asservi

CONT: L'Horizon artificiel. Il mesure simultanément une assiette et une inclinaison. L'utilisation d'un gyroscope asservi à la verticale lui permet de mesurer les angles compris entre l'axe du gyroscope et les axes liés à l'avion. On obtient ainsi les sens en degrés d'inclinaison ainsi que la valeur de l'angle d'attitude à cabrer ou à piquer.
CONT: Gyroscope asservi.
OBS: asservi : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Hélicoptères.

CONT: A free gyro that is not slaved to any Earth reference (as the vertical and directional gyros and the gyrocompass are) will tend to maintain a fixed direction in inertial space, that is, with respect to fixed stars. Then as the Earth rotates, the angle between the axis of such a gyro and an arbitrary line on the Earth will change, and to an Earth-fixed observer the gyro will appear to precess.
CONT: The Rover navigation system uses a directional gyro to keep track of the Rover heading ... and rotation counts on the four wheels to determine distance driven, range back to the LM [lunar module], and bearing to the LM. (Jones - ""I had thought, originally, that the Nav system used inertial..."") (Irwin - ""When you say inertial, you normally think of inertial as three-axis inertial. Here, you've only got a slave gyro and one axis for heading."") (Jones - ""A single-axis gyro."")
OBS: slave: term officialized by the Aeronautical Terminology Standardization Committee (ATSC) - Helicopters.