TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

ATTITUDE SOURCE [11 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2019-09-13

English

Subject field(s)
  • Spacecraft
  • Launching and Space Maneuvering
DEF

The body of a satellite, which includes its navigation, attitude control and propulsion systems as well as power source.

OBS

The satellite bus does not include its payload.

OBS

satellite bus: designation and definition officially approved by the Air Force Terminology Panel, the Joint Terminology Panel and the Defence Terminology Standardization Board.

OBS

spacecraft bus: designation officially approved by the RADARSAT-2 Terminology Official Approval Group (RTAG).

French

Domaine(s)
  • Engins spatiaux
  • Lancement et manœuvres dans l'espace
DEF

Corps d'un satellite comportant les systèmes de navigation, de contrôle d'attitude et d'alimentation ainsi que le module de propulsion.

OBS

La plateforme de satellite ne comprend pas la charge utile.

OBS

plateforme de satellite : désignation et définition uniformisées par le Groupe d'experts en terminologie de la Force aérienne, le Groupe d'experts en terminologie interarmées et le Conseil de normalisation de terminologie de la défense.

OBS

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

Key term(s)
  • plate-forme de satellite
  • plate-forme satellitaire

Spanish

Save record 1

Record 2 2019-07-11

English

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

... [the] standby attitude indicator shall(a) be powered from a source independent of the electrical generating system;(b) be operative without selection after total failure of the electrical generating system;(c) continue reliable operation for a minimum of 30 minutes after total failure of the electrical generating system;(d) operate independently of any attitude indicator system;...

CONT

The standby attitude reference system, comprised of the attitude indicator located on the extreme left center of the pilot's instrument panel and a 28 Vdc [volt direct current] emergency power supply, provide a visual indication of the aircraft flight attitude. The attitude reference system is designed to provide a standby attitude indicator that is powered by a source independent of the aircraft electrical generating system. The system will provide reliable attitude information for at least 30 minutes after a total failure of the aircraft electrical system.

CONT

... these functions were provided by three different instruments known as the standby altimeter, the standby anemometer and the standby horizon. These three instruments had their own array of sensors so that they were completely self-contained in the event of any serious breakdown of the main displays or instruments.

CONT

A primary goal of the current product is to perform as an emergency horizon in the event the primary flight display of the aircraft fails.

Key term(s)
  • stand-by attitude indicator
  • stand-by horizon indicator
  • stand-by attitude reference system

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
CONT

[...] l'indicateur d'assiette de secours doit : a) être alimenté indépendamment de la source principale d'alimentation électrique; b) continuer à fonctionner sans intervention humaine après une panne électrique générale; c) fonctionner avec précision pendant au moins 30 minutes après une panne électrique générale; d) fonctionner indépendemment de tout système indicateur d'assiette; [...]

OBS

horizon de secours : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes.

Spanish

Campo(s) temático(s)
  • Instrumentos y equipo de vuelo (Industria aeronáutica)
  • Pilotaje y navegación aérea
Save record 2

Record 3 2016-03-09

English

Subject field(s)
  • Noise Pollution
CONT

An individual' s frame of mind and attitude towards a sound source also plays a role in determining the annoyance level of any given noise.

French

Domaine(s)
  • Pollution par le bruit
CONT

Evaluation de la gêne. On part d'un niveau de référence (...) en dB(A), supposé correspondre à un niveau de gêne nulle; (...)

OBS

Evaluation des effets du bruit sur l'homme. Critères de gêne et de nuisance. (...) Lorsque les niveaux sonores sont relativement faibles, mais perturbent l'activité de ceux qui les subissent, on dira qu'il y a gêne. Lorsque les niveaux sonores sont tels qu'à leur action psychologique se superpose une action physiologique néfaste à l'organisme humain, on dira qu'il y a nuisance.

Spanish

Save record 3

Record 4 2007-02-05

English

Subject field(s)
  • Spacecraft
  • Applications of Electronics
  • Aircraft Piloting and Navigation
DEF

A radiometer or other sensor that is used to align or control the axis of a spacecraft, missile, or satellite with the apparent horizon of the Earth or of any other astronomical body.

CONT

Horizon sensors [are] the primary means for directly determining the attitude of a spacecraft relative to the Earth... The attitude of spacecraft relative to Earth is one of the most important aspects of attitude determination and control, particularly for communications(TDRSS), weather(GOES), Earth resources(LANDSAT), satellites, etc. Earth cannot be treated as a point source like the Sun, especially for near Earth satellites for which Earth covers about 40% of the sky. Therefore, merely detecting the Earth is by no means sufficient for attitude determination, even for the most crude attitude determination requirements. Hence most sensors are designed to detect the Earth's horizon. Horizon sensors are infrared devices that detect the contrast of the cold of space and the warmth of the Earth(or other body).

CONT

Typically there are four basic components in a horizon sensor: a scanning mechanism, optical system, radiance detector, and signal processing electronics.

OBS

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

Key term(s)
  • infra red horizon sensor

French

Domaine(s)
  • Engins spatiaux
  • Applications de l'électronique
  • Pilotage et navigation aérienne
DEF

Scanneur mécanique à détecteurs électro-optiques montés de façon à repérer l'horizon terrestre.

CONT

Garde-cap. Il s'agit d'un gyroscope que l'on maintient horizontal et qui définit une direction fixe dans le plan horizontal à sa dérive près. Le gyroscope est monté à la Cardan comme dans le cas du compas mais il n'est pas balourdé. Un détecteur d'horizon monté sur la caisse de tore délivre un signal proportionnel à l'inclinaison du moment cinétique; ce signal est traité et est envoyé dans un moteur couple d'axe ce qui crée un couple vertical ramenant le moment cinétique horizontal.

CONT

[...] un système de contrôle d'attitude et d'orbite qui comprend : [...] un capteur optique 2-axes qui peut détecter soit la Terre (typiquement capteur d'horizon Infra-Rouge) soit l'Étoile Polaire (typiquement capteur à matrice CCD).

OBS

capteur d'horizon : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Save record 4

Record 5 2002-07-16

English

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

Commerce Control List-Numerical Indexes... "Source code" for the "use" of any inertial navigation equipment or Attitude and Heading Reference Systems(AHRS)(except gimbaled AHRS) including inertial equipment not controlled by 7A003 or 7A004.

OBS

gimballed.

OBS

gimbaled

Key term(s)
  • gimballed AHRS
  • gimballed attitude and heading reference system

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation
CONT

Une centrale moderne d'attitude et de cap [...] ressemble beaucoup à une centrale inertielle de navigation qui ne fournirait que les assiettes et le cap, et dont les gyroscopes et les accéléromètres seraient de performances modestes : 1 à 10 degrés par heure pour les gyroscopes et quelques millièmes de la pesanteur pour les accéléromètres. La centrale d'attitude et de cap peut être à cardans ou à composants liés [...] et utiliser des gyroscopes mécaniques ou des gyrolasers.

Spanish

Save record 5

Record 6 2001-10-17

English

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

In its simplest form, an inertial navigation system(INS) consists of an inertial measurement unit(IMU), the navigation computer, and a computer interface. Therefore, the inertial navigation system aboard an aircraft provides, through self-contained equipment, aircraft acceleration, velocity, position, attitude, and heading to the onboard navigation computer and other aircraft subsystems... For certain operations and/or missions... dual or triple redundant inertial navigation systems are required... In a dual INS configuration... as long as either inertial navigation system is providing valid data, its output can be used as the primary reference source for the navigation subsystem.

Key term(s)
  • dual redundant INS

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation
OBS

Le Grippen dispose d'un système de commande de vol électrique digitale à triple redondance et d'une centrale inertielle Honeywell.

Spanish

Save record 6

Record 7 2001-10-17

English

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

In its simplest form, an inertial navigation system(INS) consists of an inertial measurement unit(IMU), the navigation computer, and a computer interface. Therefore, the inertial navigation system aboard an aircraft provides, through self-contained equipment, aircraft acceleration, velocity, position, attitude, and heading to the onboard navigation computer and other aircraft subsystems... For certain operations and/or missions... dual or triple redundant inertial navigation systems are required.... In a dual INS configuration... as long as either inertial navigation system is providing valid data, its output can be used as the primary reference source for the navigation subsystem.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation
OBS

Le Grippen dispose d'un système de commande de vol électrique digitale à triple redondance et d'une centrale inertielle Honeywell.

Spanish

Save record 7

Record 8 2001-06-21

English

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

In its simplest form, an inertial navigation system(INS) consists of an inertial measurement unit(IMU), the navigation computer, and a computer interface. Therefore, the inertial navigation system aboard an aircraft provides, through self-contained equipment, aircraft acceleration, velocity, position, attitude, and heading to the onboard navigation computer and other aircraft subsystems... For certain operations and/or missions... dual or triple redundant inertial navigation systems are required... In a dual INS configuration... as long as either inertial navigation system is providing valid data, its output can be used as the primary reference source for the navigation subsystem.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation
OBS

Le Grippen dispose d'un système de commande de vol électrique digitale à triple redondance et d'une centrale inertielle Honeywell.

Spanish

Save record 8

Record 9 1992-03-31

English

Subject field(s)
  • Corporate Structure
DEF

either power structure based on the technical managers who have graduated from the polytechnics, or power structure based on technocrats of diverse origine.

CONT

As always it's the poor and the working class who suffer the brunt of the patronizing attitude and the limitations on their freedom of choice. The rich will always be free. There was a time when working people listened and deferred to the middle-class teachers and preachers. They have now thrown off those shackles. They won’t allow them to be replaced by the new polytechnocracy, whatever its politics.(Source : The Times(London), 26 Sept. 1987, p. 8).

OBS

blend from poly(technic) + technocracy. Creation facilitated by the common element "Tech".

French

Domaine(s)
  • Structures de l'entreprise

Spanish

Save record 9

Record 10 1981-02-25

English

Subject field(s)
  • Social Psychology
OBS

An approach to attitude formation and change that simultaneously considers the source, the content, and the recipient of the message.

French

Domaine(s)
  • Psychologie sociale

Spanish

Save record 10

Record 11 1980-08-12

English

Subject field(s)
  • Aeroindustry
CONT

The... switchlight is used by the copilot to select either INS No. 2 or the standby attitude indicator as the source of pitch and roll attitude to the flight director computer... and copilot's FDI sphere.

French

Domaine(s)
  • Constructions aéronautiques
CONT

Sur les avions de ligne on répétera [...] les informations principales : altitude, vitesse, etc. sur les planches pilote et copilote. Poussant plus loin la sécurité, on cherchera à ce que ces informations soient le plus indépendantes possibles : centrales anémométriques distinctes, sources de cap ou d'assiette distinctes.

Spanish

Save record 11

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