Matches 1 - 21 out of 21

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US20100072939 MOTOR DRIVING SYSTEM COMPATIBLE WITH DIFFERENT TYPES OF ENCODERS  
A system compatible for different types of signals relates to a motor includes a differential amplifier, a comparator, and a transmitting device. The differential amplifier is configured to...
US20100066298 POSITIONING DEVICE IN GANTRY TYPE OF CONSTRUCTION  
In a positioning device in gantry type of construction, due to a special arrangement of the position-measuring devices used for the positioning, errors due to thermal expansion of the positioning...
US20120139468 MULTI-ROTATION HOBBY SERVO MOTORS  
Multi-rotation hobby servo motors are provided. In one embodiment, a hobby servo motor comprises a rotatable output shaft, a feedback mechanism, and a control circuit. The feedback mechanism...
US20130020981 POSITIONING SENSING AND POSITION SERVO CONTROL  
Implementations of actuators and capacitor-based position sensors for monitoring and controlling positioning of the actuators are provided, including implementations of actuators that use flexures...
US20140111133 HOBBY SERVO MOTOR LINEAR ACTUATOR SYSTEMS  
Hobby servo motor linear actuator systems are provided. In certain circumstances, a linear actuator system includes a lead screw attachment mechanism and a lead nut. The lead screw attachment...
US20060108963 Method for protecting an electronic device driven by DC motor and circuit for detecting positioning signals thereof  
A method for protecting an electronic apparatus driven by a DC motor and a detection circuit for detecting positioning signals thereof. The electronic device includes an optical encoder, a code...
US20070229019 ELECTRIC MOTOR CONTROL UNIT  
An electric motor control unit (10) comprises: a first position detecting means (31) for detecting a position of a mechanical movable portion (24) driven by an electric motor (20); a second...
US20070096678 Positional indicia misplacement compensation  
Apparatus and method for compensating for positional indicia misplacements in the positioning of a control object, such as with servo seam misplacements on a data storage device storage medium. An...
US20090309532 DISPLACEMENT DETECTING METHOD, CORRECTION TABLE MAKING METHOD, MOTOR CONTROL APPARATUS, AND PROCESSING MACHINE  
A displacement detecting method of the present invention includes the steps of driving a moving part 3 using a drive unit 1, detecting a displacement amount 6 (detected angle θm′) of the moving...
US20150097508 METHOD FOR MEASURING DISPLACEMENT OF PLANAR MOTOR ROTOR  
A method for measuring the displacement of a planar motor rotor. The measuring method comprises: four magnetic induction intensity sensors are distributed on the planar motor rotor; sampled...
US20090033270 Position Feedback Device for a Motor  
A position feedback device for a motor comprises a driven member and a sensing device. The driven member is indirectly connected to the motor and driven by it. The sensing device detects the...
US20090256309 Code wheel manufacturing method, code wheel, rotary encoder, rotation control unit, belt carrier unit, and image forming apparatus  
A manufacturing method for a code wheel for a rotary encoder is provided. The code wheel includes, in a central portion, a hole into which a rotary shaft of a rotary member is fitted and a code...
US20150108937 VALVE ACTUATORS  
A valve actuator having a drive shaft, which, in use, is configured to adjust a valve between an open position and a closed position, an AC induction motor for driving the drive shaft a...
US20100097681 MICROMECHANICAL ELEMENT AND SENSOR FOR MONITORING A MICROMECHANICAL ELEMENT  
A micromechanical element includes a movable functional element, a first retaining element, a second retaining element, a third retaining element, and a fourth retaining element. The first...
US20080001569 Motor driving apparatus  
A motor driving apparatus includes a control circuit configured to control an electric current flowing in a coil for driving a motor for driving a galvanometer mirror. The control circuit includes...
US20100060966 ACTUATOR USING PIEZOELECTRIC ELEMENT AND METHOD OF DRIVING THE SAME  
An actuator using a piezoelectric element and a method of driving the same. The actuator includes at least one piezoelectric cell moving by displacement according to an input voltage, at least one...
US20150035469 SENSING PM ELECTRICAL MACHINE POSITION  
An electrical machine includes a stator having a stator winding and a secondary transformer coil. A rotor is operatively connected to rotate relative to the stator, wherein the rotor includes a...
US20150123589 ENCODER, MOTOR WITH ENCODER, SERVO SYSTEM, AND SIGNAL PROCESSING METHOD FOR ENCODER  
An encoder includes a measurement target which is coupled to a motor, a module which is positioned relative to the measurement target and generates signals based on motion of the measurement...
US20100109595 INTEGRATED ACTUATOR SENSOR STRUCTURE  
An integrated sensory actuator (10) which uses an electroactive polymer is provided. The sensory actuator is comprised of an actuating member (12) made of an ionic polymer-metal composite; a...
US20120133319 METHODS, SYSTEMS, AND DEVICES FOR A MOTOR CONTROL SYSTEM  
Systems, devices, and methods for controlling a motor are disclosed. A method may include determining a rotational direction of a motor from a pair of quadrature signals sent to a microprocessor....
US20130076290 POSITION SENSING DEVICE, ROTATIONAL ACTUATOR HAVING THE SAME, SHIFT-BY-WIRE SYSTEM HAVING THE ROTATIONAL ACTUATOR, AND METHOD FOR DETECTING POSITION OF MOVABLE MEMBER  
A pulse signal output unit sends three-phase pulse signals according to movement of the movable member. A counter unit adds a first predetermined value or a second predetermined value to a count...
Matches 1 - 21 out of 21