| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073862690 | By measuring magnetic properties | 26 |
| 20080295611 | Sensor Array - The invention relates to a sensor array, especially for measuring/detecting magnetic fields and/or torsion and/or mechanical stress, comprising a magnetizable/magnetic, particularly soft magnetic electrically conducting conductor assembly that is provided with a first conductor section in which dynamic, particularly helical magnetization can be generated, and at least one second conductor section in which especially helical anisotropy is or can be generated, magnetization being conveyable from a first into a second conductor section and being detectable by means of a tension generated above a second conductor section because of the magnetization conveyed. The invention further relates to a method for measuring/detecting magnetic fields and/or torsion and/or mechanical stress. According to said method, dynamic, particularly helical magnetization is generated in a first conductor section of a magnetizable/magnetic, especially soft magnetic electrically conducting conductor assembly while especially helical anisotropy is or can be generated in at least one second conductor section, magnetization being conveyed from a first into a second conductor section and being detected by means of a tension generated above a second conductor section because of the magnetization conveyed. | 12-04-2008 |
| 20090114040 | MAGNETOSTRICTIVE LOAD SENSOR AND MOVABLE OBJECT INCLUDING THE SAME - A magnetostrictive load sensor includes a coil, a magnetic path forming member composed of a magnetic material, a rod composed of a magnetic material, two load transmitting members, a housing, and two load applicators. Openings are respectively formed at the approximate centers at both ends of the magnetic path forming member that covers the outer periphery and both ends of the coil. The rod is inserted into a through hole of the coil and the openings. Both ends of the rod respectively project through the openings, and the rod is arranged so as not to come into contact with the magnetic path forming member. Both the ends of the rod are respectively supported by the load transmitting members. Respective portions of the load transmitting members project outward through an opening of the housing. | 05-07-2009 |
| 20090145245 | Method for apparatus for a drop indicator - The present invention relates to an apparatus and method for a drop indicator having a magnet installed therein. The drop indicator according to the invention is used to determine whether a product has ever been dropped or impacted, either in delivery or in use, by inspecting changes in the original condition of the magnet caused by the interaction between the magnetic force and the acceleration of gravity, inertia force, and colliding force, etc. generated upon collision. Take a cell phone or a PDA, for example, changes in the indicative material of the drop indicator will help decide whether the faulty product has ever been dropped or impacted in delivery or in use, so that liability can be determined. | 06-11-2009 |
| 20090199659 | GASKET - A gasket according to the present invention is for sealing a valve or pipe used in a high-pressure gas supplying equipment, which is comprised of a polymer material containing magnetic particles. Also, in a determination method of deterioration and damages of a gasket according to the present invention, the aforementioned gasket is used as the gasket for sealing a valve or pipe in a high-pressure gas supplying equipment, and the magnetic force of the gasket is measured to determine the deterioration and the damages of the gasket. | 08-13-2009 |
| 20100000335 | Force bearing value and position detection for magnetic elastic body of magnetic conduction - The present invention discloses that the magnetic elastic body of magnetic conduction is stretched or shrunk by changes of passing magnetic fluxes or by the internal stress or external pushing or pulling force, the peripheral magnetic field surrounding the force bearing point is varied according to the stretching push or shrinking push, wherein its force bearing value or position is calculated by comparing the magnetic field distribution before and after the force bearing. | 01-07-2010 |
| 20100005908 | Pressure Distribution Sensor Utilizing Electromagnetic Coupling - A pressure distribution sensor utilizing electromagnetic coupling in which alignment of electromagnetically coupled coils is facilitated, and a force in a slip direction can be detected. The pressure distribution sensor utilizing electromagnetic coupling has a detection surface comprises a plurality of first loop wires ( | 01-14-2010 |
| 20100116066 | MAGNETOSTRICTIVE LOAD SENSOR AND MOVABLE UNIT COMPRISING SAME - A magnetostrictive load sensor includes a coil with a through hole, a load sensing member disposed in the through hole, first and second magnetic circuit defining members which are joined together so as to cover the coil and which together define a magnetic circuit to pass a magnetic flux that has been generated by current flowing through the coil, and a housing that houses the coil. The load sensing member and the first and second magnetic circuit defining members are arranged together. Each of the first and second magnetic circuit defining members includes a first portion that contributes to defining the magnetic circuit and a second portion that is arranged so as to extend from the first portion and extend out of the magnetic circuit. The housing holds and fixes together the respective second portions of the first and second magnetic circuit defining members. | 05-13-2010 |
| 20100175487 | MAGNETIC FORCE SENSOR - A magnetic force sensor includes: an action portion on which an external force acts; a sensing unit converting a force working on the action portion into an electric signal; and an outer frame having an elastic body elastically supporting the action portion and storing the sensing unit therein. The sensing unit includes a magnetic flux generation source connected with the action portion and a magnetoelectric transducer fixed on the outer frame and the magnetic flux generation source has a magnetic body therewith that controls flow of magnetic fluxes generated by the magnetic flux generation source. | 07-15-2010 |
| 20100236339 | BIAXIAL STRESS MANAGEMENT - A method of measuring biaxial stress in an object of a ferromagnetic material in which material in a region ( | 09-23-2010 |
| 20110308330 | Dynamic Signal Torque Sensor - A magnetic based force measuring sensor and a magnetic based force measuring method allowing force measuring without the need of pre-processing the sensing object, being realized with a magnetic field generating unit, a magnetic field sensing unit, and an magnetic field coupling element. The inductive coupling element couples the magnetic field generating unit and the magnetic field sensitive unit. The magnetic field coupling element comprises a force input section and a force output section. The magnetic field coupling element comprises a material section between the force input section and the force output section, the material section having a permeability depending on a force impact. | 12-22-2011 |
| 20120152033 | CHAIN FORCE MEASURING DEVICE FOR MOUNTING ON A BICYCLE - A chain force measuring device for measuring a chain force of a bicycle includes a dropout body unit having frame and axle connecting portions which are respectively connected to a frame fork and a wheel axle to define an accommodation space therebetween, and a hall sensing unit having a sensor extending from the frame connecting portion to spacedly confront a magnetic element which is disposed on a slidable carrier. By shifting of the magnetic element with the carrier due to the chain force exerted on the wheel axle, a magnetic field generated thereby is changed so as to give off a signal indicative of the magnitude of the chain force. | 06-21-2012 |
| 20120216631 | FORCE MEASURING SYSTEM, METHOD FOR MEASURING FORCES AND TORQUES ON A ROTATING BODY AND WIND TUNNEL WITH A MODEL ARRANGED THEREIN AND COMPRISING AT LEAST ONE PROPELLER WITH A FORCE MEASURING SYSTEM - A force measuring system is provided for measuring forces on a rotating body that includes, but is not limited to a force measuring device, which is mounted on the rotating body, as well as a position sensing unit for detecting the rotation of the rotating body and an evaluation unit, which is connected to the force measuring device and the position sensing unit. The evaluation unit is configured for recording a force value measured by the force measuring device depending on the detected position of the rotating body. The force measuring system allows the forces and torques on a rotating body to be determined precisely and as flexibly as possible, independently of the prevailing rotation speed of the rotating body. | 08-30-2012 |
| 20120227513 | MAGNETIC FORCE SENSOR - The present invention provides a magnetic force sensor that can precisely detect and correct variations in a magnetic field generated by a magnetic flux generating source. Therefore, a displacement magneto-electric transducer, which detects a change in the magnetic field caused by an external force, and a fixed magneto-electric transducer, where the change in the magnetic field caused by the external force does not occur, are provided to face end sides of magnetic poles of the magnetic flux generating source. The fixed magneto-electric transducer detects a variation of the magnetic field caused by, for example, changes with time and environmental variations such as a temperature rise in the interior of the sensor. On the basis of a detection amount thereof, an operational section performs a correction operation, so that a sensitivity coefficient or an offset of the displacement magneto-electric transducer is corrected. | 09-13-2012 |
| 20130061690 | PRESSURE GAUGE AND PRESSURE DETECTING CIRCUIT THEREOF - The present invention provides a pressure detecting circuit, which is electrically connected to a coil to receive an induced electromotive force from the coil, including a movement detecting unit electrically connected to the coil to receive the induced electromotive force from the coil and find a distance of the movement of the magnetic device according to the induced electromotive force; and a converting unit electrically connected to the movement detecting unit to generate the voltage signal to indicate the distance. In addition, the present invention further provides a pressure gauge incorporated with the pressure detecting circuit. | 03-14-2013 |
| 20130205916 | MEASUREMENT APPARATUS AND METHOD - A measurement module that measures force being applied to a man-powered machine includes: a strain sensor that detects strain of a crank of the bicycle configured to transmit force being applied from a user through the crank and one front gear selected among one or more front gears; an MM magnetic sensor that detects the crank passing through a predetermined position; and an MM control part. The MM control part calculates a rotation angle of the crank based on an elapsed time from a time the crank passes through the predetermined position that the sensor has detected, calculates force applied to the crank based on a strain amount of the crank that the strain sensor has detected, associates the rotation angle with the force applied to the crank to calculate distribution of the force applied from the user. | 08-15-2013 |
| 20140020481 | ACTIVE MECHANICAL FORCE SENSOR - A contactless force measurement sensor for measuring an applied force onto an object is provided. The contactless force measurement sensor includes a first facing orientation which facing orientation defines an orientation pointing towards a surface of the object, a first magnetic field generating unit being adapted for generating a magnetic field towards the facing orientation, a first magnetic field detector unit being adapted for detecting a first magnetic field which field being generated by the first magnetic field generating unit and being influenced by an applied force to be measured, wherein the first magnetic field detector unit is further adapted for outputting a first signal being representative for the detected magnetic field, and an evaluating unit being adapted for evaluating a signal strength of the first signal and determining the applied force based on the first signal. | 01-23-2014 |
| 20140090486 | PRESSURE SENSOR, AUDIO MICROPHONE, BLOOD PRESSURE SENSOR, AND TOUCH PANEL - According to one embodiment, a pressure sensor includes a substrate, a first electrode, a second electrode, a first magnetic layer, a second magnetic, a spacer layer, a third magnetic layer. The substrate includes a first region and a second region. The first electrode is provided on the first region. The second electrode is provided on the first electrode. The first magnetic layer is provided between the first electrode and the second electrode. The second magnetic layer is provided between the first electrode and the first magnetic layer or between the first magnetic layer and the second electrode. The spacer layer is provided between the first magnetic layer and the second magnetic layer in a stacking direction of layers from the first electrode to the second electrode. The third magnetic layer is provided continuously with the second magnetic layer on the second region. | 04-03-2014 |
| 20140137668 | PRESSURE SENSOR, MICROPHONE, BLOOD PRESSURE SENSOR, AND TOUCH PANEL - According to one embodiment, a pressure sensor includes a base unit, a film unit, and a plurality of sensing elements. The plurality of sensing elements is provided on the film unit radially with respect to a centroid of the film unit. The plurality of sensing elements has a first side and a second side intersecting the first side. Each of the plurality of sensing elements includes a first magnetic layer, a second magnetic layer, and an intermediate layer. Each of the plurality of sensing elements has a shape anisotropy characterized by a length of the first side being longer than a length of the second side intersecting the first side. The plurality of sensing elements is provided at lines having radial configurations extending from the centroid to have a prescribed angle between the first side and the line. | 05-22-2014 |
| 20140260681 | Manual Manipulation Apparatus - A manual manipulation apparatus including a frame assembly, at least one handle associated with frame assembly, a mounting structure configured for mounting of a computer device relative to the frame assembly and an optional glide base connected to the frame assembly, the glide base defining an area of reduced friction. The handle can be configured as a grip handle which allows a gripping force to be applied and indicated. | 09-18-2014 |
| 20150068326 | MAGNETIC FORCE SENSOR - The present invention provides a magnetic force sensor that can precisely detect and correct variations in a magnetic field generated by a magnetic flux generating source. Therefore, a displacement magneto-electric transducer, which detects a change in the magnetic field caused by an external force, and a fixed magneto-electric transducer, where the change in the magnetic field caused by the external force does not occur, are provided to face end sides of magnetic poles of the magnetic flux generating source. The fixed magneto-electric transducer detects a variation of the magnetic field caused by, for example, changes with time and environmental variations such as a temperature rise in the interior of the sensor. On the basis of a detection amount thereof, an operational section performs a correction operation, so that a sensitivity coefficient or an offset of the displacement magneto-electric transducer is corrected. | 03-12-2015 |
| 20150082917 | STRAIN SENSING ELEMENT, PRESSURE SENSOR, MICROPHONE, BLOOD PRESSURE SENSOR, AND TOUCH PANEL - According to one embodiment, a strain sensing element includes a film unit, and a sensing unit. The film unit has a film surface and is capable of being deformed. The sensing unit includes a first sensing element and a second sensing element. The first sensing element is provided between a part of the film unit and the second sensing element. The first sensing element includes a first magnetic layer having a changeable magnetization with a deformation of the film unit, a second magnetic layer provided apart from the first magnetic layer, and a first spacer layer provided between the first and second magnetic layers. The second sensing element includes a third magnetic layer having a changeable magnetization with the deformation of the film unit, a fourth magnetic layer provided apart from the third magnetic layer, and a second spacer layer provided between the third and fourth magnetic layers. | 03-26-2015 |
| 20150082918 | STRAIN SENSING ELEMENT, PRESSURE SENSOR, MICROPHONE, BLOODPRESSURE SENSOR, AND TOUCH PANEL - According to one embodiment, a strain sensing element is provided on a film unit configured to be deformed. The strain sensing element includes a functional layer, a first magnetic layer, a second magnetic layer, and a spacer layer. The functional layer includes at least one of an oxide and a nitride. The second magnetic layer is provided between the functional layer and the first magnetic layer. A magnetization of the second magnetic layer is variable in accordance with a deformation of the film unit. The spacer layer is provided between the first magnetic layer and the second magnetic layer. At least a part of the second magnetic layer is amorphous and includes boron. | 03-26-2015 |
| 20150082919 | STRAIN SENSOR, PRESSURE SENSOR, MICROPHONE, BLOOD PRESSURESENSOR, PERSONAL DIGITAL ASSISTANT, AND HEARING AID - According to one embodiment, a strain sensor includes: a base; a strain sensing element; a magnetic field sensing element; and a processing unit. The strain sensing element includes a first magnetic layer having a first magnetization; a second magnetic layer having a second magnetization; and a first intermediate layer. In the strain sensing element an angle between a direction of the first magnetization and a direction of the second magnetization changes in accordance with a strain. The magnetic field sensing element includes a third magnetic layer having a third magnetization; a fourth magnetic layer having a fourth magnetization; and a second intermediate layer. In the magnetic field sensing an angle between a direction of the third magnetization and a direction of the fourth magnetization changes in accordance with a magnetic field. | 03-26-2015 |
| 20150143923 | LOAD SENSOR, LOAD DETECTOR INCLUDING LOAD SENSOR, AND METHOD FOR DETECTING LOAD - A load sensor includes a core having a hollow part provided therein and containing magnetic material and a coil attached to the core. A magnetic path along which a magnetic flux generated by a current flowing in the coil is formed along a circumference direction of the hollow part. The core has a load-receiving portion that receives a load at a surface of the core located in a crossing direction crossing a plane along which the magnetic path is formed. | 05-28-2015 |
| 20150292962 | SYSTEM AND METHOD OF MAGNETIC SHIELDING FOR SENSORS - A system includes a magnetostrictive sensor. The magnetostrictive sensor includes a driving coil configured to receive a first driving current and to emit a first magnetic flux portion through a target and a second magnetic flux portion. The magnetostrictive sensor also includes a first sensing coil configured to receive the first magnetic flux portion and to transmit a signal based at least in part on the received first magnetic flux portion. The received first magnetic flux portion is based at least in part on a force on the target. The magnetostrictive sensor further includes a magnetic shield disposed between the driving coil and the first sensing coil. The magnetic shield is configured to reduce the second magnetic flux portion received by the first sensing coil. | 10-15-2015 |
| 20160377494 | Transmission for Miniature Drive Having a Torque Measuring Element - A transmission ( | 12-29-2016 |
