Quasi-optimum three-axis control of a space vehicle.
Quasi-optimum three-axis attitude control law for minimum time of rigid body, noting gyroscopic cross axis coupling
ATTITUDE CONTROL↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Compensation circuit improves operation of inductive coupling transformers
Circuitry eliminates undesirable modulation effects in rotary transformers which transfer electrical energy to and from angular rate transducers on a gyroscope. It cancels the error by feeding back compensation signals through a tertiary winding on the stator of the output rotary transformer.
Source record↗
Squeeze-film gas bearing technology
Squeeze-film bearing is studied to develop a low-friction suspension for the output-axis gimbal of a single-degree-of-freedom gyroscope. Included are a review of pertinent literature, the theory of squeeze-film lubrication, and design elements.
Pan, C. H. T.↗
Improved gas ring laser
Minimizing mode coupling improves sensing resolution of a gas ring laser in a gimballess gyroscope system or inertial rotation sensor. The piezoelectric-driven corner mirrors of the ring laser are oscillated in a direction parallel to their surfaces and the plane of rotation.
Coccoli, J. D.↗
A proposed test of the Einstein theory of gravitation by means of an unshielded orbiting gyro using passive telemetry
Proposed test of theory of gravitation by an unshielded earth orbiting gyroscope using passive telemetry
Cooper, D. H.↗
Tilt and vibration isolation system Final evaluation report
Design feasibility of precision tilt and angular vibration isolation system using gyroscope and accelerometer instruments for control
Rhodes, B.↗
Sterilizable wide angle gas bearing gyro FGG334S Quarterly progress report, 1 Apr. - 1 Jul. 1968
Development of sterilizable wide angle gas bearing gyroscope
Bremer, J. M.↗
Alumina bearing in gas-lubricated gyros
Friction and wear properties of alumina bearings for use in gas-lubricated gyroscopes
Rutherford, J. L.↗
Application of low temperature techniques to a satellite test of general relativity.
General relativity test proposal using low temperature techniques involving satellite-borne gyroscopes and star tracking telescope
Everitt, C. W. F.↗
Spacecraft control
Partial inertial system integration tests, automatic lens design, and vibration and shock analyses of electrostatic gyroscope
Source record↗
Twin CWG systems Final report
Construction, operation, and maintenance of twin control moment gyroscope system for space vehicle motion simulator
Auclair, C. F.↗
A linearization tool for use with matrix formalisms of rotational dynamics.
Rotational dynamics equations in linearized matrix form applied to satellite librations in circular orbit and gyroscope motion
Likins, P. W.↗
Strapdown Miniature Electrostatic Gyro /SDMEG/ development and evaluation Final report, 1 Jun. 1965 - 28 Mar. 1969
Feasibility study for strapdown electrically suspended gyroscope in attitude reference system for spacecraft
Wacker, J. C.↗
Gyro noise study program Final report
Reducing noise induced by turbulent windage torques within gimbal of fluid rotor gyroscope
Kraus, G. M.↗
Use of magnetic torque for CMG momentum management
Magnetic torque for control moment gyroscope momentum management with AAP workshops
Levidow, W.↗
Dynamic precession damper for spin stabilized vehicles Patent
Dynamic precession damping of spin-stabilized vehicles by using rate gyroscope and angular accelerometer
Garner, H. D.↗
Space vehicle attitude control Patent
Spacecraft attitude control system using solar and earth sensors, gyroscopes, and jet actuators
Acord, J. D.↗