Relevant bibliographies by topics / Optická měření

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Academic literature on the topic 'Optická měření'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Dissertations / Theses on the topic "Optická měření"

1

Wintr, Aleš. "Měření parametrů optických čoček." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219103.

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This paper contains a basic overview and description of optical lenses. It introduces different types of optical lenses and shows how they influence the passing of light beams. It deals with the production of optical lenses and their practical use. It describes types of optical blemishes that exist in real optical systems. Particular attention is given to parameters of optical lenses and their measurement in practice. It includes a Matlab program to calculate parameters of optical lenses derived from the measurements.
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Ambrož, Jan. "Návrh, výstavba a měření optických přístupových sítí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218998.

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The work deals with the possibilities of realization of optical access networks. They are introduced to FTTx optical access, including their specifications and differences. The document was largely devoted to passive and active optical networks. These two different technological approaches are explained and compared. Are presented technical solutions of routes - traditional options for laying underground or into the air, but also as an alternative microtubing. Mentioned are also the active network technology. The work also included the issue of measurement of optical access networks. They are illuminated important transmission parameters and methods for their measurement. The whole work is directed to the full FTTH network design according to the standard GEPON. In designing the use of theoretical information contained in each chapter. It does the form of technical documentation in accordance with the procedures used in practice, contains drawings, specific technical solutions and a detailed budget price. The design was verified by attenuation of balance. Finally there are the results of simulations of the proposed network in OptiSystem7.
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3

Kopečný, Josef. "Optická metoda měření kontrakce izolované srdeční buňky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219250.

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In this master´s thesis we will firstly focused on the description of a cyte in terms of structure as well as in terms of electrical and chemical processes. We will examine a processes, which make a contraction and the processes on cyte membrane. We will also analyse image processing methods and methods for measuring the contraction. The block diagram will be designed and requirements for the measuring platform will be specified. The programme will be realized in LabWIEV programming language.
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4

Švrček, Martin. "Nové přístupy pro optická měření elektrické aktivity myokardu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-233536.

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This dissertation deals with new approaches in cardiac optical mapping. The principle of cardiac optical mapping as well as the current research in this field was described. The new measurement system was developed and its characteristics presented. The system design allows epicardial and endocardial mapping, employing new ratiometric techniques in 2D acquisition and simultaneous electrical and optical mapping. The measured characteristics of fluorescent dye di-4-ANEPPSS were presented. The relation between movement and consequent motion artifacts is well described. Several new approaches in signal processing were proposed, including new ratiometry technique and using image registration to suppress motion artifacts. The algorithm for elastic image registration of optical signals and innovative method for verification of registration process were presented. Application of all proposed approaches and its results are included and discussed.
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5

Flajšmanová, Jana. "Měření extinkčních spekter opticky zachycených plazmonických nanočástic." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232025.

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This thesis deals with the dark-field imaging and the optical spectroscopy of optically trapped plasmonic nanoparticles. The optical trapping and the characterization of a single particle or multiple nanoparticles as well are demonstrated. The number of the optically trapped particles can be estimated from the dark-field scattering intensity. Experiments show the presence of the interparticle coupling among trapped metallic nanoparticles which has not been observed in case of dielectric particles. The scattering spectra of the plasmonic nanoparticles were compared with theoretical models based on the Mie theory and the Discrete dipole approximation.
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6

Gajdoš, Jaroslav. "Metodika měření optických sítí FTTH." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218131.

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The main topic of this master thesis is a FTTH measurement methodology of optical networks and its specific features 9 compared with other measurement methodologies. Also, the use of the FTTH measurement methodology: an example of measurements of a passive network with splitter 1:8 and analysis of the results of these experimental measurements. The first part of the thesis concerns itself with the description of optical networks and characteristics and features of the FTTH networks. A detailed description of the passive optical networks is provided: e.g. the optical network unit ONU, the optical line termination OLT, and, most importantly, the passive optical splitter. The wavelength division multiplex 9 WDM 9 which is used in passive optical networks is also described in detail. The chapter on measurement methodologies focuses in detail and provides many examples of currently used measurement methodologies of these networks. The best results are currently achieved with the OTDR methodology. The second part of the thesis concentrates on the description of the measurement of a passive optical network with splitter 1:8 using the methods described in previous chapters. As conclusion, a detailed analysis, assessment of the results and their usefulness when put into practice is provided.
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7

Vitásek, Jan. "Měření rozložení optické intenzity ve vzdálené zóně." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217789.

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The topic of this master’s thesis is energy measurement of the optical intensity distribu-tion at the far field. Properties of the optical intensity and the optical power are described. In this thesis solution of wave equation is done. The plane wave, spherical wave and Gaussian beam are described. In this thesis, optical trace of laser beam from transmitter laser diode to receiver PIN photodiode is described. One of the solved problems is diffraction on the lens socket. The basic configuration for diffraction investigation on lens socket was created. There were transmitting laser diode, stop with circular apertures and PIN photodiode used in the experiment. In the other part, thesis deals with measuring and detection of the optical beam. Sorts of photodiodes and their characteristics were analysed.
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8

Slovák, Jiří. "Implementace algoritmu pro měření parametrů energetických materiálů v obvodu FPGA." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220352.

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In the text of the master´s thesis, it is at first briefly referred about Energetic Material Measurement topic in general. Emphasis is placed especially at the description of the Velocity of Detonation and short analysis of selected measurement method. The most significant part of the paper is dedicated to the design and description of the system that was created in ISE Design Suite environment using VHDL language. The development was performed with respect to oncoming integration into the board with FPGA and A/D converters. The operation of detection algorithm which was created based on the MATLAB model was verified in the final part of the thesis by simulation of processing of real optical probe signals.
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9

Černý, Michal. "Optimalizace a měření parametrů PON sítě FTTx." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218961.

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Práce rozebírá současný vývoj na poli pasivních optických sítí a jednotlivé generace přenosových standardů. Podrobněji se zabývá parametry ODN, metodami jejich měření a volbou potřebných měření v praxi. Hlavní část práce je zaměřena na měření pasivního WDM prvku, kde je provedena analýza vstupů a výstupů, měření vložného útlumu a přelechů podle ORL na provozních vlnových délkách.
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10

Kužela, Jan. "Návrh, realizace a měření pasivní optické sítě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-317033.

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The aim of this thesis is to formulate the design of optical access network in designated area. The design is focused on the physical network layer and it covers optical fibers, cable protectors and links, optical hubs, racks and active components. The thesis also docu- ments network architecture, the configuration of active components and provides results from monitoring of selected network segments. The thesis consists of the theoretical part and practical part. In the theoretical part, there is an introduction to optical networks, their configurations (FTTH, FTTB, FTTC, FTTN), relevant networking standards and technologies. The practical part of the thesis covers design proposal of a network located in Slavičín. The design reuses infrastructure and technologies of existing network. The proposed design follows FTTH architecture which has benefits of low maintenance cost and it also fulfills GPON standard.
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