Drift-Compensated Free-Rotor Gyro.

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Abstract:

The patent application relates to a fluidicpneumatic, two-axis, free-rotor gyro in which the free-inertia rotor is gas bearing supported on a spherical portion of a rotatable gas bearing rotor, both rotors being connectable to controllable sources of drive fluid pressure for separate drive and pneumatic pickoff and torquer units, the pickoff units providing control signals representative of the frequency of each rotor. The invention includes a further aspect of comparator control circuits responsive to said control signals for selecting and maintaining the speed of each of the two rotors independently and in a ratio selected to provide G sup 2 drift compensation. A further aspect of the invention comprises the compensation of case-erection drift by auto-erection drift by specific scaling of the gas-bearing and windage air gap parameters.

Author(s):
Broderson, Ralf K.
Author Organization(s):
DEPARTMENT OF THE NAVY WASHINGTON DC
Descriptive Note:
Patent Application,
Pagination:
0023

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
This Government-owned Invention Available For U.s. Licensing And, Possibly, For Foreign Licensing. Copy Of Application Available Ntis.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-627 637
 Subject Terms
Communities of Interest:
Air Platforms
Descriptor(s):
*GYROSCOPES, *GAS BEARINGS, PATENTS, ROTORS, FLUIDIC CONTROL, GAS TURBINES
Field(s)/Group(s):
Active and Passive Radar Detection and Equipment
Keyword(s):
*Patent applications, PAT CL 74 5 7
Report Date:
1975 Oct 31