TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

A spark-plug type leak detector was located in the backup gas chamber to sense any extrusion of sodium from the seal. AN-fitting was installed in the body of the gas chamber to facilitate clean-up operations in the event of sodium leakage.  1, fiche 1, Anglais, - spark%2Dplug%20type%20leak%20detector

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Détection et localisation des fuites sodium. Les moyens de détection locale font appel à des dispositifs électriques qui exploitent la bonne conductibilité du sodium. Ils sont placés sur ou au voisinage immédiat des structures à surveiller avec une certaine distribution spatiale. Tous ces détecteurs sont constitués d'une électrode métallique isolée électriquement d'une autre partie métallique très proche, portée au potentiel de terre. [...] Suivant ce principe existent : - les détecteurs par bougies [...] sur les appareils, dans les bacs de rétention ou dans des gouttières placées sous les tuyauteries; - les détecteurs de type sandwich [...]  1, fiche 1, Français, - d%C3%A9tecteur%20par%20bougies

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

A leak detector employing two similar gauge tubes in a bridge circuit with a trap which is selective for the tracer gas between the system and one of the tubes.  1, fiche 2, Anglais, - differential%20leak%20detector

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 DEF

A form of leak test in which the interior of an enclosure is actively evacuated while a tracer gas is applied to the exterior. The objective is to draw in some of the gas through possible leakage paths so that its presence becomes evident to a leak detector which will respond to the type of the type of gas used and which is connected in the evacuating system.  1, fiche 3, Anglais, - dynamic%20leak%20test

Fiche 3,  Justifications,  Français

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 DEF

A leak detector output signal due to entrapped tracer gas in the vacuum system which cannot be quickly removed by pumping, a virtual leak of the tracer gas.  1, fiche 4, Anglais, - background

Fiche 4,  Justifications,  Français

Fiche 4,  Justifications,  Espagnol

Fiche 5,  Justifications,  Anglais

Record number: 5, Textual support number: 1 CONT

Thermionic or Electron Impact Detector. In 1957, Ryce and Bryce described a sensitive ionization gauge based on the ionization potentials of vapors. It comprised a filament, a grid, and a plate. The potential difference between the filament and grid accelerated electrons which may ionize any gas in their path. If the grid potential is maintained at a level insufficient to ionize the helium carrier gas... no current flows in the plate circuit. If a potential difference of 18 V is maintained between the filament and the grid, compounds of lower ionization potential in the helium will be ionized and the positive ions produced will yield a cathode current, the current noted being a measure of the ion concentration. Into the modified ionizing chamber, operated at reduced pressure, a small fraction of the column effluent gas stream(less than 0. 5%) was allowed to flow into the gauge through a controlled leak. Over a 0. 02-l. 5 mm Hg pressure range, the sensitivity was approximately proportional to the pressure, and sensitivities in the range of 10[ minus superscript 12] mole were claimed.  1, fiche 5, Anglais, - electron%20impact%20detector

Fiche 5,  Justifications,  Français

Fiche 5,  Justifications,  Espagnol

Fiche 6,  Justifications,  Français

Fiche 6,  Justifications,  Espagnol

Fiche 7,  Justifications,  Français

Fiche 7,  Justifications,  Espagnol

Fiche 8,  Justifications,  Anglais

Record number: 8, Textual support number: 1 OBS

A gas-leak detector to guarantee safety for operatives by detecting too high an ozone level at any point.  1, fiche 8, Anglais, - gas%2Dleak%20detector

Fiche 8,  Justifications,  Français

Record number: 8, Textual support number: 1 OBS

Le Détecteur de fuite de gaz, permettant d'assurer la sécurité des personnels et détectant un niveau trop élevé du taux d'oxone dans un local.  1, fiche 8, Français, - d%C3%A9tecteur%20de%20fuite%20de%20gaz

Fiche 8,  Justifications,  Espagnol