TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

Concentric bands of coloured light sometimes seen around the areas where two transparent surfaces are not quite in contact. The rings are the results of interference and occur when the separation between the surfaces is of the same order as the wavelength of light. In enlarging, Newton's rings can form... Newton's rings can also be a nuisance in film slide projection...  3, fiche 1, Anglais, - Newton%27s%20rings

Record number: 1, Textual support number: 1 OBS

Newton rings: term standardized by the Canadian General Standards Board (CGSB).  4, fiche 1, Anglais, - Newton%27s%20rings

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Anneaux irréguliers susceptibles d'apparaître au tirage ou à la projection provoqués par des variations locales dans le contact entre la pellicule de l'agrandisseur et la plaque de verre.  2, fiche 1, Français, - anneaux%20de%20Newton

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

Interference by a substance that produces a signal by a similar mechanism to the analyte, which in the given procedure(including the apparatus used) can not be distinguished from the signal given by the analyte. For example, in a colour reaction with an organic ligand by also reacting with the ligand and producing a coloured compound absorbing at the same wavelength as the compound produced by the analyte or in an atomic spectrochemical analysis by absorbing or emitting at the same wavelength as the analyte.  1, fiche 2, Anglais, - SM%2Dinterference

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 OBS

Interférence provoquée par une substance qui émet un signal dont le mécanisme d'émission est similaire au mécanisme d'émission du produit à analyser. À cause de la méthode et de l'appareillage utilisés, les signaux sont confondus.  2, fiche 2, Français, - interf%C3%A9rence%20par%20m%C3%A9canisme%20similaire

Fiche 2,  Justifications,  Espagnol

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

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 DEF

[A] remote sensing survey type, whereby the sensor records digitally the same area simultaneously in several spectral bands through scanning.  3, fiche 4, Anglais, - multispectral%20scanning

Record number: 4, Textual support number: 1 CONT

Scanning systems can be used on both aircraft and satellite platforms and have essentially the same operating principles. A scanning system used to collect data over a variety of different wavelength ranges is called a multispectral scanner(MSS), and is the most commonly used scanning system. There are two main modes of scanning employed to acquire multispectral image data-across-track scanning, and along-track scanning.  2, fiche 4, Anglais, - multispectral%20scanning

Record number: 4, Textual support number: 2 CONT

Multispectral scanning incorporates high resolution instruments in visible and infrared wavelengths to photograph detailed images.  4, fiche 4, Anglais, - multispectral%20scanning

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multispectral scanning; MSS: term and abbreviation officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  5, fiche 4, Anglais, - multispectral%20scanning

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 DEF

Exploration d'une scène de façon séquentielle, sur plusieurs bandes spectrales, en vue d'obtenir une imagerie multispectrale.  3, fiche 4, Français, - balayage%20multispectral

Record number: 4, Textual support number: 1 OBS

balayage multispectral; MSS : terme et abréviation uniformisés par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  2, fiche 4, Français, - balayage%20multispectral

Fiche 4,  Justifications,  Espagnol

Fiche 6,  Justifications,  Anglais

Record number: 6, Textual support number: 1 CONT

Wide Field Camera 3(WFC3) is the next-generation visual-imaging instrument for the Hubble Space Telescope.... WFC3 will be sensitive to wavelength from the near-ultraviolet to the near-infrared spectrum.... Using a 4, 000 by 4, 000 pixel charged couple device detector(the same technology that exists in a video camera) with a large field of view, WFC3 provides images with less "background noise" than previous instruments.  2, fiche 6, Anglais, - wide%20field%20camera

Fiche 6,  Justifications,  Français

Record number: 6, Textual support number: 1 CONT

[...] 5 différents instruments scientifiques convertissent chacun de ses faisceaux lumineux en images et données utilisables. Pour cela, HST [téléscope spatial Hubble] est équipé d'une caméra à grand champ (située dans un module radial), couvrant les parties bleues, ultraviolettes et surtout rouges et infrarouges du spectre lumineux.  2, fiche 6, Français, - cam%C3%A9ra%20%C3%A0%20grand%20champ

Fiche 6,  Justifications,  Espagnol

Fiche 7,  Justifications,  Anglais

Record number: 7, Textual support number: 1 CONT

The technological future of the Internet may be gleaned by examining advanced research in optical-packet networks. In such a network, a single wavelength would carry pulses of light from a laser that can switch off and on in a trillionth of a second, with each pulse representing one bit. Each pulse would be combined with perhaps 10, 000 or so other pulses from the same laser to create a data packet.  2, fiche 7, Anglais, - optical%20packet%20network

Fiche 7,  Justifications,  Français

Record number: 7, Textual support number: 1 CONT

Les recherches de pointe sur les réseaux optiques de communication par paquets dessinent peut-être son futur. Dans de tels réseaux, une seule longueur d'onde serait émise par un laser dont le temps de commutation atteindrait un millième de milliardième de seconde. Les impulsions laser seraient produites suffisamment vite pour transmettre jusqu'à 100 gigabits par seconde. En combinant 10 000 impulsions du même laser, on formerait un paquet de données.  1, fiche 7, Français, - r%C3%A9seau%20optique%20de%20communication%20par%20paquets

Fiche 7,  Justifications,  Espagnol

Fiche 8,  Justifications,  Anglais

Record number: 8, Textual support number: 1 CONT

Quantities of the same kind may be grouped together into categories of quantities, for example : a) work, heat, energy; b) thickness, circumference, wavelength.  1, fiche 8, Anglais, - category%20of%20quantities

Fiche 8,  Justifications,  Français

Record number: 8, Textual support number: 1 CONT

Les grandeurs de même nature peuvent être groupées ensemble en catégories de grandeurs, par exemple : a) travail, chaleur, énergie; b) épaisseur, circonférence, longueur d'onde.  1, fiche 8, Français, - cat%C3%A9gorie%20de%20grandeurs

Fiche 8,  Justifications,  Espagnol

Fiche 9,  Justifications,  Anglais

Record number: 9, Textual support number: 1 DEF

Attribute of a phenomenon, body or substance that may be distinguished qualitatively and determined quantitatively.  2, fiche 9, Anglais, - measurable%20quantity

Record number: 9, Textual support number: 1 OBS

1. The term quantity may refer to a quantity in a general sense [length, time, mass, temperature, electrical resistance, amount-of-substance concentration] or to a particular quantity [length of a given rod; electrical resistance of a given specimen of wire; amount-of-substance concentration of ethanol in a given sample of wine]. 2. Quantities that can be placed in order of magnitude relative to one another are called quantities of the same kind. 3. Quantities of the same kind may be grouped together into categories of quantities for examples : a) work, heat, energy; b) thickness circumference, wavelength.  2, fiche 9, Anglais, - measurable%20quantity

Record number: 9, Textual support number: 2 OBS

measurable quantity; quantity: terms and definition approved by ISO, the International Bureau of Weights and Measures (BIPM), the International Electrotechnical Commission (IEC), the International Organization of Legal Metrology (OIML), and others.  3, fiche 9, Anglais, - measurable%20quantity

Fiche 9,  Justifications,  Français

Record number: 9, Textual support number: 1 DEF

Attribut d'un phénomène, d'un corps ou d'une substance, qui est susceptible d'être distingué qualitativement et déterminé quantitativement.  2, fiche 9, Français, - grandeur%20mesurable

Record number: 9, Textual support number: 1 OBS

1. Le terme «grandeur» peut se rapporter à une grandeur dans un sens géneral [longueur, temps, masse, température, résistance électrique, concentration en quantité de matière] ou à une grandeur particulière [longueur d'une tige donnée, résistance électrique d'un échantillon donné de fil, concentration en quantité de matière d'éthanol dans un échantillon donné de vin]. 2. Les grandeurs qui peuvent être classées les unes par rapport aux autres en ordre croissant (ou décroissant) sont appelées grandeurs de même nature. 3. Les grandeurs de même nature peuvent être groupées ensemble en catégories de grandeurs, par exemple : a) travail, chaleur, énergie; b) épaisseur, circonférence, longueur d'onde.  2, fiche 9, Français, - grandeur%20mesurable

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grandeur mesurable : terme normalisé par l'AFNOR.  3, fiche 9, Français, - grandeur%20mesurable

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grandeur mesurable; grandeur : termes et définition entérinés, entre autres, par l'ISO, le Bureau international des poids et mesures (BIPM), par la Commission électrotechnique internationale (CEI) et par l'Organisation internationale de métrologie légale (OIML).  3, fiche 9, Français, - grandeur%20mesurable

Fiche 9,  Justifications,  Espagnol

Fiche 10,  Justifications,  Anglais

Record number: 10, Textual support number: 1 DEF

A system for simultaneously observing the same(small) target with several filtered bands, through which data can be recorded. Usually applied to cameras, may be used for scanning radiometers which utilize dispersant optics to split wavelength bands apart for viewing by several filtered detectors.  2, fiche 10, Anglais, - multiband%20system

Fiche 10,  Justifications,  Français

Record number: 10, Textual support number: 1 DEF

Système permettant d'observer le même objet (de taille réduite) simultanément avec plusieurs filtres de bande, à travers lesquels des données peuvent être enregistrées.  2, fiche 10, Français, - syst%C3%A8me%20toutes%20ondes

Fiche 10,  Justifications,  Espagnol

Record number: 10, Textual support number: 1 DEF

Sistema para la observación simultánea del mismo objeto (pequeño) con varias ondas filtradas, a través de las cuales se pueden registrar datos.  1, fiche 10, Espagnol, - sistema%20multibanda

Fiche 11,  Justifications,  Anglais

Record number: 11, Textual support number: 1 CONT

Optoacoustic detector. Light which is absorbed by a molecule is generally reradiated from the molecule in the form of heat. If a laser, at an absorbing wavelength of a gas of interest, is passed through a closed cell, the temperature of the entire gas in the cell will rise and thus the pressure of the gas in the cell will rise. If the laser is turned on and off at a frequency of 100-20000 Hz, the resulting pressure rises and drops can be picked up as a signal by sensitive microphones. This somewhat odd combination of optics and acoustics turns out to have several advantages over systems which measure the absorption directly. The absorption will be quite small and thus the change in intensity of the laser beam is nearly impossible to detect. Because pressure in the cell rises more quickly for small length cells, this effect exactly cancels out gains in overall absorption by making the cell longer. Thus, a small optoacoustic cell will accomplish the same as a larger cell making its size a great asset.... The device is being tested as a sniffer for bomb vapours and for ambient air analyses.  1, fiche 11, Anglais, - optoacoustic%20detector

Fiche 11,  Justifications,  Français

Fiche 11,  Justifications,  Espagnol