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GYRO NOISE [4 records]
Record 1 - internal organization data 2002-07-16
Record 1, English
Record 1, Subject field(s)
- Metrology and Units of Measure
- Astrophysics and Cosmography
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 1, Main entry term, English
- arc second
1, record 1, English, arc%20second
correct
Record 1, Abbreviations, English
- arcsec 2, record 1, English, arcsec
correct
Record 1, Synonyms, English
- arc-second 3, record 1, English, arc%2Dsecond
correct
- second of arc 4, record 1, English, second%20of%20arc
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A unit of angular measure in which there are 60 arc seconds in 1 arc minute and therefore 3600 arc seconds in 1 arc degree. One arc second is equal to about 725 km on the Sun. 5, record 1, English, - arc%20second
Record number: 1, Textual support number: 1 CONT
... this new RLG INU [ring laser gyro inertial navigation unit]... provides navigation performance well within the Air Force Standard Navigator requirements for a strapdown system. The new design expands upon F-15 and Air Force Standard Navigator INU technology. A number of techniques were employed to achieve superior performance. The sensor assembly was redesigned to increase stiffness and reduce coning characteristics. Filtering algorithms were redesigned to reduce noise under 2. 5 arc seconds. 6, record 1, English, - arc%20second
Record 1, French
Record 1, Domaine(s)
- Unités de mesure et métrologie
- Astrophysique et cosmographie
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 1, Main entry term, French
- seconde d'arc
1, record 1, French, seconde%20d%27arc
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
En plus de permettre d'atteindre et de maintenir une orbite inhabituelle, le système de contrôle d'altitude et d'orbite doit satisfaire à des exigences de pointage extrêmement sévères, à la fois à court et à long terme : une seconde d'arc sur quinze minutes, et dix secondes d'arc sur six mois. Le satellite est conçu de manière à garantir l'extrême stabilité thermique du module de charge utile nécessaire, afin de maintenir la stabilité de pointage. 2, record 1, French, - seconde%20d%27arc
Record number: 1, Textual support number: 2 CONT
Chaque impulsion représente un déplacement angulaire instantané (un incrément d'angle). L'ordre de grandeur de l'incrément d'un gyrolaser de périmètre 30 cm est d'une seconde d'arc. 3, record 1, French, - seconde%20d%27arc
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2002-07-16
Record 2, English
Record 2, Subject field(s)
- Optics
- Measuring Instruments (Engineering)
- Navigation Instruments
Record 2, Main entry term, English
- gyro's perimeter
1, record 2, English, gyro%27s%20perimeter
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- perimeter of the gyroscope 1, record 2, English, perimeter%20of%20the%20gyroscope
correct
- optical perimeter 2, record 2, English, optical%20perimeter
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
On the left, a standard measure of gyro sensitivity is used : the factor by which the Earth rotation effect is greater than that from quantum(photon) noise over one hour. This is a big factor(the graph is coloured relatively "hot"), and on that basis the results we obtained at Cashmere from the C-II gyro indicate that on this criterion it is more sensitive than all others, such a reported atomic gyros. Note that the perimeter is important, and the mirror finesse also, though less so. 3, record 2, English, - gyro%27s%20perimeter
Record 2, Key term(s)
- gyroscope perimeter
- perimeter of the gyro
Record 2, French
Record 2, Domaine(s)
- Optique
- Instruments de mesure (Ingénierie)
- Instruments de navigation
Record 2, Main entry term, French
- périmètre du gyroscope
1, record 2, French, p%C3%A9rim%C3%A8tre%20du%20gyroscope
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- périmètre optique 1, record 2, French, p%C3%A9rim%C3%A8tre%20optique
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
La Sagem intègre dans ses systèmes de guidage et de navigation trois types de gyrolaser de classe inertielle, de périmètre 8, 16 et 32 cm. Les appareils fournissent directement une information d'angle sous forme d'incréments. L'incrément d'angle est fonction de la longueur d'onde optique et du périmètre du gyroscope. 1, record 2, French, - p%C3%A9rim%C3%A8tre%20du%20gyroscope
Record number: 2, Textual support number: 2 CONT
Gyromètre laser triaxe Sextant avionique PIXYZ 14 [...] avec les caractéristiques suivantes : périmètre optique : 14 cm; [...] 1, record 2, French, - p%C3%A9rim%C3%A8tre%20du%20gyroscope
Record 2, Key term(s)
- périmètre
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2001-08-23
Record 3, English
Record 3, Subject field(s)
- Mathematics
- Measuring Instruments (Engineering)
- Navigation Instruments
Record 3, Main entry term, English
- angular increment
1, record 3, English, angular%20increment
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Positioning of the SOFIA telescope is based on spherical sensors(position sensitive devices, PSDs), located at the bearing, and an high resolution inertial three laser gyro system, which is updated regularly by the focal plane tracker camera. The gyros were specially developed for SOFIA to provide extremely low drift rates and noise. Each of them includes 3km of glass fiber providing an angular increment of 0. 0008". 2, record 3, English, - angular%20increment
Record 3, French
Record 3, Domaine(s)
- Mathématiques
- Instruments de mesure (Ingénierie)
- Instruments de navigation
Record 3, Main entry term, French
- incrément d'angle
1, record 3, French, incr%C3%A9ment%20d%27angle
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- incrément angulaire 2, record 3, French, incr%C3%A9ment%20angulaire
correct, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
La Sagem intègre dans ses systèmes de guidage et de navigation trois types de gyrolaser de classe inertielle, de périmètre 8, 16 et 32 cm. Les appareils fournissent directement une information d'angle sous forme d'incréments. L'incrément d'angle est fonction de la longueur d'onde optique et du périmètre du gyroscope. 3, record 3, French, - incr%C3%A9ment%20d%27angle
Record number: 3, Textual support number: 2 CONT
On peut distinguer plusieurs systèmes laser scanner : les systèmes composés de plusieurs télémètres laser émettant chacun un faisceau dans une direction particulière de sorte que l'incrément angulaire soit constant entre deux faisceaux, dans ce cas chaque bande de mesure est composée d'un certain nombre de profils parallèles [...] 4, record 3, French, - incr%C3%A9ment%20d%27angle
Record 3, Key term(s)
- incrément
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2001-06-21
Record 4, English
Record 4, Subject field(s)
- Optics
- Flight Instruments and Equipment (Aeroindustry)
Record 4, Main entry term, English
- gyro noise
1, record 4, English, gyro%20noise
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
[Ring laser gyro] Gyro noise has many causes, thus there are a large number of ways to specify gyro noise and model its effect. The most basic model for gyro noise is a random constant or bias. The random bias can be modeled in the same way the null-shift bias is modeled, and the two effects can be added together. Gyro noise may also be modeled as a random walk(i. e., integrated white noise). 1, record 4, English, - gyro%20noise
Record 4, Key term(s)
- gyroscope noise
Record 4, French
Record 4, Domaine(s)
- Optique
- Instruments et équipement de bord (Constructions aéronautiques)
Record 4, Main entry term, French
- bruit des gyroscopes
1, record 4, French, bruit%20des%20gyroscopes
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Modélisation de l'attitude du satellite. Afin de tester les méthodes de restitution de la ligne de visée, nous sommes amenés à utiliser un modèle simplifié d'attitude de cette ligne de visée. Ce modèle est sensé être représentatif des éléments perturbateurs suivants : - Panneaux solaires : moteurs d'entraînement et réponse à une excitation - Actuateurs d'attitude : roues à inertie, roues gyroscopiques - Bruit des gyroscopes - Stabilité d'un miroir de changement de visée. 1, record 4, French, - bruit%20des%20gyroscopes
Record 4, Key term(s)
- bruit d'un gyroscope
Record 4, Spanish
Record 4, Textual support, Spanish
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