Gyroscope rate range switching and control system

Details Gyroscope rate range switching and control system Gyroscope rate range switching and control system

1977-11-02

1979-12-18

Blix, Trygve M.

Aeronautics and astronautics

Aircraft control

Automatic

33326, 74 56D, G01C 1928

Patent

active

041790871

ABSTRACT:
An automatic rate range switching and control system adapts the full range of an analog output signal of a gyroscopic rate sensor to a range consistent with the precision conversion thereof into a digitally compatible signal. In a digital strapped down inertial reference system, for example, a plurality of strapped down, force-rebalanced rate sensors is used to sense aircraft body rates, wherein each gyro pick off signal is fed back to the gyro torquer in a manner to maintain the pick off signal essentially null, the torquer current signal thus being proportional to the sensed aricraft rate. The full range of the gyro's rate sensing capability may extend from zero to several hundred degrees per second. However, with the present invention, the switching and conversion of the analog rate signal into a digitally compatible signal is necessary only over a limited range. The current switching is accomplished by means of a rate tracing gate voltage rate switch for protecting the switching devices from destructively high switching voltages.

REFERENCES:
patent: 2887636 (1959-05-01), La Hue
patent: 3477298 (1969-11-01), Howe
patent: 3555692 (1971-01-01), Aberle

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