Isbn: 9783659115721 - design and implementation of thermal converter for ac volt measurement: characteristics, modeling and confirmation (6 resultados)

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Taschenbuch. Condición: Neu. Design and Implementation of Thermal Converter for AC Volt Measurement | Characteristics, Modeling and Confirmation | Rasha S. M. Ali | Taschenbuch | 204 S. | Englisch | 2012 | LAP LAMBERT Academic Publishing | EAN 9783659115721 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu. …

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -There are several designs and techniques for measuring the ac voltage. The ac-dc thermal transfer standards represent the common method for measuring the ac voltage accurately in terms of the dc voltage. The single junction thermal converter (SJTVC) is widely used as thermal transfer standard. It is to be noted that the SJTVC is mainly an electric resistor (heater) whose temperature is sensed by a standard thermocouple. This device has an input which is ac voltage and an output signal represented by the output voltage of the thermocouple. This thermal converter suffers from many drawbacks such as, it has low dc output voltage requiring accurate milli-voltmeter to measure it. This leads to high uncertainty and not very high accuracy of ac voltage measurement. These drawbacks are studied and treated in this thesis through fabricating of modified designs TVCs. The suggested solution depends on three different electrical connections of a number of new single junction vacuum thermocouples their heaters leads gathered in three groups; Series, Parallel and Series/Parallel arrangements. The modified TVCs are implemented entirely in National Institute for Standards (NIS), Egypt. 204 pp. Englisch.…

Condición: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Ali Rasha S.M.Rasha S. M. Ali born on 2nd of August, 1979. Graduated from Faculty of Engineering, Ain Shams University from 2001. I worked as researcher in the national institute for standards from 2003 in the electrical quantities .…

Taschenbuch. Condición: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - There are several designs and techniques for measuring the ac voltage. The ac-dc thermal transfer standards represent the common method for measuring the ac voltage accurately in terms of the dc voltage. The single junction thermal converter (SJTVC) is widely used as thermal transfer standard. It is to be noted that the SJTVC is mainly an electric resistor (heater) whose temperature is sensed by a standard thermocouple. This device has an input which is ac voltage and an output signal represented by the output voltage of the thermocouple. This thermal converter suffers from many drawbacks such as, it has low dc output voltage requiring accurate milli-voltmeter to measure it. This leads to high uncertainty and not very high accuracy of ac voltage measurement. These drawbacks are studied and treated in this thesis through fabricating of modified designs TVCs. The suggested solution depends on three different electrical connections of a number of new single junction vacuum thermocouples their heaters leads gathered in three groups; Series, Parallel and Series/Parallel arrangements. The modified TVCs are implemented entirely in National Institute for Standards (NIS), Egypt.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -There are several designs and techniques for measuring the ac voltage. The ac-dc thermal transfer standards represent the common method for measuring the ac voltage accurately in terms of the dc voltage. The single junction thermal converter (SJTVC) is widely used as thermal transfer standard. It is to be noted that the SJTVC is mainly an electric resistor (heater) whose temperature is sensed by a standard thermocouple. This device has an input which is ac voltage and an output signal represented by the output voltage of the thermocouple. This thermal converter suffers from many drawbacks such as, it has low dc output voltage requiring accurate milli-voltmeter to measure it. This leads to high uncertainty and not very high accuracy of ac voltage measurement. These drawbacks are studied and treated in this thesis through fabricating of modified designs TVCs. The suggested solution depends on three different electrical connections of a number of new single junction vacuum thermocouples their heaters leads gathered in three groups; Series, Parallel and Series/Parallel arrangements. The modified TVCs are implemented entirely in National Institute for Standards (NIS), Egypt.OmniScriptum SRL, Str. Armeneasca 28/1, office 1, 2012 Chisinau 204 pp. Englisch. …