Resonator restrained gyro
First Claim
Patent Images
1. A gyroscope comprising:
- a first member rotating about a spin axis;
a second member rotating about the spin axis and positioned in spaced relation to the first member;
flexible means securing the first and second rotating members together for permitting linked rotation therebetween;
a plurality of oscillating means;
a plurality of force sensing means respectively connected in circuit with the oscillating means, the force sensing means being physically angularly spaced from each other and connected between the first and second rotating members for producing a digital signal having a vibrational frequency dependent upon axial force along the spin axis as modulated by an input angular rate; and
means connected in circuit with the oscillating means and the force sensing means for resolving the frequency modulated signal into components indicative of input rates about two orthogonal axes.
3 Assignments
0 Petitions
Accused Products
Abstract
A gyro includes a rotatable hub with a flexing member centrally supporting a rotor. The rotor is further supported by a pair of piezoelectric force transducers angularly separated by 90 degrees. The rotor turns with the hub. Oscillators drive the transducers and, as the gyro undergoes angular displacement, the oscillators "follow" the instant natural frequency of the transducers. FM signals are generated which may be resolved into two digital signals indicative of angular rate about the gyro case X and Y axes.
-
Citations
4 Claims
-
1. A gyroscope comprising:
-
a first member rotating about a spin axis; a second member rotating about the spin axis and positioned in spaced relation to the first member; flexible means securing the first and second rotating members together for permitting linked rotation therebetween; a plurality of oscillating means; a plurality of force sensing means respectively connected in circuit with the oscillating means, the force sensing means being physically angularly spaced from each other and connected between the first and second rotating members for producing a digital signal having a vibrational frequency dependent upon axial force along the spin axis as modulated by an input angular rate; and means connected in circuit with the oscillating means and the force sensing means for resolving the frequency modulated signal into components indicative of input rates about two orthogonal axes. - View Dependent Claims (2, 3, 4)
-
Specification