Angular velocity transducer

Claim 1

IN A DEVICE FOR MEASURING ANGULAR VELOCITIES INCLUDING A RESONANT SYSTEM WHOSE MOMENT OF INERTIA WITH RESPECT TO AN AXIS OF ROTATION IS PERIODICALLY VARIABLE BY MEANS OF EXTERNAL ELECTROMECHANICAL EXCITATION FOR PRODUCING TORSIONAL OSCILLATIONS WITHIN THE RESONANT SYSTEM IN DEPENDENCE UPON ROTATION ABOUT THE AXIS OF ROTATION, THE IMPROVEMENT WHEREIN A SYMMETRICAL RESONATOR EXCITABLE TO LONGITUDINAL OSCILLATIONS OF THE N$/2 RESONANCE IN THE DIRECTION OF THE AXIS OF ROTATION IS THE MOST ESSENTIAL PART OF THE RESONANT SYSTEM, SAID RESONATOR BEING CONSTRUCTED SO THAT THE N$ RESONANCE OF THE TORSIONAL OSCILLATION OF THE RESONATOR IS ALSO AT LEAST NEAR THE RESONANT FREQUENCY OF THE LONGITUDINAL OSCILLATIONS, WHERE N IS EQUAL TO 1, 2, 3, ..., MEANS FOR EXCITING THE RESONATOR TO LONGITUDINAL OSCILLATIONS AT THE U/2 RESONANCE SO THAT TO TORISONAL OSCILLATIONS OF THE U RESONANCE ARE CARRIED OUT AT ROTATIONS ABOUT AN AXIS IN THE DIRECTION OF THE LONGITUDINAL OSCILLATION, SAID MEANS INCLUDING AN INPUT TRANSDUCER CONNECTED TO SAID RESONATOR, AN OUTPUT TRANSDUCER CONNECTED TO SAID RESONATOR, A SOURCE OF ALTERNATING VOLTAGE, SAID TRANSDUCERS BEING EXCITABLE TO LONGITUDINAL