ANGULAR VELOCITY MEASURING METHOD, A VIBRATORY GYROSCOPE, THE SELF OSCILLATOR OF THE GYROSCOPE AND A METHOD FOR BALANCING SAID SELF OSCILLATOR

摘要

The angular rate measuring method consists in exciting translational oscillations of a beam along a certain axis, said beam constituting a part of the frame of the inertial unit of the gyroscope, wherein the angular rate of rotation is judged according to the results of measuring the angular vibration parameters of the frame about an axis parallel to the aforementioned axis. The inertial unit of the gyroscope is in the form of a rigid n-shaped frame, the ends of which are connected by two flat springs to a pendulum in the form of a beam, which is parallel to the middle crossbar of the frame, and a hub, which is connected to the frame ends bytwo torsion bars. The frequency-setting element of the self- excited oscillator is in the form of a mechanical resonator with a coil rigidly attached to the inert mass thereof, the windings of said coil being situated in the magnetic fields of permanent magnets and the coil constituting a variable-reluctance transducer incorporated as one of the branches of a resistance bridge. When a direct voltage is supplied to one diagonal of the bridge circuit in an unbalanced state, a constant component arises at the output of the linear differential amplifier, said constant component, which is proportional to the degree of unbalance of the bridge, being used as the control signal.