Vibrational angular velocity sensor

Details Vibrational angular velocity sensor Vibrational angular velocity sensor

1988-07-22

1990-02-06

Chapman, John

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

G01P 1508

Patent

active

048980315

ABSTRACT:
To increase the stability and sensitivity of a vibrational angular velocity sensor, the vibrator is airtightly housed within a glass vacuum casing whose inside surface is coated with a metallic film. Further, conductive lead pins electrically connected between vibrator signal terminals and a printed circuit board for a signal processing circuit and fixing pins mechanically fixed to the printed circuit board are arranged with a constant length outside the casing in parallel to each other. Further, two vibrator support pins are fixed to the glass casing by glass material. To obtain a high vacuum within the glass casing, a subcasing including a getter is connected to the casing through a connecting tube cut off or sealed after evacuation.

REFERENCES:
patent: 3789673 (1974-02-01), Berlin et al.
patent: 3913405 (1975-10-01), Ljung et al.
patent: 4019391 (1977-04-01), Ljung
patent: 4592235 (1986-06-01), Fink
patent: 4750364 (1988-06-01), Kawamura et al.

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