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Measuring And Testing > Dynamometers > Responsive To Torque > During Transmission To An External Load > By Measuring Elastic Deformation Of A Torque Transmitting Member > Using An Electrical Sensor > Inductance Or Reluctance Sensor Inductance Or Reluctance SensorInductance Or Reluctance Sensor patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.12/27/07 - 20070295109 - Torque detecting device and manufacturing method of yoke assembly A yoke assembly is constructed by retaining integrally a yoke ring having positioning holes aligned with pole claws arranged equally on the inner circumference and a yoke ring having positioning holes aligned with the space between pole claws arranged equally on the inner circumference by a retaining cylinder made of ... 12/13/07 - 20070283767 - Torque sensor and method of manufacturing the same The torque sensor includes a plurality of coil units having a substantially cylindrical shape, the coil units including a plurality of detection coils arranged to face a magnetic characteristic change portion formed on a rotary shaft. The coil units include a first coil unit and a second coil unit, and ... 10/18/07 - 20070240522 - Magnetostrictive torque sensor and electric steering system A magnetostrictive torque sensor includes first and second magnetostrictive films which are provided at a shaft and have different magnetic anisotropies; a first measurement coil and a second measurement coil which face the first magnetostrictive film; and a third measurement coil and a fourth measurement coil which face the second ... 08/16/07 - 20070186694 - Torque detection device and magnet fixing method An inventive torque detection device includes: a magnetic circuit forming member having a tubular magnet provided at an outer circumferential portion of a first rotating body, and a magnetic ring that is located circumferentially of the tubular magnet and rotated together with a second rotating body connected to the first ... 08/16/07 - 20070186693 - Torque detecting apparatus The number n of N-poles and S-poles circumferentially aligned on the cylindrical magnet that integrally rotates with the first shaft is determined so as to be a greatest integer that satisfies the following formula that includes a maximum value Tmax (Nm) of the torque to be detected and a torsion ... 08/16/07 - 20070186692 - Electric machine apparatus with integrated, high torque density magnetic gearing An electrical machine apparatus having magnetic gearing embedded therein includes a moveable rotor having a first magnetic field associated therewith, a stator configured with a plurality of stationary stator windings therein, and a magnetic flux modulator interposed between the moveable rotor and the stator windings. The magnetic flux modulator is ... 07/26/07 - 20070169569 - Torque detection device An inventive torque detection device includes: a magnetic circuit forming member provided at a rotating body to which a torque is applied; a magnetic flux collecting ring for collecting a generated magnetic flux; a detection part for detecting, based on the density of the collected magnetic flux, the torque applied ... 07/12/07 - 20070157741 - Torque sensor A torque sensor where a first rotary shaft 1 and a second rotary shaft 2 are disposed on a common axial line L-L, with the first rotary shaft 1 and the second rotary shaft 2 being coupled together by a torsion bar 5, and which detects torsional torque applied between ... 05/24/07 - 20070113683 - Torque sensor system including an elliptically magnetized shaft A torque sensor includes a shaft and a magnetic sensor. The shaft may have at least one active region having an elliptical magnetization. The magnetic sensor may be configured to sense a magnetic field about the shaft, where the magnetic field is representative of a torque applied to the shaft. ... 04/26/07 - 20070089539 - Sensor system including a magnetized shaft A sensor includes a shaft and a magnetic sensor. The shaft may have at least one magnetized active region. The magnetic sensor may be configured to sense a magnetic field about the shaft, and may provide an output representative of torque applied to the shaft, shaft rotational speed and shaft ... 04/26/07 - 20070089538 - Method for manufacturing magnetostrictive torque sensor A method for manufacturing a magnetostrictive torque sensor compriseis the steps of forming magnetostrictive films on a rotating shaft of a magneto-strictive torque sensor, creating magnetic anisotropy in the magnetostrictive films formed in the magnetostrictive film formation step, and demagnetizing the rotating shaft. The demagnetization step is provided in any ... 04/05/07 - 20070074588 - Magnetostrictive torque sensor and electrically powered steering apparatus using same A magnetostrictive torque sensor includes a rotating shaft that is rotated by an applied torque, magnetostrictive films formed around the entire circumferential periphery of a surface of the rotating shaft in at least one location, sensor coils for sensing a change in impedance of the magnetostrictive films, and a torque ... 03/29/07 - 20070068280 - Fabrication of a magnetoelastic torque sensor A method of fabricating a magnetoelastic torque sensor includes plating a magnetoelastic material to a magnetically inert substrate, and its endowment with uniaxial magnetic anisotropy through the creation within the transducer element of stress anisotropy. The plating of magnetostrictive material to the magnetically inert substrate provides a less expensive torque ... 03/08/07 - 20070051188 - Measurement of torsional dynamics of rotating shafts using magnetostrictive sensors A device and method for the non-contact measurement of dynamic torsion in a rotating shaft using magnetostrictive sensors (MsS). The monitoring and detection system have specially configured magnetostrictive signal detectors that include inductive pickup coils, in which signals corresponding to localized shaft torques are induced. The non-contact method for measuring ... 02/15/07 - 20070034021 - Demagnetization-field enhancing magnetometer A magnetometer for a force sensor assembly includes first inner and outer coils that are spaced axially apart from second inner and outer coils. Between the inner and outer coils is a plurality of magnetic strips. These magnetic strips are disposed at axially distinct portions within the inner and outer ... 01/18/07 - 20070012122 - Torque sensor A torque sensor 1 is provided with two shafts 3, 4 (input shaft 3 and output shaft 4) which constitute a shaft member 2, which is a torque detection object, an elastic member 5 which connects the shafts 3 and 4 coaxially, and a torsion angle of the elastic member ... 11/23/06 - 20060260418 - Rotation detector and method for producing the same A rotation detector having a Hall IC in a case-shape housing includes a wiring extending therefrom in a direction of a bent portion of a detector body in accordance with one of plural predetermined directions of a position pin defined by pin receivers when the detector body is molded by ... 11/02/06 - 20060243069 - System for determining working parameters of a magnetic clutch A magnetic clutch has a rotatable input part with first magnets and a rotatable output part with second magnets, the output part being magnetically coupled to the input part. At least one sensor measures a magnetic field or its temporal differentiation and is positioned to measure the magnetic field or ... 10/12/06 - 20060225521 - Torqueshaft magnetic field measurement systems for gas turbine engines A torqueshaft magnetic field measurement system includes a ceramic package enclosing a magnetoresistive sensor for converting a sensed magnetic field into a differential output voltage, an amplifier for converting the voltage into an amplified sensor signal, and a temperature sensor. An electrical cable connects the ceramic package to an electronic ... 09/21/06 - 20060207348 - Detecting torque An apparatus for detecting torque affecting an axle includes a carrier system, located along the axle, and having a central detector segment and external detector segments. The central detector segment and external detector segments interacts such that rotary motion of an external detector segment results in axial motion of the ... 08/31/06 - 20060191356 - Electric power steering device The present invention relates to an electric power steering device provided with a torque sensor for detecting a torque using coil windings arranged in the inside of an electromagnetic yoke. The electric power steering device comprises coil bobbins which are housed in the inside of the electromagnetic yoke; a terminal ... 08/17/06 - 20060179959 - Magnetostrictive torque sensor A magnetostrictive torque sensor comprises a rotary shaft rotating around its center axis and having a magnetostrictive characteristic and a cylindrical ferrite magnetic core disposed at a predetermined distance from the outer periphery of the rotary shaft and coaxially with the rotary shaft and having on its inner peripheral surface ... 08/03/06 - 20060169061 - Removable hall-effect sensor system for stator windings in a rotating electric machine A Hall-Effect sensor assembly for a rotating electric machine comprising a thin, removable annular substrate with Hall-Effect sensors and associated connection wiring mounted on it that slips underneath the wound stator end turns of the stator for the rotating electric machine to make the assembly easily removable for installation and ... 07/27/06 - 20060162469 - Torque sensor and electric steering device using the same A torque sensor is provided with a torsion bar, first and second elongate sleeves respectively secured to one and the other ends of the torsion bar, and a pair of resolvers respectively mounted on the first and second elongate sleeves. First and second stop portions are provided respectively at overlapping ... 07/20/06 - 20060156834 - Torque detecting apparatus In a torque detecting apparatus, in each of two flux concentrating rings, a portion along a circumferential direction is raised outward in a radial direction so that a flux concentrating section is provided that has a plate shape extending on one side in an axial direction. These flux concentrating rings ... 07/06/06 - 20060144166 - Inductive torque sensor In an inductive torque sensor, two rotatable rotor elements (114a, 114b) are mounted axially and adjacent at a distance from the shaft components (112a, 112b) of a shaft (112). An inductive coupling element (18) is mounted about the circumference of each of the rotor elements (114a, 114b). An inductive circuit ... 06/29/06 - 20060137474 - Torque sensor and electric power steering system having same A torque sensor has a torsion bar coaxially in alignment with input and output shafts, a ring shaped magnet fixed to an axial end of the input shaft, a pair of magnetic yokes fixed to an axial end of the output shaft, and a magnetic sensor for detecting magnetic flux ... 06/29/06 - 20060137473 - Reduced axial movement error in a torque-sensing system An improved torque sensing arrangement includes a magnetoelastic ring on a rotatable shaft, along with two or more magnetic field sensors. The ring has at least two magnetic bands magnetized in opposite directions to produce at least two magnetic fields. Alternatively, the rotatable shaft could be magnetized into bands, eliminating ... 06/08/06 - 20060117870 - Torque detecting apparatus A torque detecting apparatus detects torque applied upon a torsion bar of an electric power steering apparatus, as two sensors, which have ratiometric characteristics and have the same characteristics, simultaneously detect the amount of torsion of the torsion bar. With a gain of one of the two sensors set to ... 03/09/06 - 20060048586 - Torque sensor In a torque sensor, a first detection tube (13) made from magnetic material covers a cylindrical magnetic leak prevention member (12) that is made from nonmagnetic material and covers a first shaft (3) made from magnetic material. Magnetic resistance to magnetic flux, which passes through one end of the first ... 03/02/06 - 20060042404 - Magnetostrictive torque sensor and electric steering system A magnetostrictive torque sensor includes first and second magnetostrictive films which are provided at a shaft and have different magnetic anisotropies; a first measurement coil and a second measurement coil which face the first magnetostrictive film; and a third measurement coil and a fourth measurement coil which face the second ... 03/02/06 - 20060042403 - Device for detecting absolute rotation angle and torque A detector of an absolute rotation angle and torque is disclosed. The detector includes a first gear (1) coupled to an input shaft (2) of a torsion-bar unit, a gear A (6) engaging with the first gear (1), and a first detecting section of an absolute rotation angle placed at ... 02/02/06 - 20060021451 - Torque detecting apparatus and electric power steering apparatus A torque detecting apparatus according to the present invention includes a first shaft and a second shaft connected coaxially to each other through a connecting shaft, a permanent magnet fixed to the first shaft, a plurality of soft magnetic members having a collar provided therein, fitted by pressing with the ... 11/24/05 - 20050257626 - Torque measuring device for rotating body A torque measuring device for a rotating body is provided, which includes: a stationary section; a rotary section; a rotary transformer composed of a primary coil disposed at the stationary section, and a secondary coil disposed at the rotary section, wherein an electric power is transmitted from the stationary section ... 11/10/05 - 20050247139 - Magnetic torque sensor including integral sub-unit A pair of magnetic flux collecting rings and a magnetic sensor are integrally covered by a molded resin to form a sub unit of a torque sensor. The pair of rings and sensors are integrated and are in contact with each other, i.e., the magnetic sensor is held in between ... 11/10/05 - 20050247138 - Torque sensor for detecting a shaft torque A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in a magnetic field ... 10/27/05 - 20050235761 - Compact device for measuring the speed and the direction of rotation of an object current receptor means (6) placed between the magnetic detection device (2) and the conductor (4) that create, from signals coming from said magnetic detection device (2), a modulation of the current (Iout) flowing in the conductor (4), said modulated current (Iout) reflecting both the speed and the direction of rotation ... 10/13/05 - 20050223820 - Torque detecting apparatus and manufacturing method thereof A detecting unit for detecting a torque applied to a rotor according to rotation of the rotor having an input shaft and an output shaft connected with each other by a torsion bar and a detection circuit board connected with the detecting unit are molded with synthetic resin material to ... 09/22/05 - 20050204831 - Torque sensor A torque sensor includes a substantially tubular giant magnetostrictive member, a shaft passing through the inner bore of the giant magnetostrictive member and capable of transmitting torque to the giant magnetostrictive member, and a detection coil for detecting changes in the magnetic permeability or remnant magnetization of the giant magnetostrictive ... 09/22/05 - 20050204830 - Magnetostrictive torque sensor shaft and method for manufacturin the same The present invention improves the magnetization shielding properties of a torque sensor shaft for a magnetostrictive torque sensor. Specifically, according to the present invention, a magnetostrictive torque sensor shaft 2 is provided with a magnetostrictive detection portion 5 and an engaging portion 6 for engaging a power transmission shaft, wherein ... 09/08/05 - 20050193835 - Power steering apparatus and torque sensor Power steering apparatus includes input and output shafts connected by a torsion bar; and a coil unit disposed around one of the shafts and arranged to sense torque between the input and output shafts. A housing includes an axial bore in which the shafts and coil unit are installed. The ... 09/08/05 - 20050193834 - Torque sensor A torque sensor having a sensor element, wherein the sensor element is manufactured in accordance with the manufacturing steps of applying a first current pulse to the sensor element, wherein the first current pulse is applied such that there is a first current flow in a first direction along a ... 07/14/05 - 20050150312 - Torque detecting apparatus The torque detecting apparatus comprises: an input shaft to which a torque is inputted; an output shaft for outputting the inputted torque; a connecting shaft for connecting the input shaft and the output shaft to transmit the torque; a coil for detecting a torque applied from the input shaft to ... 07/07/05 - 20050145042 - Magnetic sensor The present invention discloses a magnetic sensor, comprising a circular base, the center of said base having a circular hole, the lower surface of said circular base being provided with a flange; and a plurality of ring-shaped permanent magnets of varying sizes, said ring-shaped permanent magnets having a plurality of ... 06/23/05 - 20050132817 - Method and means for monitoring torque in a hydraulic power unit The present invention is directed towards a hydraulic power unit including a housing, an internal hydraulic power means, an external hydraulic power means, and a mechanical power shaft associated with the hydraulic power means. In addition, the hydraulic power unit comprises a transducer adapted for measuring torque mounted in the ... 06/16/05 - 20050126309 - Highly reliable torque sensor A torque sensor is provided which consists of a magnet, an assembly of magnetic rings, and a magnetic sensor. The magnetic rings have claws arrayed thereround at regular intervals. Each of the claws of one of the rings is interposed between adjacent two of the claws of the other ring. ... ### FreshPatents.com Support |