TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A linear accelerometer using a single-degree-of-freedom gyro having a pendulosity along the spin axis that is servo-driven about the input axis at a rate that balances the torque induced by sensed acceleration along the input axis. The angle through which the servoed axis rotates is proportional to the integral of the sensed acceleration.  3, record 1, English, - pendulous%20integrating%20gyroscopic%20accelerometer

Record number: 1, Textual support number: 1 CONT

The intercontinental ballistic missiles(ICBM) and submarine-launched ballistic missiles(SLBM) developed over the past 50 years have employed successive generations of increasingly accurate inertial guidance systems. The comparatively short time of guided flight and high acceleration levels characteristic of the ballistic missile application place a premium on accelerometer performance to achieve desired weapon system accuracy. To date, the accelerometer design of choice for strategic missiles has been the Pendulous Integrating Gyroscopic Accelerometer(PIGA) instrument, an accelerometer whose origins trace back to the German V2 rocket, and has been refined through several generations of development to achieve unsurpassed performance.  4, record 1, English, - pendulous%20integrating%20gyroscopic%20accelerometer

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

The modern concept of inertial navigation and inertial guidance systems has been made possible by the development of the precision gyroscope. It remains the heart of an inertial guidance system and system performance is directly related to the ability of the gyroscope to provide a precision inertial frame in which to reference the accelerometers used to measure the forces acting on the vehicle or missile being guided from a position A to a position B.  5, record 2, English, - inertial%20guidance%20system

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Le pilote automatique [...] Au nombre de trois, les gyroscopes assurent la stabilisation d'une plate-forme sur laquelle sont montés des accéléromètres très sensibles, mesurant les écarts et orientant les gouvernes pour corriger ces écarts, sans envoi ou réception électroniques d'aucune sorte. En conséquence, aucun repère terrestre ou céleste ne leur est nécessaire. Ce système de guidage, dit par inertie, est donc invulnérable au brouillage électronique.  3, record 2, French, - syst%C3%A8me%20de%20guidage%20par%20inertie

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

... the missile breaks surface and, as the first stage ignites, an aerospike-a long pointed probe-extends above the nose to form an inclined shockwave and improve aerodynamic performance.  1, record 3, English, - aerospike

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

The Motorola AIM-9C [missile] was an early attempt to give Sidewinder all-weather performance by installing a semi-active radar seeker in place of the normal infra-red head and by adopting a new motor, thereby increasing the weapon's maximum range.  1, record 4, English, - semi%2Dactive%20radar%20seeker

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

Avec le Motorola AIM-9C, l'USN a essayé de conférer au Sidewinder une capacité tout-temps en remplaçant l'autodirecteur IR normal par un autodirecteur Motorola à radar semi-actif, et en l'équipant d'un nouveau moteur pour en augmenter la portée.  2, record 4, French, - autodirecteur%20%C3%A0%20radar%20semi%2Dactif

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

The AIM-7F [missile] still employs a conical-scan seeker which is vulnerable to electronic countermeasures, however, and its performance against targets flying in ground clutter is inadequate.  1, record 5, English, - conical%2Dscan%20seeker

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

L'AIM-7F est toutefois, toujours muni d'un autodirecteur à balayage conique vulnérable aux CME, et ses performances contre des cibles volant au-dessous de la couverture radar sont insuffisantes.  1, record 5, French, - autodirecteur%20%C3%A0%20balayage%20conique

Record 5,  Textual support,  Spanish