Class / Patent application number | Description | Number of patent applications / Date published |
073862042 | Along or about mutually orthogonal axes | 32 |
20080276726 | Device for Measuring Force by Resistive Detection with Double Wheastone Bridge - A device for measuring force by resistive detection includes a double Wheatstone bridge having at least eight resistive gauges arranged on a membrane where each of the Wheastone bridges are respectively arranged on disjointed portions of the membrane, and two resistive gauges of at least one Wheatstone bridge are reside on a non-deformable area of the membrane. | 11-13-2008 |
20110041624 | WIND TURBINE GEARBOX TESTING SYSTEM - A wind turbine gearbox test cell includes a cradle and a base mounted to a first support structure. Load devices are interconnected between the cradle and base and are configured to input at least one of thrust, radial and yaw loads to the gearbox through the cradle to a wind turbine gearbox under test. A controller is in communication with the load devices and is programmed to command the load devices to input the at least one of thrust, radial and yaw loads to the gearbox corresponding to a simulated wind turbine gearbox loading event. The test cell includes dynamometers and gearboxes that can be reconfigured based upon the particular wind turbine gearbox under test. | 02-24-2011 |
20120198945 | DETECTION DEVICE, ELECTRONIC APPARATUS, AND ROBOT - A detection device includes a first substrate having a plurality of force sensors disposed around respective reference points, and a second substrate on which is formed elastic protrusions whose centers of gravity are positioned in positions that overlap with respective reference points and that elastically deform due to the force in a state in which the tips of the elastic protrusions make contact with the first substrate. The second substrate is an elastic material having a predetermined elasticity. | 08-09-2012 |
20140000385 | FORCE SENSOR | 01-02-2014 |
20140013862 | Wearable Ground Reaction Force Foot Sensor - Disclosed are several examples of a ground reaction force sensor for an article having an upper force plate for contacting the article, a lower force plate for contacting the ground, a vertical load cell disposed between the plates for measuring the force acting on the cell in a direction that is substantially perpendicular to the surface, a horizontal load cell disposed between the plates for measuring the force acting on the cell in a direction that is substantially parallel to the surface, and with the load cells being mounted between the plates in a configuration that is substantially insensitive to off-axis forces imposed on them for improved load cell measurement accuracies. Various other features and benefits are provided. | 01-16-2014 |
20140096621 | FORCE AND TORQUE SENSORS - Force and torque sensors ( | 04-10-2014 |
20140331787 | SIX-AXIS FORCE-TORQUE SENSOR - A sensing device for measuring force and/or torque includes a top part with a top electrode structure, a bottom part with a bottom electrode structure, and a support structure. The support structure includes spring elements for supporting the top part on the bottom part with the top electrode structure parallel to and facing the bottom electrode structure. The spring elements provide a gap between the top and bottom electrode structures and allow displacement of the top part relative to the bottom part in three orthogonal directions two parallel and one perpendicular to the bottom plate, and for rotation of the top part relative to the bottom part around three orthogonal axes, corresponding with the two parallel and one perpendicular directions. The displacement and/or rotation induce a change in distance between and/or overlap area of the top and bottom electrodes and a corresponding change of capacitance. | 11-13-2014 |
20160109311 | FORCE DETECTION APPARATUS AND ROBOT - A force detection apparatus includes a first member, a second member, and a third member, the second member and the first member sandwich a plurality of piezoelectric elements (in a narrow sense, a first piezoelectric element and a second piezoelectric element), and the third member and the first member sandwich a plurality of piezoelectric elements (in a narrow sense, a third piezoelectric element and a fourth piezoelectric element) different from the plurality of piezoelectric elements sandwiched by the second member and the first member. | 04-21-2016 |
073862043 | Three dimensional (e.g., x, y, z axes) | 24 |
20080264183 | Full-Axis Sensor for Detecting Input Force and Torque | 10-30-2008 |
20090038413 | Force/moment sensor for measuring at least three orthogonal loads - In a force/moment sensor for measuring at least three orthogonal loads, there are provided rod-shaped elements formed as glass fibers which have no support structure and are fixed in platforms. In one embodiment, the rod-shaped portions can form one continuous glass fiber or a small number of glass fibers, with the one or plurality of fibers being wound in an undulating configuration around a virtual cylinder. The glass fibers can be provided with a coating. | 02-12-2009 |
20090320610 | FORCE SENSOR - A force sensor | 12-31-2009 |
20110005338 | FORCE DETECTION DEVICE - Between an upper substrate | 01-13-2011 |
20120118080 | DEVICE FOR THE TOUCH-SENSITIVE CHARACTERIZATION OF A SURFACE TEXTURE | 05-17-2012 |
20130152700 | SENSOR DEVICE, SENSOR MODULE, ROBOT AND METHOD OF MANUFACTURING SENSOR DEVICE - A sensor device includes a package, a sensor element that is disposed in the package, and a lid that seals the package, in which the sensor element includes a contacting surface that comes in contact with the lid, the package includes a joint surface which is joined to the lid, and the contacting surface and the joint surface are not on the same flat surface. | 06-20-2013 |
20130319135 | FORCE SENSOR - With the Z-axis given as a central axis, on an XY-plane, arranged are a rigid force receiving ring, a flexible detection ring inside thereof, and a cylindrical fixed assistant body further inside thereof. Two fixing points on the detection ring are fixed to a supporting substrate, and two exertion points are connected to the force receiving ring via connection members. When force and moment are exerted on the force receiving ring, with the supporting substrate fixed, the detection ring undergoes elastic deformation. Capacitance elements or others are used to measure distances between measurement points and the fixed assistant body and distances between the measurement points and the supporting substrate. Elastic deformation of the detection ring is recognized for mode and magnitude, thereby detecting a direction and magnitude of force or moment which is exerted. | 12-05-2013 |
20150107374 | ELECTRONIC DEVICE AND QUAD-AXIAL FORCE AND TORQUE MEASUREMENT SENSOR THEREOF - A quad-axial force and torque measurement sensor is disclosed in the invention. The quad-axial force and torque measurement sensor includes a sensor main body which includes a polyvinylidene layer, a first circuit layer, and a second circuit layer. The polyvinylidene layer is located between the first circuit layer and the second circuit layer. The polyvinylidene layer includes a first polyvinylidene layer surface, a second polyvinylidene layer surface, a plurality of first electrodes, a plurality of second electrodes and a plurality of third electrodes. The first electrodes are located on the first polyvinylidene layer surface. The second electrodes and third electrodes are located on the second polyvinylidene layer surface, and the third electrodes are located around each of the second electrodes. | 04-23-2015 |
20160091376 | DISPLACEMENT DETECTION TYPE SIX-AXIS FORCE SENSOR - A six-axis force sensor including a fixed part; a first movable part; a first connecting part connecting the first movable part to the fixed part in an elastically displaceable manner; a second movable part; a second connecting part connecting the second movable part to the first movable part in an elastically displaceable manner; a first detecting section detecting a displacement of the first movable part relative to the fixed part; and a second detecting section detecting a displacement of the second movable part relative to the first movable part. The six-axis force sensor enables, in a three-axis rectangular coordinate system, a detection of force components in first axis, second axis and third axis directions, and moment components about the first axis, the second axis and the third axis, of a force applied to the second movable part, with reference to detection values of the first and second detecting sections. | 03-31-2016 |
20160123822 | Sensor Assembly And Method For Measuring Forces And Torques - A sensor assembly comprises a base plate and a sensor member displaceable relative to the base plate. A spring arrangement operates in first and second stages in response to displacement of the sensor member relative to the base plate. Different resolutions of force and torque measurements are associated with the first and second stages. A light sensitive transducer senses displacement of the sensor member relative to the base plate and generates corresponding output signals. A collimator directs a plurality of light beams onto the light sensitive transducer so that the light beams strike different pixels of the light sensitive transducer to sense displacement of the sensor member relative to the base plate. | 05-05-2016 |
073862044 | Using a resistance strain gage | 14 |
20080257068 | Wheel, test stand and method for determining aerodynamic characteristics of a test vehicle - A wheel is provided for a test vehicle. The wheel has a rim and a hub, and whereby at least one force sensor is placed in the flux of force between the hub and the rim. A test stand is provided with the test vehicle that has multiple vehicle wheels and one or more of these vehicle wheels is embodied as a wheel with a force sensor placed between the hub and the rim. An appropriate procedure is provided for determining the aerodynamic characteristics of the test vehicle. Especially with a test stand equipped with a wide belt, the forces relevant to measurement of the drag coefficients can be reliably measured with the aid of the specific wheel with the force sensor. Use of overhead scales that have an undesired effect on the flow can be dispensed with. | 10-23-2008 |
20080295610 | Triaxial force sensor and triaxial force detection method - The detection unit Ud is configured by arranging two strain sensitive elements X | 12-04-2008 |
20090301222 | SENSOR-EQUIPPED BEARING FOR WHEEL - There is provided a sensor equipped wheel support bearing assembly with rolling elements interposed between outer and inner members and with a strain sensor fixed to a stationary member served by one of the outer and inner members. The strain sensor includes a strain generating member and a sensor element secured thereto. The strain generating member has first and second contact fixing segments respectively associated with a flanged face provided in the outer member and a peripheral surface of the stationary member. These contact fixing segments have a joint region therebetween having a bent portion convexed toward the outer member. A location in the strain generating member where the sensor element is secured is on the first contact fixing segment side of the bent portion and yet in the vicinity of the bent portion. | 12-10-2009 |
20100005907 | TORQUE MEASURING APPARATUS AND ACTUATOR DRIVE CONTROL SYSTEM - A torque measuring apparatus includes: a flexure element that is attached between an output shaft of an actuator or a speed reducer as a torque measurement object and a load object, and includes a main flexure part displaced mainly around the output shaft according to a torque applied from the load object, and an auxiliary flexure part to remove a displacement component other than the displacement of the main flexure part around the output shaft; and at least one pair of strain gauges attached to the main flexure part. The torque is measured based on electric signals outputted from the respective strain gauges. | 01-14-2010 |
20100175486 | FLEXIBLE FORCE SENSOR WITH COUPLING TYPE AND MULTI-DIRECTIONAL RECOGNITIONS - A force sensor includes a substrate, a support layer, a film, a plurality of sensing portions, a plurality of electrodes, a plurality of sensing materials, and a filler. The support layer is disposed on the substrate. The film is supported by the support layer. The sensing portions extend from the film. The electrodes are correspondingly disposed on the sensing portions. The sensing materials are correspondingly disposed on the electrodes. The support layer, the film, the sensing portions, the electrodes, and the sensing materials encapsulated by the filler. | 07-15-2010 |
20100199783 | MULTI-AXIS FORCE SENSOR AND ACCELERATION SENSOR - There is provided a multi-axis force sensor including first and second bridge circuit groups detecting resistances of respective first and second groups of strain resistance elements provided at respective strain producing portions. The strain producing portions are formed on two axes intersecting with respect to each other at a right angle. The first group of strain resistance elements are arranged on one axis across an action portion so as to face with respect to each other, and the second group of strain resistance elements are arranged on another axis across the action portion so as to face with respect to each other. The first bridge circuit groups respectively output a positive voltage when receiving tensile force, and the second bridge circuit groups respectively output a negative voltage when receiving tensile force. | 08-12-2010 |
20100313677 | Strain Gauge Rosette for Internal Stress Measurement - The invention relates to a strain gage rosette for internal stress measurement on workpieces according to the bore hole method, which comprises at least three measuring grids | 12-16-2010 |
20110239784 | FORCE SENSOR CHIP AND ACCELERATION SENSOR CHIP - A force sensor chip of the present invention is for detecting an external force, and comprises a base member including an action portion where the external force is applied, a support portion that supports the action portion therearound, and a connecting portion that connects the action portion and the support portion together, a plurality of strain detecting resistive elements that are formed at respective deformation producing portions of the base member which deform when the external force is applied, and a thin-film resistor that is formed at upper layers of the strain detecting resistive elements with a resistive-element wiring and an interlayer insulation film intervening between the thin-film resistor and the strain detecting resistive elements. | 10-06-2011 |
20110290037 | CONTACT FORCE SENSOR - A triaxial force sensor including: a deformable membrane; a detector detecting a deformation of the membrane configured to carry out a triaxial detection of the force to be detected; and an adhesion mechanism disposed at least at one of the principal faces of the deformable membrane, configured to secure the one of the principal faces of the deformable membrane to at least one elastomer material to be acted upon by the force to be detected, and distributed uniformly at a whole of the surface of the one of the principal faces of the deformable membrane, the deformable membrane being disposed between a cavity and the elastomer material. | 12-01-2011 |
20120266694 | MULTIAXIAL FORCE-TORQUE SENSORS - The disclosure relates to a multiaxial force-torque sensor having a transducer structure, with strain gauges placed in defined areas to measure the strain, from which the forces and torques are calculated, and where the transducer structure can include (e.g., consist of) two concentric rings connected with spokes. The transducer structure can be a planar mechanical structure, and all strain gauges can be applied to the same surface of the transducer structure to measure non-radial strain components. | 10-25-2012 |
20130112010 | SENSOR ELEMENT, FORCE DETECTING DEVICE, AND ROBOT - A sensor element is formed by, when an α axis, a β axis orthogonal to the α axis, and a γ axis orthogonal to the α axis and the β axis are set, laminating piezoelectric substrates and electrodes in the γ axis direction. The sensor element includes connecting sections arranged such that a part of external sections of the electrodes aligns with a part of external sections of the piezoelectric substrates. The connecting sections are arranged not to align with one another in a direction of the γ axis. Conductors that electrically connect the connecting sections and external connecting sections are formed along outer peripheral sections of the piezoelectric substrates. | 05-09-2013 |
20130152701 | SENSOR DEVICE, SENSOR MODULE, FORCE SENSING APPARATUS, AND ROBOT - A sensor device includes a package, a sensor element that is disposed in the package, and a lid that seals the package. The lid includes a flexible portion that surrounds the vicinity of the sensor element in a plan view. | 06-20-2013 |
20130239700 | PIEZORESISTIVE LOAD SENSOR - A three-axis load sensor utilizing four piezoresistive devices on a flexible silicon membrane is provided. The load sensor further includes a mesa disposed on the membrane substantially equidistant from the piezoresistive devices. A six-axis load cell is provided by placing a plurality of load sensors disposed on a substrate, the substrate configured to attach to an object wherein forces applied to the object can be measured and/or determined. The load sensors can be manufactured using bulk microfabrication techniques on a single crystal silicon wafer, and can detect normal and shear loading applied to the membrane. | 09-19-2013 |
20140230569 | DEVICE AND METHOD FOR MEASURING SECTIONAL FORCES - A device and a method are disclosed for measuring sectional forces on a single-piece structural element in respect of a sectional plane by strain gauges, wherein a first and a second strain gauge of the plurality of strain gauges are arranged on a first outer wall, and a third and a fourth strain gauge are arranged on a second outer wall, with the result that, when the structural element is loaded with a first force, the change in length of the first and third strain gauges is opposite to the change in length of the second and fourth strain gauges, wherein the first outer wall and the second outer wall have, in the region of a cavity, at least three openings, which are separated from each other by webs, and wherein the first, second, third and fourth strain gauges are arranged on the webs. | 08-21-2014 |