METHOD OF CONTROLLING CHANGE IN ANGULAR POSITION OF ROTOR OF DYNAMICALLY TUNED GYROSCOPE OPERATING IN MODE OF ANGULAR VELOCITY SENSOR, CAUSED BY CHANGE IN ZERO SIGNALS OF ITS ANGLE SENSORS Russian patent published in 2024 - IPC G01C25/00 

FIELD: instrumentation.

SUBSTANCE: invention relates to instrument making, mainly gyroscopic, and can be used when adjusting the change in the angular position of the rotor of a dynamically tuned gyroscope (DTG) operating in the mode of an angular velocity sensor (AVG), caused by a change in the zero signals of its angle sensors. In order to eliminate static angles of inclination of the rotor of the DTG, which operates with isodromic feedbacks, by currents of torque sensors of its two channels, inputs of the regulator of inclination setpoints of the rotor of the gyroscope are preliminary connected to outputs of pre-amplifiers of sensors of angles. Further, the gyroscope is adjusted at resonance frequency of the rotor rotation speed with closed feedbacks and the rotor inclination angles caused by errors in setting the zero signals of the angle sensors are eliminated. Then, rotor turn angle is determined from its zero angular position to angular position when rotor touches rotating stop. For this purpose, the gyroscope rotor is deflected in the positive direction along the input axis of its first channel from the initial zero angle of the rotor inclination to the rotating stop, then this procedure is repeated for the second channel. In the operating mode, at each start of the gyroscope, operating at the resonant frequency of the rotor rotation speed with closed feedbacks along the channels, before the time of achieving the accuracy readiness of the gyroscope, the rotor is first deflected along the input axis of the first channel from the initial angle of inclination of the rotor along the first channel in the start-up to the rotating stop, then a similar operation is performed for the second channel. After that, the zero angular position of the rotor of the DTG is provided in the start-up in the presence of zero signals of its angle sensors.

EFFECT: high accuracy of gyroscopic systems based on DTG-AVG.

1 cl, 8 dwg