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| Number | Title | Issue Date |
| 7370541 | 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. ... | 05/13/2008 |
| 7363827 | 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... | 04/29/2008 |
| 7347106 | Torque sensor with inverted sensing element and integral shaft housing Torque sensing methods and systems are disclosed. In general, a sensing element and a sensor housing can be provided for maintaining the sensing element. A plurality of wirebond posts can be assembled perpendicular to a plane of the sensing element. The sensing elem... | 03/25/2008 |
| 7320255 | Torque sensor magnetometer The magnetometer assembly according to this invention includes a first coil assembly and a second coil assembly for detecting separate magnetic fields along an axial portion of a torque transducer. The first and second coil assemblies are driven by independently adj... | 01/22/2008 |
| 7309396 | Giant magnetostrictive material and heat treatment method for giant magnetostrictive material Restoring magnetostriction characteristics without causing fusion of rod. By performing heat treatment on a giant magnetostrictive material within the temperature range of 750 to 860° C., working distortion is removed while bleeding of an R-rich phase on a rod surf... | 12/18/2007 |
| 7302867 | Magnetic transducer torque measurement A magnetic transducer element is formed by rotating an integral region of a shaft about an axis in the presence of a magnetic source. An annulus of magnetization results in having its magnetization in the axial direction. The exterior magnetic field emanated by the ... | 12/04/2007 |
| 7293472 | 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 di... | 11/13/2007 |
| 7275451 | Electric power steering device An electric power steering device having a torque sensor for detecting torque by using a coil provided in an electromagnetic yoke. A terminal block projects to the radial outside and axial outside with respect to an axial line of a substantially cylindrical coil bob... | 10/02/2007 |
| 7263904 | Torque-detecting device To provide a torque detecting device having a sufficient mechanical strength, capable of accomplishing an accurate torque measurement, having a processability excellent for mass-production, and effective to eliminate problems associated with damages which would be b... | 09/04/2007 |
| 7256505 | Shaft mounted energy harvesting for wireless sensor operation and data transmission A device for monitoring a rotating shaft is provided. The device measures strain in the shaft and provides angular velocity and torque in the shaft. The device includes a sensor, sensor conditioning circuitry, a microprocessor, and a transmitter, all located on a ro... | 08/14/2007 |
| 7246531 | 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 ... | 07/24/2007 |
| 7239123 | Multiplexed dual-purpose magnetoresistive sensor and method of measuring current and temperature The present invention determines temperature and current from resistance measurements of a single magnetoresistive sensor. A dual-purpose sensor includes the magnetoresistive sensor having a single pair of terminals. The sensor is multiplexed under separate current ... | 07/03/2007 |
| 7225686 | Torque sensing apparatus 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 ch... | 06/05/2007 |
| 7219552 | Scalable high sensitivity magnetostrictive pressure sensor A pressure sensor 10 includes a casing 12 configured to be able to be filled with a fluid 16 such as a liquid or a gas, in which at least part of a surface contacting this fluid 16 is formed of a giant magnetostrictive member 18 ma... | 05/22/2007 |
| 7219564 | Magnetised transducer element for torque or force sensor A magnetic torque transducer for a structure such as a disc through which torque is transmitted between a central shaft to which the disc is mounted and an outer periphery such as a gear wheel. The intervening region through which torque is transmitted is magnetized... | 05/22/2007 |
| 7218098 | Sensing an operating parameter of a target concealed from a sensor by an interposed component An assembly that includes a target component mounted for rotation about an axis, a sensor mounted adjacent the inner member and directed toward the inner member to measure the rotational speed of the target component and an outer component interposed between the sen... | 05/15/2007 |
| 7212895 | Magnetic sensor A magnetic flux is sensed within a gap at a first location between two portions of a vehicle body/structure and a signal generated responsive thereto controls an element of the vehicle, wherein the magnetic flux is responsive to a disturbance of the vehicle body/str... | 05/01/2007 |
| 7209844 | Magnetic crash sensor A first magnetic field generated by a first coil operatively associated with a first portion of a vehicle interacts with at least one conductive element operatively associated with or at least a part of a second portion of the vehicle so as to generate an eddy curre... | 04/24/2007 |
| 7201044 | Torque sensor integrated with engine components A torque sensor system and method. An automotive engine is located opposite a torque converter, such that a shaft extends from the engine and interacts with the torque converter. A target is located between the engine and torque converter. One or more torque sensors... | 04/10/2007 |
| 7190161 | Magnetic sensor A coil is operatively associated with a magnetic circuit of a vehicle body, and is adapted to cooperate with a time-varying magnetic flux in the vehicle body that is responsive to a condition of the vehicle body sensed by the magnetic sensor. An electrical circuit i... | 03/13/2007 |
| 7143656 | 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. Alternative... | 12/05/2006 |
| 7140258 | Magnetic-based force/torque sensor A force transducer element (20) comprises a body (22) of magnetisable material having at least one magnetised region (30) at an angle, say 45°, to the force-sensing direction (P—P). Preferably there are a plurality of parallel magnetised regi... | 11/28/2006 |
| 7127797 | Imparting compressive hoop stress into a bonded magnetoelastic element by means of diameter reduction of the underlying shaft A method for producing a low-hysteresis magnetoelastic element comprising applying a magnetoelastic material onto a metal substrate. After the magnetoelastic element is securely bonded to the underlying shaft, a reduction in the outside diameter of the shaft draws t... | 10/31/2006 |
| 7124552 | Device for screwing screw-type closures onto containers A device for screwing a screw cap onto a container with a magnetic coupling arranged between a spindle which can be driven and the closing head, and in the circumferential area of permanent magnets connected to the closing head, an inductive detector for determining... | 10/24/2006 |
| 7117752 | Pulsed torque measurement A method of measuring torque in a part, for example a shaft, in which at least one coil, wound about an axis of the part about which axis torque is applied, is A.C. energized to create an alternating polarity magnetic field in the part, which field emanates a compon... | 10/10/2006 |
| 7113874 | Magnetic crash sensing method A signal generated responsive to a magnetic field in a magnetic circuit is decomposed into first and second filtered signals, wherein, at at least one first frequency, a magnitude of a component of the first filtered signal is greater than that of the second filtere... | 09/26/2006 |
| 7095198 | Speed sensor for a power sensor module A power sensor module suitable for automotive and other high volume applications combines speed sensing and torque sensing operations into a single unit. A magnetic speed sensor is utilized for speed sensing. A power measurement can be derived from torque and speed.... | 08/22/2006 |
| 7085638 | Steering angle sensor assembly including reduction gear and logic module A steering angle sensor assembly is for use with a vehicle having a rotatable steering mechanism. The assembly includes a first rotational indexing member operably couplable to the steering mechanism for rotation therewith. The steering mechanism and the first index... | 08/01/2006 |
| 7055399 | Unshunted collarless torsion shaft for electronic power-assisted steering systems There is provided a torsion shaft for the electronic power-assisted steering (“EPAS”) system of a vehicle. The torsion shaft designed for the EPAS system is made up of a shaft, where a first portion of the shaft is magnetized, and a second portion of the shaft i... | 06/06/2006 |
| 7024946 | Assembly for measuring movement of and a torque applied to a shaft The subject invention provides an assembly for measuring movement of and a torque applied to a shaft extending between first and second ends and being hollow, specifically for measuring rotation and twisting of the shaft. A permanent magnet is disposed within the sh... | 04/11/2006 |
| 7001671 | Kinetic sprayed electrical contacts on conductive substrates The present invention is directed to electrical contacts that comprise spaced electrically conductive particles embedded and bonded into the surface of conductors in which the particles have been kinetically sprayed onto the conductors with sufficient energy to form... | 02/21/2006 |
| 6997065 | Torque measurement apparatus Torque in a shaft is detected by means of non-contacting sensors sensing a torque-dependent magnetic field emanated by an integral transducer region of the shaft that is circumferentially or longitudinally magnetized. The shaft is driven by a motor and subject to a ... | 02/14/2006 |
| 6978686 | Torque sensor In a torque sensor having a magnetic metal film with magnetic anisotropy attached to a torque transmission shaft, and an exciting coil and a pair of detector coils each installed near the magnetic metal film, outputs of the detector coils and a reference signal are ... | 12/27/2005 |
| 6966232 | Torque sensor In a torque sensor having a magnetic metal film with magnetic anisotropy attached to a torque transmission shaft and an exciting coil and a detector coil each installed near the magnetic metal film, there is provided a reference voltage generator that supplies an ac... | 11/22/2005 |
| 6959612 | Magnetic-based torque/speed sensor Torque is measured in the chain wheel (50) of a pedal cycle by a non-contacting magnetic-based transducer. A magnetising source (70), a D.C. type of source such as a permanent magnet is positioned adjacent the chain wheel (50) to induce an arcua... | 11/01/2005 |
| 6957590 | Rotational angle detecting apparatus and torque detecting apparatus A calculation processing circuit 10 executes a predetermined operation on the detection signals of a plurality of magnetic sensors A and B, disposed to face a target 3a made of a magnetic material and provided on a rotating member 6, for ... | 10/25/2005 |
| 6931940 | Magnetostrictive strain sensor with hall effect A magnetostrictive strain sensor includes a Hall effect sensor for measuring the change in magnetic flux a magnetic circuit including a magnetostrictive element. A strain sensing apparatus includes one or more magnetic elements defining a magnetic circuit having a g... | 08/23/2005 |
| 6929518 | Method for controlling a shift procedure for a marine propulsion system A shifting apparatus for a marine propulsion device incorporates a magnetoelastic elastic sensor which responds to torque exerted on the shift shaft of the gear shift mechanism. The torque on the shift shaft induces stress which changes the magnetic characteristics ... | 08/16/2005 |
| 6917196 | Method and apparatus generating and detecting torsional wave inspection of pipes or tubes A method and apparatus for implementing magnetostrictive sensor techniques for the nondestructive evaluation of pipes or tubes. A magnetostrictive sensor generates guided waves in a pipe or tube, which waves travel therethrough in a direction parallel to the longitu... | 07/12/2005 |
| 6912911 | Inductively coupled stress/strain sensor An improved method of sensing strain allows measurements of stress, torque, vibration and other loads imposed on a body without physical contact between the body/sensor and the monitoring equipment. An induction loop is at least partially comprised of a magnetostric... | 07/05/2005 |
