Angular rate sensor apparatus

Details Angular rate sensor apparatus Angular rate sensor apparatus

1984-05-25

1986-12-16

Myracle, Jerry W.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

G01P 1510

Patent

active

046287345

ABSTRACT:
An angular rate sensor structure displaying high immunity to noise and feedback vibration is disclosed. Mounting elements (15) support a pair of matched vibratory piezoelectric bender elements (10) in symmetrical opposed alignment about a nodal axis (20). Each vibratory element includes a drive element (10A) and sense element (10B) connected to and for operative movement with the drive element. Resonance drive element (30) moves the vibratory elements (10) in a first mode of movement, in dirct opposition to one another about the nodal axis. The sensing members (10B) detect movement of the vibratory elements in directions other than in the first mode of movement resulting from application of external angular rate forces applied to the vibratory elements.

REFERENCES:
patent: 2455939 (1948-12-01), Meredith
patent: 2513340 (1950-07-01), Lyman
patent: 2544646 (1951-03-01), Barnaby et al.
patent: 2974530 (1961-03-01), Jaouen
patent: 4524619 (1985-06-01), Staudte
Watson, W. S., "Piezoelectric Vibrating Beam Rate Gyro", Navy Technical Disclsoure Bulletin, vol. 4, No. 6 Jun. 1979, pp 41-45.

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