Vibratory structure, method for controlling natural frequency th

Details Vibratory structure, method for controlling natural frequency th Vibratory structure, method for controlling natural frequency th

1996-10-23

1998-07-14

Williams, Hezron E.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

7350416, 7350402, 331156, G01P 900

Patent

active

057807400

ABSTRACT:
A vibratory structure and a method for controlling the natural frequency thereof are provided. The device has at least one elastic member supported by a first support end, an inertial object which vibrates by the elastic force of the elastic member, a moving electrode coupled to the inertial object, at least one effective stiffness controlling electrode supported by a second support end, and a power supplier for applying a voltage to generate an electric force between the moving electrode and the effective stiffness controlling electrode. This vibratory structure can contribute to controlling and improving the performance of a sensor, an actuator or a gyroscope, which employs the vibratory structure.

REFERENCES:
patent: 4926143 (1990-05-01), Harada et al.
patent: 5361635 (1994-11-01), Woodruff
patent: 5563343 (1996-10-01), Shaw et al.
patent: 5600064 (1997-02-01), Ward
patent: 5625145 (1997-04-01), Maeno et al.

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