A gyrovertical is a gyroscopic device designed to determine the direction of the true vertical of a place (the direction of gravity at a given point on the earth's surface) or the horizon plane, as well as measuring the angle of inclination of an object relative to this plane. It is used to provide roll and pitch angles to aircraft control systems, and also as a measuring device for a remote horizon .
The main difference between existing gyroverticals and gyroscopic sensors of autonomous horizon horizons (except for AGI-1 ) is the gyro - stabilized platform system. Two gyroscopes are installed on the platform (one for roll and one for pitch), when one of them is deflected (tilt with the platform), the corresponding engine is activated, returning the platform to a horizontal position. As a result, the platform is always horizontal and not subject to precession, as in the case of using one gyroscope, and its position relative to the gyrovertical body, rigidly fixed to the aircraft, reflects the position of the aircraft relative to the horizon and is transmitted to the indicator and other systems using potentiometers or selsyn (for example autopilot ).
Girovertikali provide accuracy of measurement of roll angles and pitch to 5 '.
Literature
- Automatic on-board control system ABSU-154-2. Technical operation manual. Part 2