dial comparators. The semi-automated process is ...
    • Active illumination focus variation 

      Bermúdez, Carlos; Martínez Marín, Pol; Cadevall Artigues, Cristina; Artigas Pursals, Roger (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
      Conference report
      Restricted access - publisher's policy
      Focus Variation (FV) has been successfully employed for the three-dimensional measurement of rough surfaces. The technique relies on scanning the sample under inspection across the depth of focus of a high numerical aperture ...
    • Adaptive self-mixing interferometry for metrology applications 

      Atashkhooei, Reza (Universitat Politècnica de Catalunya, 2013-11-04)
      Doctoral thesis
      Open Access
      Among the laser based techniques proposed for metrology applications, classical interferometers offer the highest precision measurements. However, the cost of some of the elements involved and the number of optical components ...
    • Alineamiento del sincrotrón ALBA 

      Villalobos Gasca, Albert (Universitat Politècnica de Catalunya, 2008-06)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Este texto pretende explicar al lector de manera básica el funcionamiento de un acelerador de partículas, en concreto el sincrotrón ALBA, podremos observar algunos de sus componentes más destacados así como su funcionamiento. ...
    • Análisis y estudio del radar Ramet AD9 

      López Jiménez, José Manuel (Universitat Politècnica de Catalunya, 2009-07-08)
      Master thesis (pre-Bologna period)
      Open Access
      El proyecto está basado en un estudio completo y detallado del radar RAMET modelo AD9. Las autoridades de tráfico catalanas, a través del Servei Català del Trànsit, están introduciendo en nuestras carreteras este tipo ...
    • Application of matched digital filters to noisy fringe-patterns from complex wavefronts 

      Caum Aregay, Jesús; Arasa Marti, Jose; Royo Royo, Santiago; Ares Rodríguez, Miguel (Proc.SPIE Press, 2005-06-13)
      Article
      Open Access
    • Binocular open-view system to perform estimations of aberrations and scattering in the human eye 

      García Guerra, Carlos Enrique; Aldaba Arévalo, Mikel; Pujol Ramo, Jaume; Arjona Carbonell, Mª Montserrat (2015-11-10)
      Article
      Open Access
      We present a system that integrates a double-pass (DP) instrument and a Hartmann-Shack (HS) wavefront sensor to provide information not only on aberrations, but also on scattering occurring in the human eye. A binocular ...
    • Calibratges en metrologia 

      Surroca i Torrents, Jordi (Universitat Politècnica de Catalunya, 2007-06)
      Master thesis (pre-Bologna period)
      Open Access
      El plantejament bàsic del projecte és el de crear una eina útil i versàtil per tal d’agilitzar els treballs de calibratge. Un calibratge no deixa de ser una tasca manual que realitza un operari, per tant, es pretén crear ...
    • Complex light-assisted optical metrology techniques 

      Rosales Guzmán, Carmelo; Belmonte Molina, Aniceto; Pérez Torres, Juan (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2018)
      Conference report
      Restricted access - publisher's policy
      The on-demand tailoring of the properties of light, such as phase, polarization or spatial shape, has completely changed the landscape of photonic-based applications. In this way, complex light fields have become an ...
    • Confocal unrolled areal measurements of cylindrical surfaces 

      Matilla Sánchez, Aitor; Bermúdez Porras, Carlos; Mariné, Jordi; Martínez López, David; Cadevall Artigues, Cristina; Artigas Pursals, Roger (2017)
      Conference report
      Restricted access - publisher's policy
      Confocal microscopes are widely used for areal measurements thanks to its good height resolution and the capability to measure high local slopes. For the measurement of large areas while keeping few nm of system noise, it ...
    • Current Developments on Optical Feedback Interferometry as an All-Optical Sensor for Biomedical Applications 

      Perchoux, Julien; Quotb, Adam; Atashkhooei, Reza; Azcona Guerrero, Francisco Javier; Ramírez Miquet, Evelio E.; Bernal, Olivier; Jha, Ajit; Luna Arriaga, Antonio; Yáñez Alvarado, Carlos René; Caum Aregay, Jesús; Bosch, Thierry; Royo Royo, Santiago (2016-05-13)
      Article
      Open Access
      Optical feedback interferometry (OFI) sensors are experiencing a consistent increase in their applications to biosensing due to their contactless nature, low cost and compactness, features that fit very well with current ...
    • Design of adaptative digital filters for phase extraction in complex fringe patterns obtained using the Ronchi test 

      Caum Aregay, Jesús; Arasa Marti, Jose; Royo Royo, Santiago; Ares Rodríguez, Miguel (2012-02-15)
      Article
      Open Access
    • Development of confocal-based techniques for shape measurements on structured surfaces containing dissimilar materials 

      Cadevall Artigues, Cristina; Artigas Pursals, Roger; Laguarta Bertran, Ferran (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2003)
      Conference report
      Restricted access - publisher's policy
      One of the applications, which is considered to be very difficult to carry out with most optical imaging profilers, is the shape and texture measurements of structured surfaces obtained from the superposition of various ...
    • Effect of atmospheric anisoplanatism on earth-to-satellite time transfer over laser communication links 

      Belmonte Molina, Aniceto; Taylor, Michael T.; Hollberg, Leo; Kahn, J. M. (2017-07-10)
      Article
      Open Access
      The need for an accurate time reference on orbiting platforms motivates study of time transfer via free-space optical communication links. The impact of atmospheric turbulence on earth-to-satellite optical time transfer ...
    • Étude de précision de 3 differents systèmes de mesure en 3 dimensions 

      Camp García, Marc (Universitat Politècnica de Catalunya / Université du Québec. École de Technologie Supérieure, 2011)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Le principal objectif de ce document est de faire une étude comparative de différents systèmes de mesure disponibles dans le marché actuellement. Dans la première partie du projet on va étudier la précision de chaque ...
    • Gestión de calibres para departamento de metrología 

      López Vega, Daniel (Universitat Politècnica de Catalunya, 2007-02)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement
      Covenantee:   SEAT S.A.
    • Impact of atmospheric anisoplanaticity on earth-to-satellite time transfer over laser communication links 

      Belmonte Molina, Aniceto; Taylor, Michael T.; Hollberg, Leo; Kahn, J. M. (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2017)
      Conference report
      Restricted access - publisher's policy
      The need for an accurate time and position reference on orbiting platforms motivates the study of time transfer over satellite optical communication links. The transfer of precise optical clock signals to space would benefit ...
    • Inter-comparison of commercial continuous radon monitors responses 

      Radulescu, Ileana; Calin, M. R.; Luca, A.; Röttger, Annette; Grossi, Claudia; Done, Laurentiu; Ioan, M. R. (2022-01)
      Article
      Open Access
      Indoor and outdoor (atmospheric) radon activity concentrations need to be measured as accurate as possible for radiation protection and for climate applications. Particularly radon concentrations below 100 Bq m -3, useful ...
    • L’experiment del cub. Primera part: càlcul de la constant d'avogadro 

      Garcia Benadí, Albert (Institut d'Estudis Catalans (IEC), 2021-04-26)
      Article
      Open Access