Vibrational angular rate sensor

Details Vibrational angular rate sensor Vibrational angular rate sensor

1988-03-09

1989-06-06

Chapman, John

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

310351, G01P 904

Patent

active

048360236

ABSTRACT:
To increase the quality factor Q of the vibrational angular rate sensor and therefore the sensitivity of the sensor, stabilize the sensor performance, facilitate wiring work, and minimize the sensor, a square pillar shaped vibrator, four vibrator node support pins and an external vibrator support base are all formed integral with each other from a single constant elasticity material block. Further, at least three and preferably four piezoelectric elements are connected to an external circuit via at least three and preferably four separate thin film conductive layers each extending from each piezoelectric element, on and along each vibrator node support pin, to an external vibrator support base.

REFERENCES:
patent: 4511821 (1985-04-01), Nakamura et al.
"Vibrating Angular Rate Sensor May Threaten the Gyroscope," William D. Gates, Electronics, Jun. 10, 1968, pp. 130-134.
"Solid State Angular Rate Sensor (VYRO)," L. D. Sunderland and E. F. Arthur, AIAA Control Conf., 1980, pp. 183-187.

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