About: Two-wavelength millimeter wave “unambiguous heterodyne interferometer

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper presents the results of upgrading and description a two wavelength 'unambiguous' microwave interferometer for line integrated electron density measurements at the 'COMPASS' tokamak.The probing signals in the frequency range of 131 and 133 GHz are generated by IMPATT diode oscillators.Double conversion heterodyne receivers are used for detection.Use of each oscillator is twofold:as a source for the probing signals and as a local oscillator for heterodyne detection.The plasma is probed with two separate waves of different wavelengths traveling along identical paths to meet each other.Each probing beam experiences a different phase shift φ1 and φ2 and the 'unambiguous' interferometer determines the difference φ1-φ2.The phase measurement is realized by using the 3 pieces of phase detectors based on pairs of phase/gain evaluation boards (AD8302). Application of the phase detectors provides information on the average plasma concentration in real time and restore the values of The paper presents the results of upgrading and description a two wavelength 'unambiguous' microwave interferometer for line integrated electron density measurements at the 'COMPASS' tokamak.The probing signals in the frequency range of 131 and 133 GHz are generated by IMPATT diode oscillators.Double conversion heterodyne receivers are used for detection.Use of each oscillator is twofold:as a source for the probing signals and as a local oscillator for heterodyne detection.The plasma is probed with two separate waves of different wavelengths traveling along identical paths to meet each other.Each probing beam experiences a different phase shift φ1 and φ2 and the 'unambiguous' interferometer determines the difference φ1-φ2.The phase measurement is realized by using the 3 pieces of phase detectors based on pairs of phase/gain evaluation boards (AD8302). Application of the phase detectors provides information on the average plasma concentration in real time and restore the values of (en)
Title	Two-wavelength millimeter wave “unambiguous heterodyne interferometer Two-wavelength millimeter wave “unambiguous heterodyne interferometer (en)
skos:prefLabel	Two-wavelength millimeter wave “unambiguous heterodyne interferometer Two-wavelength millimeter wave “unambiguous heterodyne interferometer (en)
skos:notation	RIV/61389021:_____/13:00423275!RIV14-AV0-61389021
http://linked.open...avai/predkladatel	Ústav fyziky plazmatu AVČR, v.v.i.
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Žáček, František Zajac, Jaromír Varavin, Mykyta
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky plazmatu AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	112203
http://linked.open...ai/riv/idVysledku	RIV/61389021:_____/13:00423275
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Detectors; Frequency measurement; Phase measurement; Plasma density; Plasma measurements; Tokamaks (en)
http://linked.open.../riv/klicoveSlovo	Detectors Frequency measurement Tokamaks Plasma density Plasma measurements Phase measurement
http://linked.open...ontrolniKodProRIV	[3C3EC618CC27]
http://linked.open...v/mistoKonaniAkce	Kharkov
http://linked.open...i/riv/mistoVydani	Kharkov
http://linked.open...i/riv/nazevZdroje	Proceedings - 2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves, MSMW 2013
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Shevchenko, V. Žáček, František Zajac, Jaromír Stumbra, M. Varavin, Mykyta Ermak, G. P. Fateev, A. S. Varavin, A. V. Vasilev, A. S.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-06-23 (xsd:date)
number of pages	3 (xsd:int)
http://bibframe.org/vocab/doi	10.1109/MSMW.2013.6622129
http://purl.org/ne...btex#hasPublisher	IEEE
https://schema.org/isbn	978-1-4799-1066-3

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