TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

The insertion of an external modulator in the transmitter optical path thereby providing the capability of rapidly varying some property of the light beam output in accordance with the modulating information.  2, fiche 1, Anglais, - external%20optical%20modulation

Record number: 1, Textual support number: 1 OBS

Laser  2, fiche 1, Anglais, - external%20optical%20modulation

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Modulation d'une onde optique, émise dans un milieu autre que la source optique.  2, fiche 1, Français, - modulation%20externe

Fiche 1,  Justifications,  Espagnol

Record number: 1, Textual support number: 1 DEF

Inserción de un modulador externo en el trayecto óptico de transmisión de modo que proporcione la capacidad de cambiar rápidamente algunas características del haz de luz emitido, de acuerdo con la información moduladora.  1, fiche 1, Espagnol, - modulaci%C3%B3n%20exterior

Record number: 1, Textual support number: 1 OBS

En laser.  1, fiche 1, Espagnol, - modulaci%C3%B3n%20exterior

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

A cathode-ray tube whose screen has the property of darkening under the impact of an electron beam.  2, fiche 2, Anglais, - skiatron

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Tube cathodique dont l'écran possède la propriété de donner une trace sombre sous l'impact du faisceau électronique.  2, fiche 2, Français, - tube%20%C3%A0%20trace%20sombre

Fiche 2,  Justifications,  Espagnol

Record number: 2, Textual support number: 1 DEF

Tubo catódico cuya pantalla posee la propiedad de dar una traza oscura al impacto de haz electrónico.  1, fiche 2, Espagnol, - tubo%20de%20traza%20oscura

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 DEF

Method for investigating atmospheric behaviour using pulsed light beams (lasers).  7, fiche 3, Anglais, - light%20detection%20and%20ranging

Record number: 3, Textual support number: 1 CONT

Light detection and ranging(lidar) is a technique in which a beam of light is used to make range-resolved remote measurements. A lidar [instrument] emits a beam of light, that interacts with the medium or object under study. Some of this light is scattered back toward the lidar. The backscattered light captured by the lidar's receiver is used to determine some property or properties of the medium in which the beam propagated or the object that caused the scattering. The lidar technique operates on the same principle as radar; in fact, it is sometimes called laser radar. The principal difference between lidar and radar is the wavelength of the radiation used. Radar uses wavelengths in the radio band whereas lidar uses light, that is usually generated by lasers in modern lidar systems. The wavelength or wavelengths of the light used by a lidar depend on the type of measurements being made and may be anywhere from the infrared through the visible and into the ultraviolet. The different wavelengths used by radar and lidar lead to the very different forms that the actual instruments take. The major scientific use of lidar is for measuring properties of the earth's atmosphere, and the major commercial use of lidar is in aerial surveying and bathymetry(water depth measurement). Lidar is also used extensively in ocean research and has several military applications, including chemical and biological agent detection. Lidar can also be used to locate, identify, and measure the speed of vehicles. Hunters and golfers use lidar-equipped binoculars for range finding.  6, fiche 3, Anglais, - light%20detection%20and%20ranging

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 DEF

Méthode d'étude du comportement de l'atmosphère à l'aide de faisceaux lumineux pulsés (lasers).  4, fiche 3, Français, - d%C3%A9tection%20et%20t%C3%A9l%C3%A9m%C3%A9trie%20par%20ondes%20lumineuses

Record number: 3, Textual support number: 1 OBS

La détection se fait par des cellules optiques suivies de photomultiplicateurs.  5, fiche 3, Français, - d%C3%A9tection%20et%20t%C3%A9l%C3%A9m%C3%A9trie%20par%20ondes%20lumineuses

Fiche 3,  Justifications,  Espagnol

Record number: 3, Textual support number: 1 DEF

Método para investigar las características atmosféricas usando pulsaciones de haces de luz (láser).  1, fiche 3, Espagnol, - lidar