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WEHNELT [7 records]
Record 1 - internal organization data 2024-03-20
Record 1, English
Record 1, Subject field(s)
- Medical and Surgical Equipment
- Optical Instruments
Record 1, Main entry term, English
- Wehnelt cylinder
1, record 1, English, Wehnelt%20cylinder
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record 1, French
Record 1, Domaine(s)
- Équipement médico-chirurgical
- Instruments d'optique
Record 1, Main entry term, French
- cylindre de Wehnelt
1, record 1, French, cylindre%20de%20Wehnelt
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Électrode cylindrique réglant le flux d’électrons dans les tubes cathodiques. 1, record 1, French, - cylindre%20de%20Wehnelt
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Equipo médico y quirúrgico
- Instrumentos ópticos
Record 1, Main entry term, Spanish
- cilindro de Wehnelt
1, record 1, Spanish, cilindro%20de%20Wehnelt
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2012-08-29
Record 2, English
Record 2, Subject field(s)
- Electric Power Distribution
Record 2, Main entry term, English
- focus anode 1, record 2, English, focus%20anode
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
The electric field produced by focus anode a causes the electron beam to converge to a locus ... 1, record 2, English, - focus%20anode
Record 2, French
Record 2, Domaine(s)
- Distribution électrique
Record 2, Main entry term, French
- anode de concentration
1, record 2, French, anode%20de%20concentration
feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
À la sortie du wehnelt, le faisceau rencontre l'anode de concentration A1 qui lui imprime une certaine accélération et limite sa section par un ou plusieurs diaphragmes. 2, record 2, French, - anode%20de%20concentration
Record number: 2, Textual support number: 2 OBS
Tubes cathodiques. 2, record 2, French, - anode%20de%20concentration
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2011-08-31
Record 3, English
Record 3, Subject field(s)
- Vacuum Tubes (Electronics)
- Amplifiers (Electronics)
Record 3, Main entry term, English
- travelling-wave tube
1, record 3, English, travelling%2Dwave%20tube
correct
Record 3, Abbreviations, English
- TWT 2, record 3, English, TWT
correct
Record 3, Synonyms, English
- travelling wave tube 2, record 3, English, travelling%20wave%20tube
correct
- TWT 2, record 3, English, TWT
correct
- TWT 2, record 3, English, TWT
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A linear-beam forward-wave in which a stream of electrons interacts in synchronism with a guided electromagnetic wave so that there is a net transfer of energy from the stream to the wave. 1, record 3, English, - travelling%2Dwave%20tube
Record 3, Key term(s)
- traveling-wave tube
Record 3, French
Record 3, Domaine(s)
- Tubes et lampes (Électronique)
- Amplificateurs (Électronique)
Record 3, Main entry term, French
- tube à onde progressive
1, record 3, French, tube%20%C3%A0%20onde%20progressive
correct, masculine noun
Record 3, Abbreviations, French
- TOP 2, record 3, French, TOP
correct, masculine noun
- T.O.P. 1, record 3, French, T%2EO%2EP%2E
correct, masculine noun
Record 3, Synonyms, French
- tube à ondes progressives 3, record 3, French, tube%20%C3%A0%20ondes%20progressives
correct, masculine noun
- TOP 4, record 3, French, TOP
correct, masculine noun
- TOP 4, record 3, French, TOP
- lampe à ondes progressives 5, record 3, French, lampe%20%C3%A0%20ondes%20progressives
feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Un tube à ondes progressives(TOP) dont la fonction est d’amplifier des signaux de très hautes fréquences(12 GHz), comporte trois parties : d’abord le canon à électrons où les électrons sont émis par une cathode, focalisés par des électrodes(Wehnelt), l'anode permettant de régler le courant du faisceau d’électrons : ensuite la structure à retard est constituée d’une hélice en cuivre à pas variable, le long de laquelle se propage une onde électromagnétique. La vitesse(de phase) de cette onde est donc un peu moins rapide que celle du faisceau d’électrons qui se propage en ligne droite au milieu de l'hélice. Et le champ électrique de cette onde tend à freiner les électrons du faisceau qui cèdent alors de l'énergie à l'onde électromagnétique : il y a amplification. Le collecteur, enfin, est chargé de recueillir les électrons qui sortent de l'hélice et récupère une partie de leur énergie initiale puisqu'ils n’ en ont cédé que 10 à 20 pour cent à l'onde RF(radiofréquence). 6, record 3, French, - tube%20%C3%A0%20onde%20progressive
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Tubos de vacío (Electrónica)
- Amplificadores (Electrónica)
Record 3, Main entry term, Spanish
- tubo de onda progresiva
1, record 3, Spanish, tubo%20de%20onda%20progresiva
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 CONT
El tubo de onda progresiva [...] es la otra variante de amplificador que se utiliza en las estaciones para comunicaciones satelitales. 1, record 3, Spanish, - tubo%20de%20onda%20progresiva
Record 4 - internal organization data 1998-07-15
Record 4, English
Record 4, Subject field(s)
- Telecommunications
- Radar, Radio Guidance and Goniometry
Record 4, Main entry term, English
- radar receiver
1, record 4, English, radar%20receiver
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A high-sensitivity radio receiver that is designed to amplify and demodulate radar echo signals and feed them to a radarscope or other indicator. 2, record 4, English, - radar%20receiver
Record 4, French
Record 4, Domaine(s)
- Télécommunications
- Radar, radioguidage et radiogoniométrie
Record 4, Main entry term, French
- récepteur radar
1, record 4, French, r%C3%A9cepteur%20radar
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- récepteur de radar 2, record 4, French, r%C3%A9cepteur%20de%20radar
masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Récepteur superhétérodyne hyperfréquence à haute sensibilité et faible bruit traitant les signaux reçus par l'antenne d’un radar pour fournir la tension variable appliquée au wehnelt du tube cathodique de l'indicateur. 2, record 4, French, - r%C3%A9cepteur%20radar
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1985-02-01
Record 5, English
Record 5, Subject field(s)
- Information Processing (Informatics)
- Internet and Telematics
Record 5, Main entry term, English
- random-position 1, record 5, English, random%2Dposition
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
The random-position technique simultaneously moves the CRT beam in an arbitrary X and Y direction. The beam is moved directly to the point at which the graphics element is to be displayed ... and then the beam is deflected to trace the desired graphics element - with the beam on. (Roland Nobert, Operations) 1, record 5, English, - random%2Dposition
Record 5, French
Record 5, Domaine(s)
- Traitement de l'information (Informatique)
- Internet et télématique
Record 5, Main entry term, French
- positionnement successif 1, record 5, French, positionnement%20successif
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Le mode de balayage [cavalier est] le plus couramment utilisé en visualisation graphique. Le faisceau est asservi en X et Y dans un système cartésien de coordonnées rectangulaires et décrit une figure par positionnements successifs, combinés avec la commande d’allumage agissant sue le Wehnelt. 1, record 5, French, - positionnement%20successif
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 1977-03-24
Record 6, English
Record 6, Subject field(s)
- Amplifiers (Electronics)
Record 6, Main entry term, English
- Z-axis amplifier
1, record 6, English, Z%2Daxis%20amplifier
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- intensity amplifier 1, record 6, English, intensity%20amplifier
correct
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
an amplifier for signals controlling the intensity of the spot. 1, record 6, English, - Z%2Daxis%20amplifier
Record 6, French
Record 6, Domaine(s)
- Amplificateurs (Électronique)
Record 6, Main entry term, French
- amplificateur Z
1, record 6, French, amplificateur%20Z
correct
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Il existe quelquefois(...) un amplificateur Z connecté au wehnelt du tube cathodique pour permettre de moduler la brillance de la trace par une tension très faible. 1, record 6, French, - amplificateur%20Z
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 1977-03-08
Record 7, English
Record 7, Subject field(s)
- Vacuum Tubes (Electronics)
Record 7, Main entry term, English
- Wehnelt electrode
1, record 7, English, Wehnelt%20electrode
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
A (...) cylinder surrounds the cathode, with an aperture in the end surface through which the electrons can pass. This (...) cylinder is the grid (...) of the c.r.t., sometimes known as the Wehnelt electrode. 1, record 7, English, - Wehnelt%20electrode
Record 7, Key term(s)
- wehnelt
Record 7, French
Record 7, Domaine(s)
- Tubes et lampes (Électronique)
Record 7, Main entry term, French
- wehnelt
1, record 7, French, wehnelt
correct
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
La cathode est entourée par un cylindre fermé comportant un trou d’environ 1 mm de diamètre en face de la partie émissive. Cette électrode joue le rôle de la grille de commande, c'est le wehnelt. 1, record 7, French, - wehnelt
Record 7, Spanish
Record 7, Textual support, Spanish
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