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Implementation of methods for measurement of rotational speed using cRIO platform
Fábry, Tomáš ; Uher, Miroslav (referee) ; Havlíková, Marie (advisor)
This diploma thesis implements methods for a measurement of rotational speed. It is implemented on the Compact RIO platform from National Instruments. Corresponding SW is implemented using the graphical programming language G in LabView environment. Developed system uses two different sensors – incremental encoder and tacho sensor for measurements of rotational speed. Thesis further analysis and implements a method for an encoder nonlinearity determination and for its on-line correction. For used methods, effects adding errors into the measurements are evaluated and quantified.
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Gas flow measurement
Kozák, Matěj ; Uher, Miroslav (referee) ; Beneš, Petr (advisor)
This thesis deals with the problem of designing vortex flow meter for a nominal range of 40 l.min-1. It describes the problems of vortex bodies and choice of methods for detection of vortices. The thesis includes solution of various problems in the design, which were published in scientific articles or patents. The following describes the design solution vortex flow meter for the specified range, which uses ultrasonic sensors to vortices detection. The proposed flow meter is calibrated with reference flow meter and compared with commercially produced vortex flow by the TST electronics and Burkert companies, which are designed for the specified ranges.
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Automation of climatic data acquisition
Sádovský, Petr ; Pikula, Stanislav (referee) ; Uher, Miroslav (advisor)
The goal of this work is to understand and identify the communication of the COMET S3120E datalogger. Subsequent design of a circuit solution that will allow two-way communication with the datalogger and the compilation of control software for the PC. The basis of the work is a theoretical and practical part. In the theoretical part of this document is a theoretical description of the functionality of the datalogger and its components. It also contains a description of the software used to achieve the goals. The las part deals with circuit design and software for PC.
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Measurement of the Magnetic Field
Šimberský, Michal ; Uher, Miroslav (referee) ; Fialka, Jiří (advisor)
This bachelor thesis deals with the measurement of the magnetic field and sensors, which can scan the magnetic field. In this work is explained the principle of Hall probes and three types of magnetic field sensors based on magnetoresistive principles namely AMR, GMR and TMR sensors. The thesis also deals with the generation of a homogeneous magnetic field with Helmholtz coils and design of such a coil.
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Design of a complex automated system for aquarists
Hedvíček, Michal ; Kunz, Jan (referee) ; Uher, Miroslav (advisor)
Thesis deals with the theoretical design of an automatic control system for the aquarium and following simulation software environment Proteus ISIS. Due to simulation program can verify the behavior of the microprocessor in the specified functions, the correctness of electrical connections and errors in source code. The second part is analysis of commercial systems, their characteristics and applications. Apart from available commercial systems, there is a basic overview of commonly used peripherals in the aquarium, including their comparison and evaluation. Furthermore, the implementation of a complex system is done and the procedures and methods needed to set up the system are described. This topic also deals with cooling and reliability tests.
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Granulometry of solid particles
Klimeš, Jiří ; Uher, Miroslav (referee) ; Beneš, Petr (advisor)
This bachelor thesis deals with a real-time granulometry measurement of granulate flow with acoustic emission sensors. Thesis is focused on coal granulometry measurement in thermal power stations. Parameters were introduced in time and frequency domain describing the granulometry of measured medium. The second part is focused on granulometry measurement experiment. Parameters were calculated for reference samples of material and they were evaluated. Third part of this thesis deals with finding correlations between process variables and selected parameters
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Measurement of the piezoelectric charge coefficient
Stehno, David ; Uher, Miroslav (referee) ; Fialka, Jiří (advisor)
The thesis aim was to study in theory the determination of piezoelectric coefficients, in particular piezoelectric coefficient of charge and to use different measurement methods to determine this factor. Also to further study the issue of determining the uncertainties and determine the measurement uncertainty. Measurements were conducted on cylinder-shaped samples, with different dimensions of individual samples. With type material PCM51 and PCM41. Piezoelectric coefficient measurements of charge was carried out using three methods: frequency, direct and quasi-static. The results achieved by all methods are compared at the end of this study and the measurements uncertainty are calculated and discussed for each method.
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Measuring system for pulse tests
Brýdl, Ondřej ; Uher, Miroslav (referee) ; Klusáček, Stanislav (advisor)
In this paper is discussed impulse testing at high voltage switchgear. It focused on practical methodics of measuring, theoretical knowledge and technical terms. Further is discussed a parts of switchgear UniGear ZS1, which is most often equipment to measure. It also dealing with own measurements, process of measuring and wiring diagram. As next step, is perform trial testing with Dr Strauss system and digital osciloskope. Based on trial test, it choose digital scope and create application in in the program LabVIEW12 and debugging workstation at technical laboratory in ABB.
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Electronic Load
Pivoňka, Václav ; Uher, Miroslav (referee) ; Beneš, Petr (advisor)
The purpose of this work is to develop an overview of application possibilities Agilent 6063B electronic load, measure the parameters of the electronic load and in a few cases, practically demonstrate its properties. For this purpose create LabVIEW sample application, which enable automation of measurement with electronic load.
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