TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Inductively coupled electrodeless system : An induction coil is powered by a frequency generator. The induced current causes acceleration of charged particles inside the lamp bulb. The metal vapour atoms are excited and ionized causing the release of ultra-violet energy. The UV [ultra-violet] energy causes the phosphor coating on the lamp wall to glow, creating white light.  2, record 1, English, - inductively%20coupled%20electrodeless%20system

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Système sans électrodes à couplage par induction : Une bobine d’induction est alimentée par un générateur à haute fréquence. Le courant induit suscite l’accélération des particules chargées à l’intérieur de l’ampoule de la lampe. Les atomes de vapeur du métal sont alors excités et ionisés, ce qui entraîne un dégagement d’énergie ultra-violette. Cette énergie UV [ultra-violet] rend luminescente la couche de phosphore sur la paroi interne de l’ampoule, produisant de la lumière blanche.  1, record 1, French, - syst%C3%A8me%20sans%20%C3%A9lectrodes%20%C3%A0%20couplage%20par%20induction

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

An electron tube in which neon is ionized by electric current to produce a luminous red glow discharge(used in outdoor ad signs).  1, record 2, English, - neon%20tube

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

For character indicator tubes, the minimum cathode current at which the cathode is completely covered by glow.  2, record 3, English, - minimum%20cathode%20current

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Dans les tubes indicateurs de caractères, valeur minimale du courant cathodique pour laquelle la cathode est entièrement gainée par la luminescence.  1, record 3, French, - courant%20cathodique%20minimal

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Classical DC(direct current) electrical discharge tube. In the glow discharge regime(10^14 to 5x10^18 charged particles/m^3, 10^4 to 5x10^4 K) the plasma is luminous due to excitation collisions by accelerated electrons. At high current densities the high heat load on the cathode triggers electron emission and the discharge changes to the highly luminous arc regime(10^20 to 10^25 charged particles/m^3, 2x10^3 to 10^5 K).  1, record 4, English, - discharge%20regime

Record number: 4, Textual support number: 1 OBS

As the current and voltage increase, the cathode current density also increases, ultimately heating the cathode and causing incandescence and thermionic emission. Once the cathode is hot enough to emit electrons thermionically, the discharge will change to an arc regime.  2, record 4, English, - discharge%20regime

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Dessiccation de l'air. Il est indispensable que l'air d'alimentation de l'ozoneur soit très sec, en effet, du fait de la présence de vapeur d'eau, il se produit un abaissement de la valeur de la constante diélectrique du milieu gazeux, ce qui peut entraîner à la limite le passage du régime d'effluve à un régime d'arc; avec pour conséquence la détérioration plus ou moins rapide des électrodes.  1, record 4, French, - r%C3%A9gime%20d%27effluve

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Photoionization detector... consists of a chamber into which gases suitable for the discharge such as helium, argon, nitrogen, or hydrogen are introduced through [a] tube which serves as the cathode for the discharge. The ultraviolet radiation or glow discharge in the hollow cathode, maintained by a small current between the cathode and discharge anode, is sufficiently energetic to ionize components in the carrier gas effluent entering through the tube, the collecting electrode(anode) for the ions liberated within the chamber enclosed by the second cathode.  5, record 5, English, - photoionization%20detector

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

Une version commerciale de ce détecteur est apparue récemment sur le marché, il est composé d'une lampe UV [détecteur à photoionisation] scellée qui émet un rayonnement à 121,6nm (10,2 eV) à travers une fenêtre en fluorure de magnésium. Si le soluté passant dans ce détecteur a un potentiel d'ionisation inférieur à 10,2eV, il s'ionise en absorbant un photon. Les ions issus de cette photoionisation sont collectés en appliquant un potentiel positif sur une des électrodes. Le courant qui en résulte est amplifié par un électromètre identique à celui utilisé avec un détecteur à ionisation de flamme.  1, record 5, French, - d%C3%A9tecteur%20%C3%A0%20photoionisation

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

In 1956, Harley and Pretorius described a simple discharge detector for gas chromatography based on the electrical properties of a glow discharge, the voltage across the gaseous discharge being a function of the type of gas present. Druyvesteyn and Penning in 1940 reviewed the complex nature of the glow discharge, noting that the discharge is maintained by electrons emitted from the cathode which result from processes related to positive ion bombardment, photoelectric emission, and collisions with excited atoms. When trace quantities of a material eluted from a chromatographic column enter the detector (consisting of a small platinum disk cathode and a tungsten wire anode), a voltage change resulted which was recorded.  2, record 6, English, - glow%20discharge%20detector

Record number: 6, Textual support number: 1 OBS

Using neon lamps Pitkethly found... that these detector were current and pressure independent at 1-1. 5 mS and 3-5 mm Hg.... In 1958, Roberts and Hinkle evaluated glow discharge tubes as detectors for compounds in the concentration range of 5-500 ppm and concluded that the detector was not applicable to general-purpose use.... More recently, Wilhite described glow discharge-type devices which act electrically similar to a gas-filled voltage-regulator tube... Riley described the use of an argon purity meter, a glow-type discharge detector, for the determination of small concentrations(0-1500 ppm) of impurity gases in argon.  2, record 6, English, - glow%20discharge%20detector

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish