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NULL SIGNAL [11 records]
Record 1 - internal organization data 2010-07-23
Record 1, English
Record 1, Subject field(s)
- Applications of Electronics
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 1, Main entry term, English
- output signal generator
1, record 1, English, output%20signal%20generator
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- output signal generator of the gyroscope 1, record 1, English, output%20signal%20generator%20of%20the%20gyroscope
correct
- gyroscope output signal generator 2, record 1, English, gyroscope%20output%20signal%20generator
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The single-axis inertial platform... The angular motions of the controlled member are sensed by the single-axis gyro. The output signal of the gyro is electronically processed and fed to the torque motor(TM) of the stable element and to the torque generator(TG) of the gyro. The problem is to determine how to do the electronic processing so that the controlled member maintains its orientation in spite of disturbances. The voltage across the output signal generator(SG) of the gyroscope is proportional to the integral of the angular velocity of the controlled member about the gyroscope's input axis. Consequently, this signal is fed to an amplifier and then to a motor, which drives the controlled member in the proper direction to null the ouptut of the gyroscope. 1, record 1, English, - output%20signal%20generator
Record number: 1, Textual support number: 1 OBS
signal generator: A source of electrical signals, whose characteristics, e.g. waveform, frequency, voltage, etc. can be fixed or controlled within specified limits. 3, record 1, English, - output%20signal%20generator
Record 1, Key term(s)
- output SG
Record 1, French
Record 1, Domaine(s)
- Applications de l'électronique
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 1, Main entry term, French
- générateur du signal de sortie
1, record 1, French, g%C3%A9n%C3%A9rateur%20du%20signal%20de%20sortie
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- générateur du signal de sortie du gyroscope 1, record 1, French, g%C3%A9n%C3%A9rateur%20du%20signal%20de%20sortie%20du%20gyroscope
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
générateur de signaux : Source de signaux électriques dont les caractéristiques (forme d'onde, fréquence, tension, etc.) peuvent être réglées à des valeurs fixes, ou à des valeurs variables dans des limites spécifiées. 2, record 1, French, - g%C3%A9n%C3%A9rateur%20du%20signal%20de%20sortie
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2004-02-17
Record 2, English
Record 2, Subject field(s)
- Mechanical Transmission Systems
Record 2, Main entry term, English
- threshold
1, record 2, English, threshold
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The change of input signal required to produce a reversal in valve output at null expressed as a percentage of rated signal. 2, record 2, English, - threshold
Record 2, French
Record 2, Domaine(s)
- Transmissions mécaniques
Record 2, Main entry term, French
- seuil
1, record 2, French, seuil
correct
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Variation du signal d'entrée nécessaire pour produire une inversion de la grandeur de sortie de l'appareil en position zéro exprimée en pourcentage du signal nominal. 2, record 2, French, - seuil
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Sistemas de transmisión mecánica
Record 2, Main entry term, Spanish
- umbral
1, record 2, Spanish, umbral
masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2003-11-21
Record 3, English
Record 3, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 3, Main entry term, English
- spin axis
1, record 3, English, spin%20axis
correct
Record 3, Abbreviations, English
- SA 2, record 3, English, SA
correct
Record 3, Synonyms, English
- rotation axis 3, record 3, English, rotation%20axis
correct
- spin axle 4, record 3, English, spin%20axle
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The axis of rotation of the [gyro] rotor. 2, record 3, English, - spin%20axis
Record number: 3, Textual support number: 1 CONT
A gyroscope has three sensitive axes of interest. These are(1) spin reference axis,(2) input axis(IA), and(3) output axis(OA). The spin reference axis is the position of the spin axis at its null position as indicated by a pickoff null signal. 5, record 3, English, - spin%20axis
Record number: 3, Textual support number: 2 CONT
Gyroscope ... The wheel is found to precess slowly, not about the axis of the applied torque, but instead about an axis perpendicular to it (and also perpendicular to the spin axle). 6, record 3, English, - spin%20axis
Record 3, French
Record 3, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 3, Main entry term, French
- axe de spin
1, record 3, French, axe%20de%20spin
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- axe de rotation de la toupie 2, record 3, French, axe%20de%20rotation%20de%20la%20toupie
correct, masculine noun
- axe de révolution 3, record 3, French, axe%20de%20r%C3%A9volution
correct, masculine noun
- axe de rotation 4, record 3, French, axe%20de%20rotation
correct, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Les Gyroscopes. Ce sont des appareils capables de mesurer la vitesse de rotation absolue de Chandra selon deux axes différents, et dont le fonctionnement repose sur l'utilisation d'une toupie gyroscopique; celle-ci, animée d'une vitesse de rotation élevée (plusieurs milliers de tours par minute), possède une «rigidité inertielle» qui la maintient selon une direction fixe : si l'on applique un couple (une force qui tend à mettre un solide en rotation) sur l'axe de rotation de la toupie, celle-ci s'écarte beaucoup moins vite de sa direction initiale que si elle n'était pas animée d'un mouvement de rotation élevée (c'est d'ailleurs pour cette raison de stabilité que les balles des armes à feu sortent du canon en rotation.). 5, record 3, French, - axe%20de%20spin
Record number: 3, Textual support number: 2 CONT
Un gyroscope à 1 axe [...] comprend essentiellement : un boîtier B [...]; un anneau de cardan C [...] relié à B par un axe de cardan S appelé axe de sortie [...]; cet axe peut être matérialisé par un arbre de torsion, par des roulements à billes de haute qualité, par des ensembles pivot-pierre, par un palier hydrostatique; une toupie T reliée à C par un axe [delta] appelé axe de spin [...], perpendiculaire à S [...]; un moteur électrique d'entraînement de la toupie; [...] un détecteur d'écart [...]; un moteur-couple [...] cet appareil présente une sensibilité particulière aux rotations de son boîtier autour de l'axe E, perpendiculaire à S et à [delta], appelé, pour cette raison, axe d'entrée [...]. 6, record 3, French, - axe%20de%20spin
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Mecánica general (Física)
- Pilotaje y navegación aérea
- Instrumentos de navegación
- Instrumentos y equipo de vuelo (Industria aeronáutica)
Record 3, Main entry term, Spanish
- eje de rotación
1, record 3, Spanish, eje%20de%20rotaci%C3%B3n
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2001-08-20
Record 4, English
Record 4, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 4, Main entry term, English
- spin reference axis
1, record 4, English, spin%20reference%20axis
correct
Record 4, Abbreviations, English
- SRA 2, record 4, English, SRA
correct
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
An axis normal to the input reference axis and nominally parallel to the spin axis when the gyro output has a specified value, usually null. 3, record 4, English, - spin%20reference%20axis
Record number: 4, Textual support number: 1 CONT
A gyroscope has three sensitive axes of interest. These are(1) spin reference axis(SRA),(2) input axis(IA), and(3) output axis(OA). The spin reference axis is the position of the spin axis at its null position as indicated by a pickoff null signal. 4, record 4, English, - spin%20reference%20axis
Record 4, French
Record 4, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 4, Main entry term, French
- axe de référence de rotation
1, record 4, French, axe%20de%20r%C3%A9f%C3%A9rence%20de%20rotation
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 OBS
Les gyroscopes. Ce sont des appareils capables de mesurer la vitesse de rotation absolue de Chandra selon deux axes différents, et dont le fonctionnement repose sur l'utilisation d'une toupie gyroscopique; celle-ci, animée d'une vitesse de rotation élevée (plusieurs milliers de tours par minute), possède une «rigidité inertielle» qui la maintient selon une direction fixe : si l'on applique un couple (une force qui tend à mettre un solide en rotation) sur l'axe de rotation de la toupie, celle-ci s'écarte beaucoup moins vite de sa direction initiale que si elle n'était pas animée d'un mouvement de rotation élevée [...] La direction de l'axe de rotation de la toupie représente en fait une direction de référence aisément matérialisable et le principe consiste à estimer les mouvements du télescope par rapport à cette direction de référence. 2, record 4, French, - axe%20de%20r%C3%A9f%C3%A9rence%20de%20rotation
Record 4, Key term(s)
- axe de rotation de référence
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2001-08-13
Record 5, English
Record 5, Subject field(s)
- Applications of Electronics
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 5, Main entry term, English
- gyro pick-off signal
1, record 5, English, gyro%20pick%2Doff%20signal
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
During the first phase of rapid align, the liquid level signal controls the platform pitch erection. However... to avoid a large vertical error when the control of the platform pitch gimbal switches to the pitch pick-off in the second phase of rapid alignment, a phase reversal is required. The phase reversal is designed to keep all of the signal phasing correct while reversing the phase of the gyro pick-off signal. If the phase of the gyro pick-off were not reversed, the combined signals could null with a non-level gimbal and a non-vertical gyro spin axis. With the pick-off reversal, the same type of cancellation occurs but the gyro spin axis is vertical. 1, record 5, English, - gyro%20pick%2Doff%20signal
Record 5, Key term(s)
- gyroscope pick-off signal
- gyro pick-off
Record 5, French
Record 5, Domaine(s)
- Applications de l'électronique
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 5, Main entry term, French
- signal détecteur du gyroscope
1, record 5, French, signal%20d%C3%A9tecteur%20du%20gyroscope
masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- signal détecteur 1, record 5, French, signal%20d%C3%A9tecteur
masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Durant la première phase de l'alignement rapide, le signal du niveau à liquide commande l'érection en tangage de la plate-forme. Cependant, il est nécessaire d'inverser la phase afin d'éviter un signal important d'erreur de verticale lorsque la commande du cardan de tangage de la plate-forme est donnée au détecteur de tangage durant la deuxième phase de l'alignement rapide. Cette inversion de phase est conçue pour garder la mise en phase correcte du signal lorsque la phase du signal détecteur du gyroscope est renversée. Si la phase du signal détecteur du gyroscope n'était pas inversée, les signaux composés pourraient devenir nuls avec un cardan qui ne serait pas correctement en érection et un axe de rotation qui ne serait pas à la verticale. En effectuant l'inversion du signal détecteur, le même genre d'annulation se produit mais l'axe de rotation du gyroscope est à la verticale. 1, record 5, French, - signal%20d%C3%A9tecteur%20du%20gyroscope
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2001-08-13
Record 6, English
Record 6, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 6, Main entry term, English
- pick-off reversal
1, record 6, English, pick%2Doff%20reversal
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
During the first phase of rapid align, the liquid level signal controls the platform pitch erection. However... to avoid a large vertical error when the control of the platform pitch gimbal switches to the pitch pick-off in the second phase of rapid alignment, a phase reversal is required. The phase reversal is designed to keep all of the signal phasing correct while reversing the phase of the gyro pick-off signal. If the phase of the gyro pick-off were not reversed, the combined signals could null with a non-level gimbal and a non-vertical gyro spin axis. With the pick-off reversal, the same type of cancellation occurs but the gyro spin axis is vertical. 1, record 6, English, - pick%2Doff%20reversal
Record 6, Key term(s)
- gyroscope pick-off reversal
- gyro pick-off reversal
Record 6, French
Record 6, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 6, Main entry term, French
- inversion du signal détecteur
1, record 6, French, inversion%20du%20signal%20d%C3%A9tecteur
feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Durant le première phase de l'alignement rapide, le signal du niveau à liquide commande l'érection en tangage de la plate-forme. Cependant, il est nécessaire d'inverser la phase afin d'éviter un signal important d'erreur de verticale lorsque la commande du cardan de tangage de la plate-forme est donnée au détecteur de tangage durant la deuxième phase de l'alignement rapide. Cette inversion de phase est conçue pour garder la mise en phase correcte du signal lorsque la phase du signal détecteur du gyroscope est renversée. Si la phase du signal détecteur du gyroscope n'était pas inversée, les signaux composés pourraient devenir nuls avec un cardan qui ne serait pas correctement en érection et un axe de rotation qui ne serait pas à la verticale. En effectuant l'inversion du signal détecteur, le même genre d'annulation se produit mais l'axe de rotation du gyroscope est à la verticale. 1, record 6, French, - inversion%20du%20signal%20d%C3%A9tecteur
Record 6, Key term(s)
- inversion du signal détecteur du gyroscope
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2001-08-10
Record 7, English
Record 7, Subject field(s)
- Electromagnetism
- Electric Rotary Machines - Types
- Flight Instruments and Equipment (Aeroindustry)
Record 7, Main entry term, English
- torquer function
1, record 7, English, torquer%20function
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
Microsyn.... Pick-off function. The primary windings are excited by a 20V 3. 2 KHz signal. This signal produces an error signal in the secondary windings whenever the armature is not in a null position. Torquer function. A DC [direct current] signal is applied to the primary windings which produces a torque directly proportional to the AC [alternating current] current flow already present in the primary windings. The detection of torque is dependant on the polarity of the applied DC signal. 1, record 7, English, - torquer%20function
Record number: 7, Textual support number: 1 OBS
microsyn: An electromagnetic device often used as a pickoff in single-degree-of-freedom gyros and accelerometers. It has a stator, fastened to the sensor case, containing primary and secondary sets of windings, and a rotor, without windings, that is attached to the float. 2, record 7, English, - torquer%20function
Record 7, French
Record 7, Domaine(s)
- Électromagnétisme
- Machines tournantes électriques - types
- Instruments et équipement de bord (Constructions aéronautiques)
Record 7, Main entry term, French
- fonction de couple
1, record 7, French, fonction%20de%20couple
feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Microsyn [...] Fonction de détection. Fonction de couple. Les bobines primaires sont excitées par un courant de 20 volts à 3.2 KHz et produisant un signal de sortie dans les bobines secondaires [...] à chaque fois que l'armature magnétique n'est pas au point zéro. Une erreur étant détectée, un courant continu alimentera les bobines primaires pour produire un couple dont l'amplitude sera directement proportionnelle au courant alternatif dans les bobines primaires. Le sens du couple dépend de la polarité du signal. 1, record 7, French, - fonction%20de%20couple
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2001-08-10
Record 8, English
Record 8, Subject field(s)
- Applications of Electronics
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 8, Main entry term, English
- pick-off function
1, record 8, English, pick%2Doff%20function
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
Microsyn... Pick-off function. The primary windings are excited by a 20V 3. 2 KHz signal. This signal produces an error signal in the secondary windings whenever the armature is not in a null position. 1, record 8, English, - pick%2Doff%20function
Record number: 8, Textual support number: 1 OBS
microsyn: An electromagnetic device often used as a pickoff in single-degree-of-freedom gyros and accelerometers. It has a stator, fastened to the sensor case, containing primary and secondary sets of windings, and a rotor, without windings, that is attached to the float. 2, record 8, English, - pick%2Doff%20function
Record 8, French
Record 8, Domaine(s)
- Applications de l'électronique
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 8, Main entry term, French
- fonction de détection
1, record 8, French, fonction%20de%20d%C3%A9tection
feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Microsyn [...] Fonction de détection. Les bobines primaires sont excitées par un courant de 20 volts à 3.2 KHz et produisant un signal de sortie dans les bobines secondaires [...] à chaque fois que l'armature magnétique n'est pas au point zéro. 1, record 8, French, - fonction%20de%20d%C3%A9tection
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 1998-09-16
Record 9, English
Record 9, Subject field(s)
- Mechanical Transmission Systems
Record 9, Main entry term, English
- null shift
1, record 9, English, null%20shift
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 DEF
Change in null bias expressed as percent of rated signal. Null shift may occur with changes in supply pressure, temperature and other operating conditions. 1, record 9, English, - null%20shift
Record 9, French
Record 9, Domaine(s)
- Transmissions mécaniques
Record 9, Main entry term, French
- dérive du zéro
1, record 9, French, d%C3%A9rive%20du%20z%C3%A9ro
correct, feminine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 DEF
Variation du décalage du zéro exprimé en pourcentage du signal nominal. La dérive du zéro peut être due à des variations de la pression d'entrée, de la température et à d'autres conditions d'utilisation. 1, record 9, French, - d%C3%A9rive%20du%20z%C3%A9ro
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 1998-09-16
Record 10, English
Record 10, Subject field(s)
- Mechanical Transmission Systems
Record 10, Main entry term, English
- null bias
1, record 10, English, null%20bias
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 DEF
Input signal required to bring the valve to null, excluding the effects of valve hysteresis expressed as percent of rated signal. 1, record 10, English, - null%20bias
Record 10, French
Record 10, Domaine(s)
- Transmissions mécaniques
Record 10, Main entry term, French
- décalage du zéro
1, record 10, French, d%C3%A9calage%20du%20z%C3%A9ro
correct, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 DEF
Signal d'entrée nécessaire pour mettre au zéro en excluant les effets de l'hystérésis. On l'exprime en pourcentage du signal nominal. 1, record 10, French, - d%C3%A9calage%20du%20z%C3%A9ro
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 1991-05-29
Record 11, English
Record 11, Subject field(s)
- Computer Graphics
Record 11, Main entry term, English
- holographic self-substraction
1, record 11, English, holographic%20self%2Dsubstraction
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 DEF
A phenomenon whereby a new hologram diffracts energy out of the signal beam into the reference hologram, so obtaining a null signal after a timing period depending on a characteristic constant. 1, record 11, English, - holographic%20self%2Dsubstraction
Record 11, French
Record 11, Domaine(s)
- Infographie
Record 11, Main entry term, French
- autosoustraction holographique
1, record 11, French, autosoustraction%20holographique
correct, feminine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record 11, Spanish
Record 11, Textual support, Spanish
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