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FREQUENCY CAVITY [10 records]
Record 1 - internal organization data 2024-02-29
Record 1, English
Record 1, Subject field(s)
- Lasers and Masers
Record 1, Main entry term, English
- Stokes frequency
1, record 1, English, Stokes%20frequency
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The line-center pump frequency is the pump frequency that shifts to a Stokes frequency on gain line-center. The two frequencies(pump and Stokes) do not tune at the same frequency because the Stokes frequency is determined by the cavity mode closest to gain line-center. 2, record 1, English, - Stokes%20frequency
Record 1, French
Record 1, Domaine(s)
- Masers et lasers
Record 1, Main entry term, French
- fréquence de Stokes
1, record 1, French, fr%C3%A9quence%20de%20Stokes
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2010-11-25
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
Record 2, Main entry term, English
- booster ring
1, record 2, English, booster%20ring
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
[Linear accelerator] booster ring. As the electrons circulate in the booster ring, they receive a boost in energy from approximately 250 MeV(Mega electron volt) to approximately 2. 9 to 6 GeV(Giga electron volts) — power equivalent to about 2 billion flashlight batteries — from microwaves generated in a Radio Frequency Cavity. 2, record 2, English, - booster%20ring
Record 2, French
Record 2, Domaine(s)
- Physique atomique
Record 2, Main entry term, French
- élanceur
1, record 2, French, %C3%A9lanceur
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Généralement, les particules sont produites dans un canon à électrons, accélérées par une série de klystrons dans un accélérateur linéaire puis éventuellement, comme pour les machines de la troisième génération, dans un petit anneau synchrotron appelé «booster» (ou élanceur), dont le but est de porter les particules à l’énergie nominale avant d’être injectées dans l’anneau de stockage proprement dit. 1, record 2, French, - %C3%A9lanceur
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2010-07-16
Record 3, English
Record 3, Subject field(s)
- Oscillators and Oscillating Circuits (Electronics)
Record 3, Main entry term, English
- free-running oscillator
1, record 3, English, free%2Drunning%20oscillator
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- free running oscillator 2, record 3, English, free%20running%20oscillator
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The frequency stability of a free-running oscillator is determined by the Q of the cavity and the temperature characteristics of the materials used in the design. 1, record 3, English, - free%2Drunning%20oscillator
Record 3, French
Record 3, Domaine(s)
- Circuits oscillants et oscillateurs (Électronique)
Record 3, Main entry term, French
- oscillateur à oscillation libre
1, record 3, French, oscillateur%20%C3%A0%20oscillation%20libre
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2009-08-03
Record 4, English
Record 4, Subject field(s)
- Lasers and Masers
Record 4, Main entry term, English
- passive hydrogen mazer
1, record 4, English, passive%20hydrogen%20mazer
correct
Record 4, Abbreviations, English
- PHM 2, record 4, English, PHM
correct
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
The PHM is an atomic clock with outstanding stability for averaging times from 1 to 100, 000 seconds, to be used in precise positioning, time keeping and other on-boards applications. It is designed to perform in space environment for not less than 12 years. The operating principle exploits the stimulated energy emission occurring during the hyperfine transition of the atomic hydrogen in a miniaturised microwave cavity. The ultra stable RF [Radio Frequency] generated signal, at the frequency of 1420. 4057517.. MHz [megahertz], is used as a reference in a frequency synthesiser to generate the 10 MHz standard reference frequency. 3, record 4, English, - passive%20hydrogen%20mazer
Record number: 4, Textual support number: 1 OBS
The PHM is the most stable spaceborne atomic clock ever developed for an operational programme. The PHM is the master clock for the ESA/EU [European Space Agency/Europe] Galileo Navigation System. 3, record 4, English, - passive%20hydrogen%20mazer
Record 4, Key term(s)
- passive hydrogen maser
Record 4, French
Record 4, Domaine(s)
- Masers et lasers
Record 4, Main entry term, French
- maser à hydrogène passif
1, record 4, French, maser%20%C3%A0%20hydrog%C3%A8ne%20passif
correct, masculine noun
Record 4, Abbreviations, French
- PHM 2, record 4, French, PHM
correct, masculine noun
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
GIOVE-B transporte à son bord deux horloges atomiques au rubidium et un maser à hydrogène passif [PHM], l'horloge atomique la plus précise au monde, toutes trois conçues et réalisées par la société neuchâteloise SpectraTime, filiale du groupe Orolia. Ces horloges constituent la base de temps des satellites, et donc l'élément clé de ce premier système de navigation européen. Elles permettent d'atteindre une stabilité de moins de 10 milliardièmes de secondes par jour. « C'est la première fois qu'un tel maser à hydrogène passif (PHM) est envoyé dans l'espace, et c'est lui qui donnera à Galileo ses performances uniques au monde. Pour donner un point de comparaison, nos horloges sont 10 millions de fois plus précises qu'une montre à quartz » [...] SpectraTime. 2, record 4, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif
Record number: 4, Textual support number: 1 OBS
Le second satellite expérimental du système européen de positionnement par satellite Galileo, destiné notamment à tester l'horloge atomique la plus précise jamais placée en orbite à ce jour, a été lancé avec succès le 27 avril 2008 dernier du centre spatial de Baïkonour. Ce satellite de test, baptisé GIOVE-B (Galileo In-Orbit Validation Element) [...] Galileo, premier système européen de navigation et de positionnement par satellite [...] sera compatible avec les deux autres systèmes de navigation par satellite couvrant l'ensemble du globe : le système américain GPS et le système russe Glonass. 2, record 4, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif
Record number: 4, Textual support number: 2 OBS
Le maser ("Microwave Amplification by Stimulated Emission of Radiation") à hydrogène est une horloge atomique extrêmement stable basée sur l'atome d'hydrogène. Il a été inventé par Kleppner et Ramsey en 1960 à l'université de Harvard. Le principe de fonctionnement est semblable à celui du LASER sauf que la radiation émise est une radiation micro-onde et non pas optique. Le maser à hydrogène est utilisé principalement en radioastronomie et en géodésie comme horloge pour la synchronisation de radiotélescopes utilisant la technique du VLBI (Very Long Base Interferometry). Il est utilisé également pour la poursuite des sondes planétaires (Deep Space Tracking). Dans le futur, il pourrait être utilisé dans les systèmes de navigation par satellite de type GPS à cause de sa très grande stabilité (cf l'avenir du temps atomique ). 3, record 4, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2003-09-30
Record 5, English
Record 5, Subject field(s)
- Pumps
Record 5, Main entry term, English
- metering pump
1, record 5, English, metering%20pump
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- dosing pump 2, record 5, English, dosing%20pump
correct
- dosage pump 3, record 5, English, dosage%20pump
- proportioning pump 4, record 5, English, proportioning%20pump
- feed pump 2, record 5, English, feed%20pump
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Metering pumps move precise volumes of liquid in a specified time period to provide accurate flow rates. This class of pumps moves liquids in two stages : the suction stroke and the discharge stroke. During the suction stroke, liquid is pulled into the pump cavity past the inlet check valve. During the discharge stroke, the inlet valve closes; the outlet valve opens, and the liquid is pushed out. Vary the flow either by changing the stroke length or by adjusting the cycle frequency. Described below are a few types of metering pumps [i. e. ] bellows pumps,... diaphragm pumps,... piston pumps,... travelling cylinder pumps... 5, record 5, English, - metering%20pump
Record number: 5, Textual support number: 2 CONT
The Akzo Nobel water-phase preparation unit includes four holding tanks for the water-phase chemicals and dosage and mixing equipment for emulsifier, acid, stabiliser and water. All equipment is mounted on a steel structure with a pipe system that allows the use of the dosage pumps for dosing as well as for circulation, and for filling the tanks. 3, record 5, English, - metering%20pump
Record 5, French
Record 5, Domaine(s)
- Pompes
Record 5, Main entry term, French
- pompe doseuse
1, record 5, French, pompe%20doseuse
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- pompe de dosage 2, record 5, French, pompe%20de%20dosage
correct, feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
[L'unité] mobile de pilotage conçue pour résoudre les problèmes d'eau potable [...] comprend [une] unité de filtration membranaire pouvant adapter une membrane en plan spiralé de nanofiltration ou d'osmose inverse [et une] unité d'ultrafiltration hybride (frontale ou tangentielle) qui permet de tester des eaux de surface ou des eaux souterraines avec un minimum de pré-traitement. [...] Des pompes doseuses permettent l'ajout d'additifs chimiques, si nécessaire, en pré ou en post-traitement. Les solutions de nettoyage peuvent aussi être dosées automatiquement à l'aide de ces pompes. 3, record 5, French, - pompe%20doseuse
Record number: 5, Textual support number: 2 CONT
Spécialiste du dosage, de l'injection et du transfert, DKM propose une gamme complète de pompes doseuses, à membranes ou à piston, qui interviennent dans le process des industries chimiques, des pétroliers ou du traitement des eaux. 4, record 5, French, - pompe%20doseuse
Record number: 5, Textual support number: 3 CONT
Lorsque la liqueur stérilisante doit être introduite dans une conduite sous pression à débit constant ou variable, on utilise généralement les pompes doseuses [...], qui permettent son injection sous pression. 5, record 5, French, - pompe%20doseuse
Record number: 5, Textual support number: 1 OBS
Ne pas confondre avec «pompe volumétrique» (en anglais : «displacement pump»), qui se rapporte à une pompe dans laquelle l'accroissement d'énergie est réalisé dans des chambres dont le volume augmente (phase d'aspiration) et diminue (phase de refoulement) de telle sorte que l'écoulement procède par volumes engendrés successifs. 6, record 5, French, - pompe%20doseuse
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Bombas
Record 5, Main entry term, Spanish
- bomba dosificadora
1, record 5, Spanish, bomba%20dosificadora
correct, feminine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Bomba para suministrar cantidades precisas de un producto. 2, record 5, Spanish, - bomba%20dosificadora
Record 6 - internal organization data 2001-11-30
Record 6, English
Record 6, Subject field(s)
- Vacuum Tubes (Electronics)
- Safety (Water Transport)
- Radar, Radio Guidance and Goniometry
Record 6, Main entry term, English
- repeller
1, record 6, English, repeller
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- reflector 1, record 6, English, reflector
correct
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
A klystron which employs a reflector(repeller) electrode in place of a second resonant cavity to redirect the velocity-modulated electrons through the resonant cavity. The repeller causes one resonant circuit to serve as both input and output, which simplifies the tuning operation. This type of klystron is well adapted for use as an oscillator because the frequency is easily controlled by varying the position of the repeller. 1, record 6, English, - repeller
Record 6, French
Record 6, Domaine(s)
- Tubes et lampes (Électronique)
- Sécurité (Transport par eau)
- Radar, radioguidage et radiogoniométrie
Record 6, Main entry term, French
- réflecteur
1, record 6, French, r%C3%A9flecteur
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2001-09-14
Record 7, English
Record 7, Subject field(s)
- Lasers and Masers
- Optics
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 7, Main entry term, English
- square optical cavity laser gyro
1, record 7, English, square%20optical%20cavity%20laser%20gyro
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- square cavity laser gyro 1, record 7, English, square%20cavity%20laser%20gyro
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 OBS
The Canterbury Ring Laser, built in the Department of Physics principally by Morrie Poulton and Clive Rowe under the guidance of Professor Hans Bilger of Oklahoma State University, is a large laser gyroscope with an unusually high frequency resolution... The Canterbury ring system has a nearly square optical cavity with an area of 0. 7547 square metres and a perimeter of 3. 477 m(and so a free spectral range of 86. 22 MHz). 2, record 7, English, - square%20optical%20cavity%20laser%20gyro
Record number: 7, Textual support number: 2 OBS
Specialized configurations - a triple XYZ axis triangular cavity laser in a solid glass block for an optical ring laser gyro, for example - also exist but are much much less common - you probably won’t find one of these at a local flea market! 3, record 7, English, - square%20optical%20cavity%20laser%20gyro
Record 7, Key term(s)
- square optical cavity laser gyroscope
Record 7, French
Record 7, Domaine(s)
- Masers et lasers
- Optique
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 7, Main entry term, French
- gyrolaser à cavité carrée
1, record 7, French, gyrolaser%20%C3%A0%20cavit%C3%A9%20carr%C3%A9e
correct, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Le gyrolaser est un oscillateur optique dans lequel un laser émet deux ondes progressives indépendantes qui parcourent une cavité résonnante en sens contraire l'une de l'autre. Dans les gyrolasers des centrales Sagem [...] cette cavité a la forme d'un triangle équilatéral et trois électrodes (deux anodes et une cathode) excitent un mélange d'hélium et de néon créant ainsi un milieu amplificateur. Des gyrolasers à cavité carrée ont aussi été développés. 1, record 7, French, - gyrolaser%20%C3%A0%20cavit%C3%A9%20carr%C3%A9e
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 1999-03-26
Record 8, English
Record 8, Subject field(s)
- Lasers and Masers
Record 8, Main entry term, English
- cavity resonance
1, record 8, English, cavity%20resonance
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
the resonant frequency of a cavity resonator. 1, record 8, English, - cavity%20resonance
Record 8, French
Record 8, Domaine(s)
- Masers et lasers
Record 8, Main entry term, French
- résonance de cavité
1, record 8, French, r%C3%A9sonance%20de%20cavit%C3%A9
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 1996-05-13
Record 9, English
Record 9, Subject field(s)
- Analytical Chemistry
Record 9, Main entry term, English
- crystal detector 1, record 9, English, crystal%20detector
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
A simple arrangement of two cavities in series showed the feasibility of detecting traces of one gas in another. A klystron was used to generate microwave power which was fed through a wave guide to a transmission-type cavity. Another cavity was mounted in series with and tuned to the same frequency as the first; both cavities were identical except that the second had a gas inlet and outlet ports. From this measuring cell, its microwave energy was sent to a crystal detector. By frequency-modulating the klystron with a 50-cps sine wave voltage on the repeller, a burst of energy passes to the detector each time the generator frequency equals that of the cavities. The detector current is amplified and measured with an oscilloscope. At the beginning of the run, the two cavities are filled with the nitrogen carrier gas and, if the composition in one of the cavities is changed, its electrical size will change... causing a decrease of current from the detector. 1, record 9, English, - crystal%20detector
Record 9, French
Record 9, Domaine(s)
- Chimie analytique
Record 9, Main entry term, French
- détecteur au cristal
1, record 9, French, d%C3%A9tecteur%20au%20cristal
proposal, masculine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 1987-02-03
Record 10, English
Record 10, Subject field(s)
- Medical and Surgical Equipment
Record 10, Main entry term, English
- intrauterine pressure monitor
1, record 10, English, intrauterine%20pressure%20monitor
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 DEF
a device designed to detect and measure intrauterine and amniotic fluid pressure with a catheter placed transcervically into the uterine cavity. The device is used to monitor the strength, duration, and frequency of uterine contractions during labor. 1, record 10, English, - intrauterine%20pressure%20monitor
Record 10, French
Record 10, Domaine(s)
- Équipement médico-chirurgical
Record 10, Main entry term, French
- moniteur de la pression intra-utérine
1, record 10, French, moniteur%20de%20la%20pression%20intra%2Dut%C3%A9rine
proposal, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record 10, Spanish
Record 10, Textual support, Spanish
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