| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073862333 |
Detecting magnetostrictive or magnetoelastic property
| 78 |
| 073862332 |
Variable air gap in a magnetic core | 4 |
| 20100180696 | SYSTEMS INVOLVING COMPACT TORQUE SENSING - A torque sensor system comprising, an inner tooth, an outer tooth disposed on an outer yoke member centered on an axis spaced radially from the inner tooth, a plate member, a retainer member operative to retain the outer yoke member and the plate member, a magnet member centered on the axis disposed between the inner tooth and the outer tooth, an air gap partially defined by the plate member and the outer yoke member, and a magnetosensitive element disposed in the air gap operative to sense a magnetic flux induced by an angular displacement of the magnet member relative to the inner tooth and the outer tooth. | 07-22-2010 |
| 20100319467 | INDUCTIVE TORQUE SENSOR - The present invention relates to an inductive torque sensor ( | 12-23-2010 |
| 20120260746 | TORQUE SENSOR - The present disclosure relates to a torque sensor configured to axially magnetize a magnet and simplify a stator structure facing the magnet, whereby dimensions and shapes of members capable of collecting magnetism can be easily controlled to provide a torque sensor excellent in operational reliability, the torque sensor including a ring-shaped and axially-magnetized magnet connected to one of an input shaft of a steering wheel and an output shaft; and a stator including a ring-shaped body axially discrete from the magnet and a plurality of holes vertically penetrating the body, whereby structure of the torque sensor is simplified to enhance a concentrated efficiency of magnetic change. | 10-18-2012 |
| 20160153852 | TORQUE ADJUSTMENT AND MEASUREMENT SYSTEM | 06-02-2016 |
| Entries |
| Document | Title | Date |
|---|
| 20090120209 | SYSTEMS AND METHODS FOR TEMPERATURE COMPENSATING TORQUE SENSORS - Apparatus, systems, and methods are provided for temperature compensating a torque sensor. One apparatus includes a shaft temperature detector and a temperature compensation circuit configured to alter tensile and compression voltages representative of tensile and compression stresss, respectively, due to a torque being applied to the shaft based on shaft temperature. A system includes a sensor configured to generate tensile and compression voltages representative of tensile and compression stresss, respectively, due to a torque being applied to a shaft, a shaft temperature detector, and a junction box. The junction box is configured to alter the tensile and compression voltages based on shaft temperature. One method includes receiving tensile and compression voltages representative of tensile and compression stresss, respectively, due to torque being applied to a shaft, altering the tensile and compression voltages based on shaft temperature, and determining the amount of torque based on the altered tensile and compression voltages. | 05-14-2009 |
| 20090241691 | METHOD AND APPARATUS FOR MEASURING FORCE PARTICULARLY TORQUE - A method and apparatus for measuring the force applied by a first member coupled to a second member by a connecting body, by: transmitting a cyclically-repeating energy wave through the connecting body from a first location thereon to a second location thereon; measuring the transit time of the cyclically-repeating energy wave from the first location to the second location; and utilizing the measured transit time to produce a measurement of the force. In the preferred described embodiment, the connecting body is a fastening plate which fastens a drive shaft to a driven shaft and measures the torque output of the drive shaft. | 10-01-2009 |
| 20090293642 | ARRANGEMENT FOR THE NON-CONTACT MEASUREMENT OF TORQUE - An arrangement for the non-contact measurement of torque on a shaft of a transmission. The arrangement having at least one detector ( | 12-03-2009 |
| 20100326208 | DEVICE FOR DETERMINING A TORQUE AND/OR A ROTATIONAL ANGLE OF A SHAFT - A device for determining a torque and/or a rotational angle of a shaft, which has a circuit carrier, which is concentric to the shaft, and on which at least two current-conducting printed conductor sections are situated. The device additionally has one transducer element, which is concentric to the shaft and is rotatable in relation to the circuit carrier, having at least one first subarea made of electrically conductive material and at least one second subarea made of electrically nonconductive material. Upon application of a torque to the shaft, the transducer element rotates in relation to the circuit carrier, whereby an overlap area between the printed conductor sections and the first subarea(s) of the transducer element changes and thus a change in an inductance of the printed conductor sections occurs. | 12-30-2010 |
| 20110023627 | METHOD AND DEVICE FOR PROVIDING A TORSION ELEMENT OF A TORQUE SENSOR WITH MAGNETIZATION - The present invention relates to a method for providing a one- or multipart torsion element of a torque sensor with at least one magnetic encoding by applying at least one current pulse to the torsion element. It is provided that the variation of the current pulse over time is formed. Moreover, the present invention relates to a device for providing a one- or multipart torsion element of a torque sensor with at least one magnetic encoding. | 02-03-2011 |
| 20120234107 | NON-CONTACT TORQUE MEASUREMENT APPARATUS AND METHD - Disclosed is an apparatus and method for accurately measuring torque in a rotating shaft. The apparatus comprises axially spaced magnet-detector pairs, mounted to rotate with the shaft and means for sensing relative rotation between the magnets. | 09-20-2012 |
| 20120285266 | TORQUE SENSOR - Two magnetic flux collecting rings are installed into a corresponding position axially located between two magnetic yokes. The magnetic flux collecting rings collect a magnetic flux from the magnetic yokes. The magnetic flux collecting rings at least partially overlap with the magnetic yokes in a view taken in the axial direction. | 11-15-2012 |
| 20130019693 | ROTATION ANGLE AND TORQUE SENSOR - The rotation-angle and torsion sensor has two gears that are connected so as not to turn with shaft sections, which [gears] mesh with gears. On one of the gears a unipolar or multipolar magnet is attached. On the other gear, magnetic flux guides matching to number of poles are attached, that are configured as L shapes. One leg of the flux tranducers points in the direction of the multipolar magnet while the other legs run parallel to the gear and in fact one on one side and the other on the other side of the gear, with these legs enclosing a second sensor between them that is situated in the gear. | 01-24-2013 |
| 20130152702 | TORQUE SENSOR APPARATUS - A torsion bar has first and second end portions that are fixed to input and output shafts, respectively, to coaxially connect between the input and output shafts. A multipolar magnet is fixed to the input shaft. First and second magnetic yokes are fixed to the output shaft. Magnetic sensors are held between magnetic flux collecting portions of first and second magnetic flux collecting rings, which are magnetically coupled to the first and second magnetic yokes, respectively. In each of the magnetic flux collecting portion, a connecting section and a mounting section are configured such that a width of the connecting section is smaller than a width of the mounting section. | 06-20-2013 |
| 20130220030 | TORQUE DETECTION DEVICE, METHOD OF MANUFACTURING TORQUE DETECTION DEVICE, AND ELECTRIC POWER STEERING SYSTEM INCLUDING TORQUE DETECTION DEVICE - A torque detection device includes: a magnetic flux collecting unit that includes an annular holder formed by resin molding and having a through-hole that passes through the holder in a radial direction, a first magnetic flux collecting ring and a second magnetic flux collecting ring that are fitted to an inner periphery of the holder so as not to cover the through-hole, and a magnetic shield that is fitted to an outer periphery of the holder so as to cover the through-hole; and a sensor housing that is made of resin supplied onto an outer periphery of the magnetic flux collecting unit, and that is formed so as to be integrated with the magnetic flux collecting unit. | 08-29-2013 |
| 20150330849 | TORQUE SENSOR AND ELECTRIC POWER STEERING SYSTEM - A torque sensor includes a first magnet fixed to a first shaft, a tubular magnetic yoke assembly in which a magnetic yoke core is molded with a resin member, and a first magnetic sensor that detects a magnetic flux from the first magnet induced by the magnetic yoke core. The torque sensor also includes a collar made of a ferromagnetic body that is fixed to an inner circumference of the magnetic yoke assembly and to which a second shaft is press-fitted and fixed, and a second magnet for an index sensor that is disposed on an outer circumference of the magnetic yoke assembly. At least a part of the collar is disposed between the magnetic yoke core and the second magnet with respect to an axial direction of the magnetic yoke assembly. | 11-19-2015 |
| 20150369679 | TORQUE SENSOR AND ELECTRIC POWER STEERING SYSTEM - A torque sensor includes a pair of magnetic yokes arranged in a magnetic field from a multipolar magnet that rotates integrally with, for example, a first shaft, and the magnetic yokes rotate integrally with, for example, a second shaft. The torque sensor includes magnetic collecting elements magnetically coupled to the respective magnetic yokes and a magnetic flux detecting element. The magnetic collecting elements have a pair of magnetic collecting portions (magnetic collecting protrusions) facing each other. The magnetic flux detecting element includes a circuit board with a cutout formed therein and a Hall IC having a Hall element arranged between the magnetic collecting portions, and the Hall IC is mounted parallel to the circuit board so as to extend over the cutout. At least a part of one of the magnetic collecting portions is arranged in the cutout. | 12-24-2015 |
| 20150377724 | TORQUE MEASURING DEVICE - A torque measuring device, in particular suitable for a bottom bracket ( | 12-31-2015 |
| 20160047703 | APPARATUS FOR MEASURING TORQUE OF MOTOR - An apparatus for measuring torque of a motor includes: a shaft provided in a rotor of the motor and having an opening, a strain gauge inserted into the opening of the shaft and configured to measure torque of the motor, a transmitter in communication with the strain gauge, and a receiver in communication with the transmitter and configured to receive power from a vehicle. | 02-18-2016 |
