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7383747 |
Apparatus and method for gyroscopic propulsion
The present invention is a combination of three interconnected gyroscopic ring-like rotating masses, with each of the three ring-like masses being configured to rotate in various planes, depending...
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7225524 |
Method for fabricating a gyroscope
Method for fabricating a gyroscope including: fabricating a SMS wafer where a first wafer, a metal film, and a second wafer are sequentially stacked; forming a cantilever or a bridge...
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7051608 |
Gyroscopic actuator
The gyroscopic actuator is a new device based on a mechanism designed to make us of the conservation of the kinetic momentum, so that it supplies a torque (momentum) to the platform where it is...
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7014150 |
Method and system for optimizing torque in a CMG array
A momentum-control system for a spacecraft is disclosed. The momentum-control system comprises an attitude-control system. The attitude-control system receives data concerning a desired spacecraft...
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6982538 |
Methods and apparatus for generating a sinusoidal motor drive signal for a MEMS gyroscope
An apparatus is described which reduces a time delay and a resultant phase shift in a gyroscope motor drive signal. The motor drive signal originates from a numerically controlled oscillator whose...
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6789437 |
Apparatus for precision slewing of flatform-mounted devices
An apparatus and a method for controlling the path of oscillatory travel of a device within a two-axis system. A device, such as a camera, is held in a two axis gimbal system having motors for...
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6742381 |
Apparatus and method for evaluating damping performance of vibration-damping devices
A damping performance evaluation apparatus for damping devices including: a support member detachably supporting a damping device in a state enabling the device to exhibit a damping effect thereof;...
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6354163 |
Mitigating gimbal induced disturbances in CMG arrays
In a CMG array used to change the attitude of a satellite, noise in the motion of the inner gimbal as it is moved is detected and the speed of the CMG rotors is changed to reduce the noise.
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5875676 |
Non colocated rate sensing for control moment gyroscopes
A feedback system for use in controlling control moment gyroscopes that are used in positioning a spacecraft where the relative rate of rotation is determined from the difference between the...
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5699256 |
Offset-drift correcting device for gyro-sensor
An offset-drift correcting device is designed for a gyro-sensor mounted on an object and outputting a signal representing an angular speed of the object. The device includes a first section for...
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5437420 |
High torque double gimbal control moment gyro
A system and related method is provided for rapidly repointing spacecraft through the application of a high torque, of a gyroscope in which braking means (20, 22) provided on a gimbal (16, 18) is...
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5138883 |
Analog torque rebalance loop for a tuned rotor gyroscope
A rebalance loop for controlling a dry tuned rotor gyroscope having a rotor moveable about two orthogonal axes, a first pickoff associated with one of the axes for producing an electrical error...
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4986139 |
Gyroscope control systems
A gyroscope system includes a gyroscope (1), angle pick-offs (5) and a control circuit (6,7). The angle pick-offs (5) sense the tilt of the gyroscope's rotor and generate a signal which is received...
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4803413 |
Magnetic isolating and pointing gimbal apparatus
A magnetic isolation and pointing gimbal apparatus provides support functions and multidegree of freedom pointing capability and simultaneous six degree of freedom bi-directional disturbance...
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4751444 |
DC motor system with AC auxiliary system
A direct current (DC) powered gyroscope (41) utilizes an alternating current (AC) subsystem in which electrolytic switches (49, 50) control torquer motors (45, 46). The alternating current is...
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4553439 |
Apparatus for demodulating gyroscope position information
A synchronous demodulator is configured so as to extract gyroscope position nformation in a polar coordinate format and then resolve it into position information in a more useful cartesian...
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4491029 |
Position gyroscope
The present positional gyroscope is used for stabilizing and steering a fng body, especially a secondary flying body ejected from a primary or carrier flying body which is rotating or rolling about...
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4466299 |
Gyro bearing assembly
A gyro assembly including a rotor, stator, hysteresis motor and conical hydrodynamic bearings for supporting the rotor relative to the stator.
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4441375 |
Gyroscopic instrument
The present invention is directed to a gyroscopic instrument comprising concentric containers, the inner container enclosing a rotating electric gyro rotor, magnetic fluid enclosed between the...
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4285248 |
Two-degree-of-freedom gyroscope
A two-degree-of-freedom gyroscope wherein a rotor is attached to and axially restrained by a taut wire fixed within the rotor drive shaft. Lateral or radial restraint for the rotor is provided by...
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4277039 |
Method and system for inducing and controlling nutation of a gyroscope
A method and system for inducing and controlling nutation of a gyroscope momentum wheel (or member) so that such controlled nutation can be used for purposes such as target searching, acquisition...
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4275605 |
Acceleration sensitive gyroscope stabilized platform
An inertial measuring unit which precesses about the direction of apparent acceleration as a consequence of the introduction of a mass unbalance to each of the gyroscopes in the inertial measuring...
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4274291 |
Gyro wheel speed compensation
A device for compensating for gyro wheel frequency inaccuracies wherein a reference oscillator feeds a square wave signal to a first and second counter. The second counter also has an input of plus...
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4214482 |
Inertial instrument
Disclosed is apparatus and method for accurately determining the direction of true north or the change in drift of other gyroscopes. The apparatus comprises a single degree of freedom gyroscope...
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4189947 |
Nutation damper for two-axis gyroscope
An electrical circuit interposed between the pickoffs and torquers of a two-axis gyroscope. The circuit output controls the torquers. When the pickoff signals vary at the nutation frequency, the...
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4189946 |
Three axis gyro
In a gyroscope including a rotor spinning about a spin axis, the rotor gimballed about two mutually perpendicular axes and including cross coupled closed loops operative on the two mutually...
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4155521 |
Cannon launched platform
A gyro seeker which is capable of use in a cannon launched missile. The gyro seeker is enclosed in a housing mounted in the nose section of the missile. The platform of the gyro seeker supports an...
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4125799 |
Gyro caging loop system
A system for providing a stable caging loop for two-degree-of-freedom dry tuned gyros used in a strap-down inertial navigation system. The system provides satisfactory noise rejection and good...
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4111562 |
Hydraulic gimbal system for beam projection lamps
A gimbal system is disclosed in which low static friction hydraulic motors drive two concentric movable rings in orthogonal planes. For each ring, the drive shaft of the motor is part of one...
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4078436 |
Adaptive bias for electrically suspended gyroscope
Means for varying the preload bias forces in the suspension system of an electrostatic gyroscope as a function of acceleration forces to which the gyroscope is subjected. Under zero acceleration...
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4036453 |
Wide angle torquing scheme
A torquer system for a gyro device that has a spherically shaped rotor divided into upper and lower hemispheres. The rotor of the gyro is mounted on a gas bearing over a spherically shaped stator...
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4026160 |
Non-tumbling limit stop providing a mechanical super cage
A non-tumbling limit stop for limiting the relative motion between a strure and a gyroscope pivotably mounted thereon. The limit stop employs frictional contact forces to cause the gyroscope to...
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4005608 |
Electrically controlled rate integrating device
A rate integrating device includes a torquer in open loop configuration for torquing the device to null and a load connected to the device in closed loop configuration for maintaining the device at...
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4003265 |
Mass balancing system for rotatable assemblies
Disclosed herein is an arrangement for counteracting mass unbalance in a rotatable assembly, such as the rotor assembly of a gyroscope. The invention proposes the use of two coaxially and mutually...
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3967384 |
Start-up conditioning means for an azimuth reference
In an azimuth reference system including a flux valve coupled to a synchro stator and a directional gyro having its outer gimbal mechanically coupled to the synchro rotor, a low power electronic...
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3941001 |
Gimbal control mechanism
A control mechanism to dampen gimbal tumbling and to orient the axes of rotation of the rotor and the gimbals of a gyroscope when in an inoperative state. The control mechanism serves as an...
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3938256 |
Quick settling gyrocompass having interaxis decoupling compensation for improved response time
A quick settling, accurate gyrocompass for obtaining an accurate, short reaction time azimuth reference is described. The device preferably comprises a four gimbal configuration supporting a...
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3898744 |
Constant precessed gyrocompass
A gyrocompass using an integrating gyro mounted on a platform rotating in a lane to which a local earth gravity vector is normal. The platform is rotated about an axis coincident with the output...
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3883788 |
GYROSCOPE ORIENTATION CONTROLLER
A gyroscope control system for maintaining a gyroscope rotor in a predetermined orientation utilizes the earth's gravity vector as a reference. A gravity sensitive mercury switch is placed on the...
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3875488 |
INERTIALLY STABILIZED GIMBAL PLATFORM
An inertially stabilized gimbal platform is disclosed wherein the gyros used in such system operate about their mechanical null positions and control the gimbal drive means through an electronic...
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3815428 |
GYROCOMPASSES
A simplified gyrocompass including a primary reference gyroscopic wheel which is supported in a two axis gimbal system, with an inertia wheel which serves as a primary directional stabilization...
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3805625 |
ASYMMETRIC GYROSCOPE
In the gyroscopic apparatus disclosed herein, externally impressed rotation of the gyroscope spin axis is detected by means of the resultant oscillatory torque developed in an asymmetric rotor. The...
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3795150 |
SYSTEM FOR RAPIDLY POSITIONING GIMBALED OBJECTS
A system for rapidly positioning gimbaled objects utilizing a rotating mass stabilization technique in conjunction with a brake and motor at each gimbal trunnion. With the alternate activation and...
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3762226 |
CONTROL MOMENT GYROSCOPE WITH INTEGRAL TORQUE CONTROL
A vehicle control mounted moment gryoscopic apparatus which employs a closed loop torque feedback system and includes a gyroscopic rotor disposed within a shell-like housing. The rim of the...
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3709045 |
UNIVERSAL JOINT FLEXURE ASSEMBLY
A universal joint gyroscope flexure hinge assembly is provided for a free rotor gyroscope, and which interconnects the rotor, or inertial flywheel, of the gyroscope to the motor-driven spin shaft...
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3704407 |
GYRO SERVO CONTROL SYSTEM & STRUCTURE
In a system for controlling the tilt of a rotor on a gyro, a sensing device for detecting tilt, together with electrical circuit components for providing an error signal are mounted upon the rotor...
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3702568 |
GYROSCOPES AND SUSPENSIONS THEREFOR
A sensitive element support for gyroscopic apparatus including an outer wheel connected to a drive shaft by flat transversely stiff elastic spokes having an effective plans parallel to the wheel,...
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3633003 |
OFF-LEVELING COMPUTER
This invention describes an off-leveling computer which continuously corrs for the error induced in sea gravimetry measurements because the gravimeter measuring axis is not aligned with the local...
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3604275 |
TOROIDAL ELECTROLYTIC SENSOR
A toroidal electrolytic sensor having substantially symmetrical diametrically opposed electrodes for providing an electrical signal in accordance with the relative immersion of the electrodes with...
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3498144 |
STABLE TWO-AXIS CASE ROTATING GYROSCOPES
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