TERMIUM Plus®

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USABLE DISTANCE [5 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-09-05

English

Subject field(s)
  • Air Navigation Aids
  • Radar, Radio Guidance and Goniometry
DEF

The maximum distance from the localizer transmitter at a specified altitude, as verified by flight inspection, at which reliable course information is continuously received.

OBS

localizer usable distance : term and definition standardized by the Glossary for Pilots and Air Traffic Services Personnel Committee.

Key term(s)
  • localiser usable distance

French

Domaine(s)
  • Aides à la navigation aérienne
  • Radar, radioguidage et radiogoniométrie
DEF

Distance maximale de l'émetteur du radiophare d'alignement de piste (LCZR ou LOC) à une altitude spécifique (vérifiée par une inspection en vol) à laquelle l'indication de route fiable est reçue de façon continue.

OBS

distance maximale de réception du radiophare d'alignement de piste : terme et définition normalisés par le Comité sur le Glossaire à l'intention des pilotes et du personnel des services de la circulation aérienne.

Spanish

Save record 1

Record 2 2005-03-18

English

Subject field(s)
  • Thermoelectricity and Thermoelectronics
  • Weather Stations and Meteorological Instruments and Equipment
  • Scientific Instruments
DEF

A device to measure temperature making use of the thermoelectric effect, i.e., when two dissimilar conductors are joined together at their ends, a voltage proportional to the temperature difference between the junctions is developed.

CONT

The thermocouple is often used as a temperature measuring device as it can be used over a very wide temperature range, and also as it is a conveniently usable device which can give temperatures at a very small point, and present readings at a considerable distance away if necessary.

OBS

In practice one of the junctions (reference) is maintained at a fixed, known temperature.

Key term(s)
  • thermo-couple
  • thermo couple

French

Domaine(s)
  • Thermoélectrique et thermoélectronique
  • Stations, instruments et équipements météorologiques
  • Instruments scientifiques
DEF

Dispositif pour mesurer la température qui utilise l'effet thermoélectrique, c.-à-d. que, lorsque deux conducteurs différents sont réunis à leurs deux extrémités, il s'établit une différence de potentiel proportionnelle à la différence de température entre les jonctions.

CONT

Les mesures de température par thermocouple font appel à des mesures simples de type potentiométrique ou galvanométrique; dans ce dernier cas il est cependant préférable d'étalonner le thermocouple avec l'ensemble de ses fils de jonction afin d'éviter une erreur systématique due notamment à la présence de thermocouples parasites au niveau des soudures.

OBS

En pratique, une des jonctions (référence) est maintenue à une température fixe connue.

CONT

[Le] thermocouple [...] permet de repérer les hautes températures et de mesurer l'énergie rayonnante.

Spanish

Campo(s) temático(s)
  • Termoelectricidad y termoelectrónica
  • Estaciones, instrumentos y equipos meteorológicos
  • Instrumentos científicos
DEF

Dispositivo para medir la temperatura utilizando el efecto termoeléctrico; esto es, cuando se unen los extremos de dos conductores diferentes se produce una tensión proporcional a la diferencia de temperatura entre las conexiones.

OBS

En la práctica, una de las conexiones (referencia) se mantiene a una temperatura conocida fija.

Save record 2

Record 3 2002-03-28

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
  • Spacecraft
CONT

In a long synthetic aperture (array), SAR focusing involves the removal and compensation of path length differences from the antenna to the target on the ground.

CONT

The main advantage of a focused synthetic aperture is that it increases its array length over those radar signals that can be processed, and thus increases potential SAR resolution at any range. SAR focusing is a necessary process when the length of a synthetic array is a significant fraction of the range to ground being imaged, as the lines-of-sight(range) from a particular point on the ground to each individual element of the array differ in distance. These range differences, or path length differences, of the radar signals can affect image quality. In a focused SAR image these phase errors can be compensated for by applying a phase correction to the return signal at each synthetic aperture element. Focusing errors may be introduced by unknown or uncorrected platform motion. In an unfocused SAR image, the usable synthetic aperture length is quite limited.

OBS

SAR focusing: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Engins spatiaux
DEF

Élimination et compensation des différences de trajectoires entre l'antenne et la cible au sol.

OBS

focalisation SAR : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Save record 3

Record 4 2002-01-17

English

Subject field(s)
  • Telecommunications
  • Aircraft Piloting and Navigation
DEF

The maximum distance at a specified altitude at which the facility provides readable identification and reliable bearing information under average atmospheric conditions.

OBS

usable distance : term and definition officially approved by the International Civil Aviation Organization(ICAO).

French

Domaine(s)
  • Télécommunications
  • Pilotage et navigation aérienne
DEF

Distance maximale à une altitude spécifiée à laquelle l'installation émet une identification intelligible et des indications de direction sûres dans les conditions atmosphériques moyennes.

OBS

distance utile : terme et définition uniformisés par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Telecomunicaciones
  • Pilotaje y navegación aérea
DEF

Distancia máxima, a una altitud especificada, en el que la instalación proporciona identificación legible e información de rumbo confiable en presencia de condiciones meteorológicas normales.

OBS

distancia utilizable: término y definición aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 4

Record 5 2001-03-15

English

Subject field(s)
  • Printed Circuits and Microelectronics
  • Silk-Screen Printing
CONT

The screen tension tester is used to determine the amount of break away distance(distance of separation between the screen and substrate before printing) that is needed, or the amount of squeegee pressure that is needed to attain a desired printing definition. It is also used to determine whether the screen is at all usable.

French

Domaine(s)
  • Circuits imprimés et micro-électronique
  • Sérigraphie

Spanish

Save record 5

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