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US20090315544 |
Rotation detection device and rotation detector equipped bearing assembly
There is provided a rotation detection device 1 which includes a plurality of magnetic encoders ( 2 A, 2 B) of a ring shape arranged coaxially and having different numbers of magnetic poles, a...
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US20090315541 |
ANGULAR POSITION SENSOR
An angular position sensor and method that relies on a stationary circular array of Hall sensors and a rotatable circular array of magnets arranged about a common axis. A periodic and simultaneous...
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US20090309583 |
Rotation Angle Sensor and Rotation Angle Sensor System
Rotation angle sensor and rotation angle sensor system for determining the angle of rotation of a shaft which can rotate at its shaft end, having a housing, having a shaft mount which is mounted on...
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US20090309586 |
Gobo Wheel Location Drive
A gobo wheel with automatic detection system that automatically detects a rotational position of the gobo. The rotational position can be detected by a magnetic marking system. Each of the gobos...
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US20090309585 |
ROTATION ANGLE DETECTION DEVICE
A rotation angle detection device comprises a rotor ( 120 ) attached to a measurable rotation body (Sh) for rotating with the measurable rotation body to be measured a rotation angle, and...
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US20090309584 |
Rotary velocity sensor and rotary position and velocity sensor
A rotary velocity sensor includes a stator having a coil and a rotor having a permanent magnet. The rotor is substantially coaxially aligned with the central longitudinal axis of the stator,...
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US20090302832 |
MEASURING SYSTEM FOR DETECTING A ROTARY-LINEAR DISPLACEMENT AND CORRESPONDING ROTARY-LINEAR DRIVE
The invention relates to more accurate rotative and linear positional measurement for a rotary-linear drive. A measuring system comprising a linear sensor ( 12 ) and a rotary sensor ( 20 ) is...
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US20090302833 |
MAGNETIC DETECTION APPARATUS
In a magnetic detection apparatus, a magnetic detection sensor generates a sensor output signal whose high level and low level have different potentials in accordance with the moving direction of a...
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US20090289622 |
Angle Detector
It is an object of the present invention to obtain an ultrathin angle detector by disposing an annular rotor board face to face with stator windings of a plurality of stators provided on an annular...
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US20090289623 |
ROTARY ANGLE DETECTING DEVICE
A rotary angle detecting device is provided which includes: a main driving gear configured to rotate while being directly or indirectly connected to a detection target rotating about a...
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US20090283069 |
Apparatus for detecting the angle of rotation for a throttle valve operated by means of an electric motor
A device for detecting the angle of rotation of a throttle valve operated by an electric motor is disclosed. The valve is rotatably supported on a throttle valve shaft in an intake system of a...
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US20090278531 |
Integrated Circuit for Controlling an Electric Motor
An integrated circuit for controlling an electric motor, which has a primary component with a coil and a permanently magnetic secondary component cooperatively connected via an air gap to the...
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US20090278532 |
Angular position sensing device
An angular position sensing device suitable for use in a mobility vehicle, particularly as a speed control input device. First and second magnetic sensors are rotationally offset with respect to...
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US20090276180 |
Measuring Device with Two-channel Sampling
The present invention relates to a shaft encoder device, comprising magnetic sensor means designed to detect the magnetic field of a magnetic field generating means stationary with respect to the...
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US20090267804 |
CYLINDRICAL COVER ATTACHED ENCODER APPARATUS
A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the...
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US20090267593 |
RELATIVE ROTATIONAL POSITION DETECTION APPARATUS
A first sensor detects a rotational position of a first shaft in a noncontact fashion and generates a first output signal by phase-shifting a reference A.C. signal in accordance with the detected...
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US20090267595 |
MAGNETIC ENCODER
A magnetic encoder, which is formed annularly of a magnetic rubber material, is magnetized to be multipolar in the circumferential direction and has a detected surface read by a magnetic sensor, is...
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US20090267594 |
POSITION SENSOR AND POSITION SENSOR ARRANGEMENT FOR A CONTACTLESS DETERMINATION OF A POSITION BY MEANS OF REDUNDANT MAGNET-SENSITIVE SENSOR ELEMENTS
The present invention creates a position sensor and a position sensor arrangement on the basis of magnetic field sensing sensors maximizing reliability against defects and external interference...
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US20090256556 |
MEASURING ARRANGEMENT FOR DETECTING A 1/ROTARY MOMENTUM OF AN ENGINE ROTOR, AND ASSOCIATED METHOD
A measurement system for detecting a rotary movement of a rotor that is situated in particular in rotatable fashion in a compressor housing of a jet engine, includes the rotor having vane elements...
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US20090251134 |
Rotation detection apparatus
A rotation detection apparatus for detecting a rotation state of a gear is disclosed. The rotation detection apparatus includes a magnetic sensor, a magnetic filed generation unit, and a...
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US20090254301 |
Systems and Methods for Detecting Angular Position
Methods and systems for detecting an angular position of a rotating device are disclosed, including sensing and counting high-resolution transitions of a high-resolution digital sensor in response...
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US20090248352 |
MOTION SENSING PROGRAM AND ELECTRONIC COMPASS WITH MOTION SENSING PROGRAM
A motion sensing program for executing a motion sensing based on at least a biaxial output of a magnetic sensor, which includes the steps of determining with respect to execution of the motion...
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US20090243600 |
ROTATION SENSOR UNIT
A rotation sensor unit includes an encoder, a holder radially positioning the encoder, and a rolling bearing having an inner race. The rolling bearing is fitted around the shaft so that one end of...
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US20090243599 |
MULTIPLE-ROTATION ABSOLUTE ENCODER
A multiple-rotation absolute encoder attached to an actuator provided with a motor and a reduction gear comprises a multiple-rotation value counter for counting a multiple-rotation value...
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US20090224752 |
REACTANCE SENSORS OF RADIAL POSITION FOR MAGNETIC BEARINGS AND BEARINGLESS DRIVES
A radial position sensor includes a rotating element configured to rotate about an axis of rotation, which subject to displacement. The displacement from a first position to a second position can...
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US20090219017 |
Tone Wheel and Method for Manufacturing The Same
A tone wheel constituting a rotation detection magnetic encoder in combination with a magnetic sensor fixed onto a stationary side member, the tone wheel comprising a metal reinforcing ring fitted...
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US20090219016 |
System for Detecting an Absolute Angular Position by Differential Comparison, Rolling Bearing and Rotary Machine
System for detecting angular position of a rotating element with respect to a non-rotating element, comprising an annular coder provided with a number P of poles greater than or equal to 2 intended...
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US20090211374 |
ROTATION ANGLE AND TORQUE DETECTION APPARATUS
A rotation angle and torque detection apparatus includes: a target having magnetic poles magnetized at an outer circumference face so that the magnetic poles have alternately-different polarities...
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US20090206827 |
ROTATION-ANGLE-DETECTING APPARATUS, ROTATING MACHINE, AND ROTATION-ANGLE-DETECTING METHOD
A rotation-angle-detecting apparatus comprising a magnet rotor having 4 or more magnetic poles on the surface, and sensor device for detecting magnetic flux from the magnet rotor, and an electronic...
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US20090206828 |
FAILURE DETECTION APPARATUS FOR RESOLVER
A failure detection apparatus for a resolver outputting a sine signal indicative of sin θ and a cosine signal indicative of cos θ according to a rotational angle θ of a rotator, includes an...
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US20090206829 |
SIGNAL PROCESSING DEVICE FOR SENSING DEVICE
A signal processing device includes an upper amplitude value estimating portion estimating an upper amplitude value based on a peak value of the detection signal and a predetermined median value of...
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US20090201014 |
TWIST-GRIP CONTROL DEVICE, IN PARTICULAR FOR MOTOR VEHICLES
The device ( 1 ) comprises: a stator portion ( 2 ) which is stationary in operation, a rotor portion ( 3 ) which may be gripped and which is mounted such that it can be manually rotated about an...
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US20090195243 |
TILT ANGLE SENSOR AND DETECTION-TARGET DEVICE COMPRISING THE SAME
To provide a tilt angle sensor that is capable of detecting acceleration, a tilt angle, and the like of a device to which the tilt sensor angle is mounted, and also capable of reducing the size and...
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US20090195197 |
Rotating electrical machine control device
A rotating electrical machine control device includes an inverter; a resolver; a unit; a three-phase/two-phase modulation switching unit; and a motor control unit that switches to a two-phase...
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US20090188743 |
Steering angle sensor
A steering angle sensor comprises a main rotor which can be rotated in a rotationally synchronous manner and which can be coupled to a steering column or to a steering wheel. The main rotor can be...
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US20090189601 |
MAGNETIC SENSOR AND ROTATION-ANGLE-DETECTING APPARATUS
A magnetic sensor comprising a bridge circuit in which four magnetoresistive devices are connected, the magnetoresistive device comprising a spin-valve, giant-magnetoresistive film comprising a...
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US20090189110 |
VALVE ACTUATORS HAVING MAGNETIC ANGLE SENSORS AND SYSTEMS INCLUDING SAME
A valve actuator including a magnetic angle sensor is disclosed. The magnetic angle sensor may function as an absolute position encoder. The magnetic angle sensor may also function as an...
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US20090179634 |
Clock generation circuit, analog-digital angle converter using the same, and angle detection apparatus
Two-phase resolver signals output from a rotation angle detector are squared by first and second squaring circuits. The squared signals are added by an adding circuit. The DC component of the...
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US20090179632 |
Magnetic Resolver
A magnetic resolver includes: a plurality of columnar cores disposed on an annular plate; a coil portion disposed around each of the columnar cores; and an annular rotor having a sinusoidal profile...
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US20090179633 |
SELECTOR SWITCH
Improvement on selector switch. The present invention refers to an improvement on a selector switch mainly used in the control of electro-electronic equipment. Said improvement consists of the...
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US20090179529 |
RESOLVER, MOTOR, POWER STEERING APPARATUS AND METHOD OF MANUFACTURING THE RESOLVER
A resolver includes a stationary unit centered about a center axis, and a rotary unit disposed inside or outside the stationary unit to be rotatable around the center axis with respect to the...
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US20090179635 |
System and Methods for Determining Motor Position
According to the invention, a method for determining the radial position of a rotatable object is disclosed. The method may include providing targets at known relative radial positions coupled with...
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US20090174398 |
Reel shaft of barcode printer
A reel shaft sensor is provided for a barcode printer and is applied to a reel shaft of the barcode printer. The reel shaft sensor device includes a plurality of magnetic elements and at least one...
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US20090174397 |
INTERNAL INSTRUMENTATION SYSTEM FOR A NUCLEAR REACTOR, THE SYSTEM HAVING AN ADVANCED ELECTRONIC CARD, AND A CORRESPONDING METHOD OF MODIFYING AN INTERNAL INSTRUMENTATION SYSTEM OF A NUCLEAR REACTOR
This internal instrumentation system ( 3 ) for a nuclear reactor comprises at least: a probe ( 7 ) for measuring the neutron flux in the core ( 5 ) of the nuclear reactor; a displacement cable ( 9...
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US20090167296 |
RESOLVER APPARATUS AND ANGLE DETECTION DEVICE AND METHOD OF RESOLVER
A resolver apparatus having a high detection precision detecting angle signals from signals detected at a resolver ( 7 ) and detecting a velocity signal from the detected angle signals. Utilizing...
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US20090160587 |
DEVICE WITH CONTACTLESS ADJUSTMENT MEANS
The invention relates to a device comprising an integrally closed enclosure ( 10 ) on which an actuation unit ( 6 ) is mounted enabling contactless adjustment of a parameter or operating mode of...
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US20090160436 |
Reference signal generation circuit, angle converter, and angle detection apparatus
A reference signal generation circuit generates a reference signal used in synchronous detection for removing an excitation signal component in an angle calculation section that converts a...
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US20090153136 |
Pulsar Ring for Rotary Encoder
A pulsar ring for a rotary encoder has a mounting ring ( 1 ) made of a non-magnetic material, with one end being fixed to an inner ring ( 202 ) at the rotation side and the other end being...
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US20090153137 |
Methods and Apparatus for Vibration Detection
Apparatus for detecting vibration of an object adapted to rotate includes one or more vibration processors selected from: a direction-change processor adapted to detect changes in a direction of...
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US20090146648 |
Rotation Detector
A rotation detector that can be assembled into a hub of a wheel without breakage of an object to be detected. The rotation detector has a housing ( 1 ) having an insertion section ( 1 a ) in which...
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