TERMIUM Plus®

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POSITION MEASURING APPARATUS [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2009-01-14

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Aircraft Piloting and Navigation
  • Navigation Instruments
  • Launching and Space Maneuvering
CONT

Laser Position Measurement. A commercially available position measuring device, Lasernet, was donated by the Namco Controls Corporation. A single narrow-beam laser is continuously swept across the field at a fixed height. A reflector of known geometry on the vehicle reflects the beam back to the device, which reports the initial angle, in the local geographic frame, at which a reflection is detected and the angular width over which the reflection is continuously detected. Knowing the geometry of the reflector, which should be independent of the heading of the aircraft, is sufficient to determine the vehicle’s two-dimensional position in the local geographic frame.

Key term(s)
  • position measuring apparatus

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation
  • Lancement et manœuvres dans l'espace
CONT

La centrale à inertie est un appareil de mesure du positionnement très utilisé en raison de son autonomie et de sa faible sensibilité aux perturbations externes. On en trouve à bord des avions de ligne, des sous-marins, ou des missiles intercontinentaux. Elle est aujourd'hui souvent couplée à un GPS : ce système hybride permet de réduire les erreurs, et donc d'améliorer la qualité de la mesure.

Spanish

Save record 1

Record 2 2000-11-22

English

Subject field(s)
  • Hydrology and Hydrography
  • Scientific Measurements and Analyses
  • Metering Instruments
  • Storage of Oil and Natural Gas
DEF

The wire or cord marking the measuring section and carrying pendants or markers to indicate the position of the observation points, but not used for suspending apparatus.

OBS

tape measuring wire: term standardized by ISO.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Mesures et analyse (Sciences)
  • Compteurs de consommation et débitmètres
  • Stockage du pétrole et du gaz naturel
DEF

Câble marquant la section de mesurage, auquel sont attachés des éléments suspendus pour indiquer la position des verticales de mesurage mais non pour y suspendre des appareils.

OBS

câble de mesurage; ruban de mesurage : termes normalisés par l'ISO.

Spanish

Save record 2

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