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7368887 |
Servo control device and method of adjusting servo system
A servo control device that displays, by a two-dimensional image, evaluation of control precision of a servo system, includes: an instruction unit that instructs a position instruction having...
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7049785 |
Apparatus and method of controlling a stepper motor
An apparatus and method of controlling a stepper motor, includes a torque calculator to calculate torque operated on the stepper motor and to output to a controller a driving current setting signal...
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6832127 |
Motor controller
A motor controller comprising a machine system ( 12 ) having a load machine ( 1 ), a transmission mechanism ( 2 ) for transmitting power, and a motor for driving the load machine through the...
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6807463 |
Processor-controlled mixture with weight sensors
A system of intelligent appliances coupled by common household power lines or wireless links. One or more of the appliances serves as a system controller and may include a further communications...
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6694238 |
Electric power steering apparatus
An electric power steering apparatus for assisting steering by conferring torque generated by an electric motor to a steering mechanism. The apparatus includes: a correction table created based on...
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6300739 |
Low cost limited angle torque DC brushless servomotor and method for fabricating thereof
A novel low cost limited angle torque DC brushless servomotor is disclosed. The motor itself is a modified standard low cost DC brush motor which is modified by removing the brush assembly and...
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6204625 |
Driving apparatus for stepping motor
A driving apparatus equipped with a step controlling circuit drives stepping motors in a micro stepping manner. An encoder which detects a mover position of the motor supplies a signal to the...
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5808439 |
Satellite small angle tilting mechanism
A satellite mechanism is provided for tilting a directional device such as an earth sensor, telescope, antenna, reaction wheel, etc. through a small angle using flexural supports which provide...
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5767642 |
Electromotive power steering device
In an electromotive power steering device, when input is received in a reverse direction, i.e., from the road, no assist torque connection is made in the reverse direction. The upper inertial...
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5742140 |
Numerical-control machine tool
A numerical-control machine tool has a plurality of positioning members (12, 13, 15) which are each driven along a positioning axis (x, y, z) by a feed screw (19, 20, 21). The arrangement is...
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5619112 |
Bi-directional electric torque motor and driver
A limited angle torque motor and control circuit are adapted to convert an electrical demand signal of varying magnitude into a motor shaft position relating to the magnitude of the demand signal....
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5587635 |
Robot control apparatus for monitoring load on robot
A robot control apparatus in which a load exerted on a driving system of a robot is detected to make it easy to judge a time for preventive maintenance or overhaul, and life of the robot driving...
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5504409 |
Direct drive servovalve having two landed spool power stage
A direct drive servovalve which includes a limited angle force motor having an eccentric engaging a two landed spool for converting rotary motion of the motor rotor into linear motion of the spool...
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5313148 |
Electronically commutated two-axis gyro control system
A two degree of freedom gyroscope having a drive motor (20), with a permanent magnet rotor (22), which includes an optical sensor (11) for providing an X-axis signal and a Y-axis signal which are...
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5136227 |
Active gravity compensation device for force control system
An active gravitation compensation device, in which the weight of a driven member is supported substantially in a gravitation-free state by the output of a servo-actuator, and a small-sized torque...
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5070289 |
Miniature tactical angular rate sensor
A miniature two degree of freedom fluid bearing angular rate sensor used primarily for tactical applications includes a spherical hydrodynamic fluid bearing rotor, a permanent magnet motor/torquer,...
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4951521 |
Gimbal module
A gimbal module for installation in a gimbal assembly and for operation by a simple type of robot device for use in a space environment. The module has a stator, which is fixedly connected to a...
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4888540 |
Electronic torquer interface and erection control circuit
A gyroscope erection system uses an electrolytic tilt transducer (21) to modulate oscillator signals (OSC, OSC) originating from a signal conditioning circuit (27). The signal conditioning circuit...
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4862050 |
Optical commutation and tilt sensing for a permanent magnet gyro
A permanent magnet two degree of freedom gyroscope (10) utilizing a single rotor (12) having a trapezoidal shaped pattern formed thereon. The trapezoidal pattern consists of a reflective segment...
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4862049 |
Constant area pulse generating network
A system for generating substantially constant area pulses suitable for application to an inertial instrument torquer. The torquer current pulses are directly utilized to provide an averaging...
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4823063 |
Authority limiter
An authority limiter includes an input shaft clutched to an output shaft. The output shaft is geared to a motor. Opto-sensors, variable resistors or Hall effect devices provide control signals to a...
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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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4788483 |
Parallel redundant actuator systems
A parallel redundant actuator system of the kind wherein the signal in each of a plurality of lanes (31A, 31B, 31C) comprises the difference between a demand signal and a signal indicating the...
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4746843 |
Motor control circuit and drive amplifier for a permanent magnet DC torque motor
A control system for a brushless DC torque motor is disclosed. The motor comprises three coils, the wires at the end of each coil being brought out and connected to an amplifier that provides the...
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4724368 |
Multiple phase electronically commutated torque motor
A multiple phase electronically commutated torque motor including an annular stator element having at least two coils or windings on the periphery thereof and a magnetic rotor disposed...
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4661753 |
Differential torquer
A differential torquer having at least one bifilar winding mounted on the torquer is disclosed. The bifilar winding has opposing polarities and the torquer is particularly well suited for use in...
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4651075 |
Servoed accelerometer having isolated voltage torquing and method
Servoed accelerometer with isolated voltage torquing having first and second grounds, a servoed accelerometer having a torque coil, and an amplifier for driving said torque coil. The amplifier has...
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4645994 |
Space-referenced, rate-stabilized multiple-gimbal-platform system
A space-referenced, rate-stabilized gimbal platform system for use in a vehicle. The system includes a master gimbal mounted to the vehicle frame and having a master platform that is pivotable with...
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4626759 |
Low noise differential torquer servo loop and circuitry
A differential torquer servo loop having means for comparing the balance between a torquer position related signal and a signal indicative of the difference in the magnitudes of the currents in the...
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4510424 |
Nut runner control circuit
A nut runner control circuit which permits tightening of a screw in the plastic region with a normal torque without necessity of detecting the critical point from the elastic region to the plastic...
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4455519 |
Torque receiver controller
The disclosure describes a device for continuous analog position control of multiple torque receivers by a single low power synchro signal source. The device provides continuous control of the...
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4451769 |
Electronic compensator for an electrohydraulic servovalve
Electronic compensation apparatus for modifying an input control signal, to produce a drive signal for a torque motor of an electrohydraulic servovalve. The torque motor has a frequency variable...
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4390260 |
Play control for a threaded drive
The invention contemplates a precisely adjustable threaded mechanism, as for focus adjustment of an aerial camera lens, wherein inner and outer threaded members are normally in circumferentially...
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4278927 |
Axial gap permanent magnet motor
An axial gap, permanent magnet motor. The motor includes a stator affixed to a motor housing. The stator has two sets of series connected coils wound in quadrature. Each set of coils is disposed in...
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4274040 |
Solenoid torquer system
A solenoid torquer system with flux rate feed-back. The system includes a torquer coil and an associated core, and a device adapted to drive a current through the coil having an amplitude...
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4270120 |
Solid state synchro torque receiver driver
A solid state synchro torque receiver driver that uses unfiltered AC as the power source and push-pull regulating transistors operating in the linear mode to drive the torque receiver stator loads....
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4251762 |
Armature position detector
Apparatus is provided for sensing the actual position of an armature in an electromagnetic driver, such as a torque motor, a solenoid, or the like. An oscillator generates a relatively high...
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4182979 |
D-C. electric torquing system
An electric torquing device comprises a d-c. motor for producing an output torque that varies in proportion to variations in the armature current, a power source for supplying d-c. current to the...
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4063141 |
Linear D.C. drive circuit
A d.c. load is energized through a full wave bridge circuit from an a.c. source in accordance with a d.c. control signal. The d.c. control signal is modulated so as to produce a train of unipolar...
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4059790 |
Non-oscillating torque control apparatus
An apparatus is disclosed for generating a non-oscillating torque wherein a magnetic induction torquer having a first coil for clockwise torque and a second coil for counter-clockwise torque is...
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4021716 |
Reactionless gimbal drive system
A reactionless drive system is disclosed comprising in combination a base, a torquer mechanism, the stator portion of which is affixed to the counter-rotational inertia member and accepting control...
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4016469 |
Sensor including means for operating the sensor in rate measuring and stabilization modes
A sensor including means for operating the sensor in angular rate measuring and stabilization or rate integrating modes. When operating in the rate measuring mode, a loop is closed through an...
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3997975 |
Calibration of a meridian seeking instrument
A calibration system produces a calibrating signal having an adjustable amplitude, a torque force representative of that amplitude is directly applied to a meridian seeking gyroscope unit that...
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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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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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3422326 |
PULSE WIDTH MODULATED SERVO AMPLIFIER
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3418549 |
Combined numerical and torque control for a work and feed machine tool
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3411057 |
Digital fine and coarse system with pulse width torquer
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3403316 |
Digital control system for gyro torquers
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3375421 |
Combined torquer and pickoff means
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