TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

An abrupt change in the tube voltage drop of a glow discharge tube during operation.  2, record 1, English, - voltage%20jump

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Variation brusque de la chute de tension d'un tube à décharge luminescente pendant son fonctionnement.  1, record 1, French, - saut%20de%20tension

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

[A] semiconductor chip is the key to an(LED's) light-emitting diode glow. An applied voltage drives "holes"(positive charges) from the p-type layer and electrons from the n-type layer into the active layer. When they meet, they give off photons.  1, record 2, English, - semi%2Dconductor%20chip

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

La puce à semi-conducteur est l'élément principal de la diode électroluminescente. Une différence de potentiel appliquée sur la puce semi-conductrice repousse, vers la couche active, des «trous» (des «charges positives») de la couche de type p, et des électrons de la couche de type n. Lorsqu'ils se rencontrent, ils libèrent des photons. La «couleur» de ces photons, c'est-à-dire leur longueur d'onde, dépend de la composition chimique des couches, et non des boîtiers colorés dans lesquels les fabricants logent les diodes de manière à les identifier.  2, record 2, French, - microplaquette%20semi%2Dconductrice

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

La forma sin encapsulado de un circuito integrado monolítico o un elemento de circuito.  1, record 2, Spanish, - plaqueta%20de%20semiconductor

Record 3,  Textual support,  English

Record number: 3, 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 3, English, - glow%20discharge%20detector

Record number: 3, 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 3, English, - glow%20discharge%20detector

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish