TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 OBS

A type of tank attitude sensor.  3, record 1, English, - tank%20movement%20detector

Record number: 1, Textual support number: 2 OBS

In the Canadian Forces, this concept is considered obsolete.  4, record 1, English, - tank%20movement%20detector

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

Type de capteur d'assiette.  1, record 1, French, - capteur%20de%20mouvement%20de%20char

Record number: 1, Textual support number: 2 OBS

Dans les Forces canadiennes, cette notion est considérée comme désuète.  3, record 1, French, - capteur%20de%20mouvement%20de%20char

Record number: 1, Textual support number: 3 OBS

capteur de mouvement du char : désignation uniformisée par le Comité de terminologie française du Conseil de doctrine et de tactique de l'Armée de terre.  3, record 1, French, - capteur%20de%20mouvement%20de%20char

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

In the bob-up manoeuvre, Smith explained that information from the Doppler, the HARS(Heading and Attitude Reference System) and air data sensor are fed to the computer, which then maintains the hover in an eight-foot square and gives a velocity vector.  1, record 2, English, - bob%2Dup%20manoeuvre

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

... gyros and accelerometers have an offset, known as bias. The gyro bias for instance, shows itself after integration as an angular drift, increasing rise linearly over time(ramp)... To compensate for sensor drift, a process called augmentation is used, whereby gyro and acceleration errors are compensated by utilising other system states. For instance the angular drift error of a gyro after integration can be compensated, if true angular measurements are taken. Comparing the two shows then the gyro drift. Assuming that inertial systems are generally operated around an equilibrium position and thus linear acceleration integrates to zero over time, then attitude can be processed via gravitational acceleration, thus giving true angular measurements to compensate gyro drift.  1, record 3, English, - angular%20drift

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

[...] il est possible de réaliser des capteurs gyrométriques dont les performances sont caractérisées par une erreur de facteur d'échelle pouvant être inférieure à 10^-6, une dérive angulaire de l'ordre de quelques millièmes de degré par heure, pendant quelques heures, un domaine de mesure pouvant dépasser 360 degrés par seconde. Ces caractéristiques ont notamment autorisé la réalisation de navigateurs inertiels (sans plate-forme stabilisée) destinés aux avions civils et militaires ainsi qu'à des lanceurs spatiaux comme Ariane IV et V.  1, record 3, French, - d%C3%A9rive%20angulaire

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Attitude Sensor. The TSS POS/MV(Position and Orientation Systems for Marine Vessels) is an inertial navigation system delivering full 6 degree-of-freedom position and orientation systems for ships. It combines data from an inertial unit made up of three acceleration meters and three gyrolasers(fibre optic gyroscopes) and two GPS antennas. It delivers the following data with a sampling frequency of 1-200 Hz : roll and pitch(accurate to 0. 02°) ;heave(accurate to 5% amplitude) ;true heading(accurate to 0. 1°).  1, record 4, English, - attitude%20sensor

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Ensemble des appareils servant à déterminer et à contrôler l'orientation d'un véhicule spatial.  4, record 4, French, - centrale%20d%27attitude

Record number: 4, Textual support number: 1 CONT

Des gyroscopes mécaniques à suspension dynamique, très utilisés dans les centrales à cardans, peuvent également être montés sur une centrale à composants liés, de performances plus modestes, comme une centrale d'attitude. Il s'agit d'instruments électromécaniques à masse tournante entraînée en rotation par un moteur électrique au travers d'un joint flexible qui laisse au rotor toute liberté angulaire dans les directions perpendiculaires à l'axe de rotation.  5, record 4, French, - centrale%20d%27attitude

Record number: 4, Textual support number: 2 CONT

Centrales d'attitude. La centrale TSS POS/MV (Position and Orientation Systems for Marine Vessels) désigne un système de navigation inertielle qui procure des solutions d'orientation et de positionnement à six degrés de liberté pour les navires. Elle combine les informations provenant d'une centrale inertielle constituée de trois accéléromètres et trois gyrolasers (gyroscopes à fibres optiques) et de deux antennes GPS. Elle délivre avec une fréquence d'échantillonnage 1-200 Hz les informations suivantes : roulis et tangage (précision 0.02°); pilonnement (précision 5 % de l'amplitude); cap (précision 0.1°).  6, record 4, French, - centrale%20d%27attitude

Record number: 4, Textual support number: 1 OBS

centrale d'orientation : terme publié au Journal officiel de la République française le 22 septembre 2000.  7, record 4, French, - centrale%20d%27attitude

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Three Axis Magnetometer [-] TAM... Redundant TAMs are provided to sense the local strength and direction of the Earth's magnetic field. Each TAM consists of a sensor and a separately packaged electronics unit. The analog outputs provided by the TAM allow for sensing magnetic field data in three orthogonal axes. TAM-Operation Once the TAM is powered there will be no ground interactions necessary. The TAM data is used by the FSW ACS [Flight Software Attitude Control Subsystem routine to determine the local magnetic field when reaction wheel momentum unloading is deemed necessary via the magnetic torque rods [Landsat].  3, record 5, English, - three%20axis%20magnetometer

Record number: 5, Textual support number: 1 OBS

three axis magnetometer; CAM: term and abbreviation officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  4, record 5, English, - three%20axis%20magnetometer

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

On peut mesurer ainsi l'intensité d'un champ magnétique axial. Certains magnétomètres plus sophistiqués peuvent mesurer un champ global selon ses 3 axes x, y et z. On parle alors de magnétomètre triaxial.  2, record 5, French, - magn%C3%A9tom%C3%A8tre%20triaxial

Record number: 5, Textual support number: 1 OBS

magnétomètre triaxial : terme uniformisé par le Groupe de travail de la terminologie de Radarsat-2 (GTTR0).  3, record 5, French, - magn%C3%A9tom%C3%A8tre%20triaxial

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

Stabilisation. This stage will start automatically upon detection of the spacecraft separation from the launch vehicle. Spacecraft initialisation consists of switching on sensors : GPS, Magnetometer, Gyro and Sun Sensor. At launcher release, the spacecraft will autonomously recognise its angular rate, damp it and acquire controlled attitude. Upon success of de-spin and first sun acquisition, RADARSAT-2 will start to acquire a coarse stable 3-axes attitude. This process should take 2-3 orbits.  2, record 6, English, - stabilisation

Record number: 6, Textual support number: 1 OBS

stabilisation: term officially approved by the RADARSAT-2 TerminologyApproval Group (RTAG).  3, record 6, English, - stabilisation

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

Stabilisation. Cette étape débutera automatiquement lors de la détection de la séparation du satellite et du véhicule de lancement. L'initialisation du satellite consiste à allumer les capteurs tels le GPS, le magnétomètre, le gyro et le capteur solaire. Lors de la séparation, le satellite reconnaîtra automatiquement sa vitesse angulaire et l'amortira pour atteindre ensuite une attitude contrôlée. À la suite de l'arrêt de rotation et de la première acquisition solaire, RADARSAT-2 débutera l'acquisition d'une attitude stable sur trois axes. L'ensemble du processus devrait durer environ de 2 à 3 orbites.  2, record 6, French, - stabilisation

Record number: 6, Textual support number: 1 OBS

stabilisation : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  2, record 6, French, - stabilisation

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

The Attitude Sensor Package(ASP), mounted in the cargo bay, will demonstrate three new spacecraft attitude sensors in order to establish confidence in their accuracy and functional performance. The three sensors use various techniques including star tracking, Earth limb/deep space temperature differences, and velocity vector measurement.  3, record 7, English, - attitude%20sensor%20package

Record 7,  Textual support,  French

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

Attitude control sensors and actuators are monitored by a common electronic unit(the Attitude Sensor Electronics, or ASE), in charge in particular of attitude anomaly detection, and safe mode implementation.  2, record 8, English, - attitude%20sensor%20electronics

Record 8,  Textual support,  French

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

A small, specially-marked satellite, the Canadian Target Assembly(CTA) was deployed on flight day nine to support SVS [Space Vision System]. Also in cargo bay, the Attitude Sensor Package, featuring three European Space Agency independent sensors mounted on a Hitchhiker plate in cargo bay : Modular Star Sensor, Yaw Earth Sensor and Low Altitude Conical Earth Sensor, and the Tank Pressure Control Experiment/Thermal Phenomena(TPCE/TP), contained in a Get Away Special(GAS) canister.  2, record 9, English, - yaw%20Earth%20sensor

Record 9,  Textual support,  French

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 CONT

The Conical Earth Sensor(CES) is a scanning horizon sensor used to gather attitude information on orbiting spacecraft. The most common application utilizes one or more CESs to provide pitch and roll attitude data for 3-axis stabilized orbiting spacecraft. The CES, a robust and a versatile sensor, can be used from low Earth orbit to above geosynchronous orbits, as well as during transfer orbits.  2, record 10, English, - scanning%20horizon%20sensor

Record 10,  Textual support,  French

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 CONT

Accurate positioning of the aircraft is essential during image acquisition. Accuracy of ± 1 m is achieved using a DGPS. Downelling irradiance is recorded so as to take into account the space-time variations in the solar altitude and the transparency of the atmosphere that occurs during image acquisition. A gyroscopic sensor records the data needed to correct the geometric distortions of the images. These distortions are due to variations in the attitude of the aircraft(essentially the roll). The ground resolution depends on the altitude from which the images are collected.  1, record 11, English, - gyroscopic%20sensor

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 CONT

Car Navigation. Ce système peut localiser l'endroit précis où vous vous trouvez grâce au système mondial de localisation GPS, à un capteur gyroscopique intégré et à un indicateur de vitesse à étalonnage automatique. Le système de navigation mobile se sert de techniques de pointe pour déterminer votre emplacement exact sur la carte.  2, record 11, French, - capteur%20gyroscopique

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 CONT

The on-orbit Attitude Determination and Control Subsystem(ADACS) provides three axis pointing control for the satellite. The ADACS maintains system pointing by controlling torque in three mutually orthogonal wheels. The torque is determined by analysis of spacecraft orientation in space. Input to these computations are acquired from the Earth Sensor Assembly(ESA) for pitch and roll, and an inertial reference with sun sensor updates for yaw.  2, record 12, English, - inertial%20reference

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 CONT

Ce chapitre concerne l'étude fine d'un gyroscope [...], monté à 3 degrés de liberté [...] grâce à 2 armatures de Cardan. L'appareil est «le passager» d'une plate-forme stabilisée [...], d'orientation fixe dans un repère inertiel. I Description du montage : 1°) La plate-forme : [...] est un solide [...], emporté dans un véhicule (avion, sous marin, lanceur etc...), et conservant une orientation fixe par rapport à un repère inertiel. Ce qui ne veut pas dire que [la plate-forme stabilisée] est en translation uniforme, simplement en translation quelconque, avec accélération et vitesse.  3, record 12, French, - r%C3%A9f%C3%A9rence%20inertielle

Record number: 12, Textual support number: 2 CONT

Équipement de navigation. Ce type d'équipement guide l'aéronef vers son lieu de destination et intègre de nombreux produits tels que les systèmes de positionnement mondial [(...] GPS), la centrale anémobarométrique, qui calcule la vitesse aérodynamique, l'altitude et la vitesse verticale de l'appareil, les IRS («Inertial Reference System» - systèmes de référence inertielle) - qui sont les principaux capteurs de mouvement et de navigation de la cellule utilisés par un nombre très élevé de systèmes avioniques [...]  4, record 12, French, - r%C3%A9f%C3%A9rence%20inertielle

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

The basic attitude sensor was the three-gyro inertial reference package. It contained two air-tight integrating gyro units to sense pitch and yaw, and one miniature integrating gyro unit to sense roll. The pitch and roll gyros were torqued by signals obtained by two Barnes mod IIA infrared horizon sensors. Gyrocompassing oriented the vehicle to an orbit plane yaw reference by detecting a component of the programmed pitch rate through the roll horizon sensor. The geocentric pitch rate(typically 4 deg/min, for a low-altitude orbit) was programmed as a constant torque to the pitch gyro. This pitch component, if a yaw error was present, would be sensed differentially when compared with the roll components of the two horizon-sensor heads. The differential would be seen as a function of yaw error.  2, record 13, English, - roll%20component

Record number: 13, Textual support number: 2 CONT

During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled.  1, record 13, English, - roll%20component

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 CONT

Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés.  2, record 13, French, - composante%20en%20roulis

Record number: 13, Textual support number: 2 CONT

Il s'agit de la rotation galiléenne mais [...] la rotation à annuler quand on souhaite obtenir un pointage Terre parfait est la rotation relative au repère orbital de composantes en roulis, tangage et lacet.  1, record 13, French, - composante%20en%20roulis

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 CONT

The basic attitude sensor was the three-gyro inertial reference package. It contained two air-tight integrating gyro units to sense pitch and yaw, and one miniature integrating gyro unit to sense roll. The pitch and roll gyros were torqued by signals obtained by two Barnes mod IIA infrared horizon sensors. Gyrocompassing oriented the vehicle to an orbit plane yaw reference by detecting a component of the programmed pitch rate through the roll horizon sensor. The geocentric pitch rate(typically 4 deg/min, for a low-altitude orbit) was programmed as a constant torque to the pitch gyro. This pitch component, if a yaw error was present, would be sensed differentially when compared with the roll components of the two horizon-sensor heads. The differential would be seen as a function of yaw error.  2, record 14, English, - pitch%20component

Record number: 14, Textual support number: 2 CONT

During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled.  3, record 14, English, - pitch%20component

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 CONT

Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés.  2, record 14, French, - composante%20en%20tangage

Record number: 14, Textual support number: 2 CONT

[...] il s'agit de la rotation galiléenne mais [...] la rotation à annuler quand on souhaite obtenir un pointage Terre parfait est la rotation relative au repère orbital de composantes en roulis, tangage et lacet.  1, record 14, French, - composante%20en%20tangage

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 CONT

floated gyroscope... Because of the requirement that the allowable rotation angle be small (on the order of an arc-second), an electrical torquer is used to maintain the float fixed relative to the case; it is the current to the torquer that is used as the measure of angular rotation of the gyro and hence of the vehicle to which it is attached.  1, record 15, English, - electrical%20torquer

Record number: 15, Textual support number: 2 CONT

Attitude gyros, technically called vertical gyros because of the orientation of their spin axis, do precess, but correction is applied automatically. All attitude gyros have an automatic erection system that drives the gyro back to vertical when it precesses. The erection system detects gravity by means of a pendulous sensor that in turn opens air blast vanes on an air-driven gyro or powers electric torquer motors to drive the gyro back to vertical when it precesses.  3, record 15, English, - electrical%20torquer

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 OBS

Générateur de couple / torquer.  2, record 15, French, - g%C3%A9n%C3%A9rateur%20de%20couple%20%C3%A9lectrique

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 DEF

A position, attitude, or motion sensor whose references are completely internal, except possibly for initialization.  2, record 16, English, - inertial%20sensor

Record number: 16, Textual support number: 1 CONT

Inertial sensors (gyroscopes and accelerometers) are used to obtain information on orientation and accelerations relative to a reference frame in which Newton’s laws are valid. Orientation or attitude measurements obtained by gyroscopes provide angular information, while acceleration measurements, which are corrected for gravity and, integrated twice for distance, provide linear information.  3, record 16, English, - inertial%20sensor

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 CONT

Les gyroscopes ont passablement évolué. Leur miniaturisation a progressé grâce à la découverte de propriétés vibratoires ou optiques permettant la détermination de la vitesse angulaire. Les systèmes inertiels ne dépendent plus des qualités mécaniques de cardans, mais sont fixés solidairement au véhicule. On parle ainsi de «systèmes strapdown». Le gyroscope n'a plus pour mission de conserver une direction fixe. Les vitesses angulaires mesurées sont intégrées pour connaître l'orientation spatiale. Les processeurs ont en quelque sorte remplacé les cardans. Cette évolution a considérablement simplifié les systèmes capteurs inertiels et donc réduit les prix des systèmes.  5, record 16, French, - capteur%20inertiel

Record number: 16, Textual support number: 1 OBS

détecteur inertiel : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes.  6, record 16, French, - capteur%20inertiel

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

A tank attitude sensor which generates an electrical signal when a moving target is tracked.  1, record 17, English, - angular%20speed%20sensor

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 DEF

Capteur générant un signal électrique lorsqu'on suit un objectif mobile.  1, record 17, French, - capteur%20de%20vitesse%20angulaire

Record number: 17, Textual support number: 1 OBS

S'applique au LEOPARD.  2, record 17, French, - capteur%20de%20vitesse%20angulaire

Record number: 17, Textual support number: 2 OBS

capteur de vitesse angulaire : terme et définition uniformisés par le Comité de terminologie française du Conseil de doctrine et de tactique de l'Armée de terre.  2, record 17, French, - capteur%20de%20vitesse%20angulaire

Record 17,  Textual support,  Spanish