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Diagnosis of electromagnetic origin vibrations in asynchronous motor
Koníček, Pavel ; Dostál, Lukáš (referee) ; Janda, Marcel (advisor)
The aim of this master´s thesis is to introduce methods of diagnostics of vibrations in electrical machines. Describe the various vibration sources located inside and outside of the electric machine. Description of the sources of vibration is then preferably dedicated to vibration of electromagnetic origin. There is a description of the construction of an asynchronous motor and the magnetic circuit, the theory of vibrations and their origin. Described are also vibration sensor enables measurement and mathematical tools for their evaluation. In this work also practical vibration measurements on an asynchronous motor, data processing, their subsequent analysis and computer simulation of electromagnetic vibration origin. The conclusion of this work is devoted to the evaluation of the data obtained.
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Processing of signals from fiber optic sensors
Sikora, Vojtěch ; Urban, František (referee) ; Čučka, Milan (advisor)
First two chapters of this paper deals with the division of optical fiber sensors, digital signal processing and includes price comparison of four experimental sensors. In chapter three analysis, description and evaluation of measurment has been demonstrated on Mach - Zehnder interferometer. Last chapter is about application for signal analysis from vibration sensors. Description contains snippets from source code and graphical user interface. This paper includes three fields - fiber optics, digital signal processing and creation of application - and thanks to them it provides solid basis for study of optic fiber sensors.
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Mass Flowmeter
Koutný, Petr ; Šedivá, Soňa (referee) ; Beneš, Petr (advisor)
This work deals with mass flowmeter working on the Coriolis force. The first part contains explanations of Coriolis flowmeter, a short history, description of important parts and basic applications. The second part consists of a patent research, focused on solutions the most important elements of Coriolis flowmeter. These are: shape of the measuring tube, driver members, vibrations sensors and method for evaluating the measured signal with error compensation. Each featured patent contains short description, eventually its advantages and disadvantages The last part of this work is focused on practical Coriolis flowmeter verification in laboratory conditions.
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Measurement and analysis of electrical machine vibration
Kováč, Martin ; Janda, Marcel (referee) ; Vítek, Ondřej (advisor)
Subject of this bachelor thesis are vibrations which are source of information for diagnostic equipment analysis. Diagnostic equipment is source of vibrations from the point early detection of raising problem which could markedly affect failure-free result of diagnostic facilities. The thesis especially deals with vibration sensors and their fundamental principles which are used for electric rotaring machines vibration tests as well as vibrodiagnostic signal analysis by reason of finding failure on diagnostic facilities.
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Processing of signals from fiber optic sensors
Sikora, Vojtěch ; Urban, František (referee) ; Čučka, Milan (advisor)
First two chapters of this paper deals with the division of optical fiber sensors, digital signal processing and includes price comparison of four experimental sensors. In chapter three analysis, description and evaluation of measurment has been demonstrated on Mach - Zehnder interferometer. Last chapter is about application for signal analysis from vibration sensors. Description contains snippets from source code and graphical user interface. This paper includes three fields - fiber optics, digital signal processing and creation of application - and thanks to them it provides solid basis for study of optic fiber sensors.
|
|
|
Mass Flowmeter
Koutný, Petr ; Šedivá, Soňa (referee) ; Beneš, Petr (advisor)
This work deals with mass flowmeter working on the Coriolis force. The first part contains explanations of Coriolis flowmeter, a short history, description of important parts and basic applications. The second part consists of a patent research, focused on solutions the most important elements of Coriolis flowmeter. These are: shape of the measuring tube, driver members, vibrations sensors and method for evaluating the measured signal with error compensation. Each featured patent contains short description, eventually its advantages and disadvantages The last part of this work is focused on practical Coriolis flowmeter verification in laboratory conditions.
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Measurement and analysis of electrical machine vibration
Kováč, Martin ; Janda, Marcel (referee) ; Vítek, Ondřej (advisor)
Subject of this bachelor thesis are vibrations which are source of information for diagnostic equipment analysis. Diagnostic equipment is source of vibrations from the point early detection of raising problem which could markedly affect failure-free result of diagnostic facilities. The thesis especially deals with vibration sensors and their fundamental principles which are used for electric rotaring machines vibration tests as well as vibrodiagnostic signal analysis by reason of finding failure on diagnostic facilities.
|
|
|
Diagnosis of electromagnetic origin vibrations in asynchronous motor
Koníček, Pavel ; Dostál, Lukáš (referee) ; Janda, Marcel (advisor)
The aim of this master´s thesis is to introduce methods of diagnostics of vibrations in electrical machines. Describe the various vibration sources located inside and outside of the electric machine. Description of the sources of vibration is then preferably dedicated to vibration of electromagnetic origin. There is a description of the construction of an asynchronous motor and the magnetic circuit, the theory of vibrations and their origin. Described are also vibration sensor enables measurement and mathematical tools for their evaluation. In this work also practical vibration measurements on an asynchronous motor, data processing, their subsequent analysis and computer simulation of electromagnetic vibration origin. The conclusion of this work is devoted to the evaluation of the data obtained.
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