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The use of electromagnetic current meter in the discharge measurement by the velocity integration method
Jechová, Adéla ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This experimental bachelor thesis is focused on the use of electromagnetic current meter in the discharge measurement by the velocity integration method. The velocity integration method is based on the smooth displacement of the current velocity meter in the entire measurement profile. The method is described in detail in the theoretical part of the thesis, which deals with the velocity area method and its measurements. Furthermore, uncertainty of measurement that can be encountered during measurement are listed here. The results measured in the water laboratory are evaluated in the following chapters. At the end of the thesis, the conditions that are suitable to meet when determining the mean profile speed by an electromagnetic current meter using the velocity integration method are recommended.
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Metrological characteristics of current velocity meters using the electromagnetic principle of measurement
Vítů, Martin ; Brázda, Martin (referee) ; Žoužela, Michal (advisor)
This master’s thesis deals with the assesment of directional sensivity and accuracy of current stream velocity using electromagnetic induction meters in circumstances simulating the real measurement profiles condictions. The theoretical part of the thesis describes the issue of streamflow measurement in open channels and determination of the relevant measurement uncertainties. It also includes description of the hydraulic circuit and the subject current velocity meters. The experimental part of the thesis focuses on the effect of turbulence on the value and accuracy of measured velocity and directional sensivity of electromagnetic induction meters of current velocity. The results are compared with parameters given by manufacturers, research by other authors and with the metrological characteristics of hydrometric propellers, which are commonly used for streamflow measurement in open channels.
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The use of electromagnetic current meter in the discharge measurement by the velocity integration method
Jechová, Adéla ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This experimental bachelor thesis is focused on the use of electromagnetic current meter in the discharge measurement by the velocity integration method. The velocity integration method is based on the smooth displacement of the current velocity meter in the entire measurement profile. The method is described in detail in the theoretical part of the thesis, which deals with the velocity area method and its measurements. Furthermore, uncertainty of measurement that can be encountered during measurement are listed here. The results measured in the water laboratory are evaluated in the following chapters. At the end of the thesis, the conditions that are suitable to meet when determining the mean profile speed by an electromagnetic current meter using the velocity integration method are recommended.
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Metrological characteristics of current velocity meters using the electromagnetic principle of measurement
Vítů, Martin ; Brázda, Martin (referee) ; Žoužela, Michal (advisor)
This master’s thesis deals with the assesment of directional sensivity and accuracy of current stream velocity using electromagnetic induction meters in circumstances simulating the real measurement profiles condictions. The theoretical part of the thesis describes the issue of streamflow measurement in open channels and determination of the relevant measurement uncertainties. It also includes description of the hydraulic circuit and the subject current velocity meters. The experimental part of the thesis focuses on the effect of turbulence on the value and accuracy of measured velocity and directional sensivity of electromagnetic induction meters of current velocity. The results are compared with parameters given by manufacturers, research by other authors and with the metrological characteristics of hydrometric propellers, which are commonly used for streamflow measurement in open channels.
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