Entries |
Document | Title | Date |
20080202258 | MEMS SHOCK SENSORS - A shock sensor comprises a substrate and at least one flexure coupled to the substrate and configured to deflect upon an application of force to the shock sensor sufficient to deflect the flexure. Deflection of the at least one flexure produces a detectable change in an electrical property of the shock sensor. Examples of detectable changes in an electrical property of the shock sensor include an open circuit condition, a closed circuit condition, and a variation in voltage of a piezo-electric detector. In some embodiments, the change in the electrical property of the shock sensor may be remotely read by interrogation of a radio frequency identification transponder positioned on the substrate using a remote radio frequency identification transceiver. The disclosure also relates to a shock sensing system and method of shock detection. | 08-28-2008 |
20080229847 | CAPACITIVE SENSOR BASED STRUCTURE AND METHOD WITH TILT COMPENSATION CAPABILITY - A method and system of a capacitive sensor based structure and method with tilt compensation capability is disclosed. In one embodiment, a sensor includes, a series of nested cantilever beams (e.g., may face each other in alternating form such that each subsequent cantilever beam is inside and oppositely facing a respective outer cantilever beam) in an upper surface of a tilt correction assembly, a spacer coupled to a contact zone of a lower surface of the tilt correction assembly, and a first conductive surface and a second conductive surface substantially parallel to the first conductive surface, wherein the spacer to cause at least one of the first conductive surface and the second conductive surface to deflect when a force is applied to a force measuring assembly above the sensor. | 09-25-2008 |
20080245162 | High aluminiferous ferritic stainless steel sheet for weight sensor substrate, method for producing the same, and weight sensor - The present invention provides a stainless steel most suitable as a metal base material for the weight sensor substrate of an automobile airbag, a method for producing said stainless steel and said weight sensor; and the stainless steel sheet comprises a high aluminiferous ferritic stainless steel containing Al of 2.5 to 8 mass % and comprising, in mass,
| 10-09-2008 |
20090049932 | DEVICE FOR DETECTING AMOUNT OF PEDAL OPERATION - In a pedal operation amount detecting apparatus, a brake pedal and a clevis secured at an end portion of an operating rod are pivotably connected by a connecting shaft, a bush is arranged between the brake pedal and the connecting shaft, detectors are attached on an outer circumferential surface of an elastically deformable bush main body of the bush, and an ECU calculates a pedal tread force based on loads detected by the detectors, whereby a simplified structure, an improved mountainability, and a highly accurate detection of an operation amount can be realized. | 02-26-2009 |
20090078059 | Pressure Distribution Detection Device - There is provided such a pressure distribution detection device that noise affect is small even when the detection region is increased and no line break occurs even when the device is used for a long period of time. The pressure distribution device detects distribution of the pressure applied. The device includes a first loop electrode line group ( | 03-26-2009 |
20090205444 | MOUNTED SHOCK SENSOR - This application is directed to a shock sensor mounted in an electronic device. The shock sensor includes both active and passive shock detection methods that allow a technician to determine whether the electronic device was subjected to a shock event that exceeded an impact threshold level. The shock sensor may include shock detection contacts that form an electrical circuit that remains open in the absence of a shock event that exceeds an impact threshold level. In response to a significant shock event, a movable component or substance of the shock sensor may move from a first position to a second position, thereby closing the electrical circuit formed by the shock detection contacts. The change in circuit may be detected and used to provide active indication of whether the electronic device has been subjected to a substantial shock event. In addition, the shock sensor may be observed to passively determine whether the electronic device has been subjected to a substantial shock event. | 08-20-2009 |
20090288501 | SHOCK SENSOR SYSTEM AND METHOD - A surface-mountable shock sensor configuration having substantially eliminated field calibration, comprising: a housing assembly; and a shock sensor replaceably mountable within the housing assembly, wherein the shock sensor configuration yields a repeatable shock response for a plurality of shock sensors, in response to shocks applied to a surface upon which the sensor configuration is mounted | 11-26-2009 |
20090301225 | Apparatus for guiding a strip - The invention relates to an apparatus and a method for guiding a strip, in particular a metal strip. Known apparatuses of this type have a carrier device (110) on which bearing blocks (120) arm fastened. Rollers (130) are rotatably mounted in the bearing blocks in order to guide the strip. So that the roller force acting on the roller in the loading case, i.e. during the guidance of the strip, can be measured in a lasting and reliable manner, it is proposed according to the invention to detect the deformation of the bearing block, in particular in the loading case, by means of a sensor device and ten to calculate the roller force required from the deformation of the bearing block by means of an evaluating device. | 12-10-2009 |
20100011884 | Pressure Sensor - A pressure sensor has a multiplicity of piezoelectric converter elements which are arranged such that they are essentially parallel to a force-applying or pressure-applying direction. These can be in the form of fibres, small rods, plates or the like, and may also be in the form of a thick or thin layer. When the converter elements are in the form of fibres, small rods or plates, they are arranged at a distance from one another by means of an insulating material and/or are at least partially embedded in said material. | 01-21-2010 |
20100024572 | POLYMER NEMS FOR CELL PHYSIOLOGY AND MICROFABRICATED CELL POSITIONING SYSTEM FOR MICRO-BIOCALORIMETER - A microfluidic embedded nanoelectromechanical system (NEMs) force sensor provides an electrical readout. The force sensor contains a deformable member that is integrated with a strain sensor. The strain sensor converts a deformation of the deformable member into an electrical signal. A microfluidic channel encapsulates the force sensor, controls a fluidic environment around the force sensor, and improves the read out. In addition, a microfluidic embedded vacuum insulated biocalorimeter is provided. A calorimeter chamber contains a parylene membrane. Both sides of the chamber are under vacuum during measurement of a sample. A microfluidic cannel (built from parylene) is used to deliver a sample to the chamber. A thermopile, used as a thermometer is located between two layers of parylene. | 02-04-2010 |
20100242629 | ROLL-TO-ROLL COMPATIBLE PRESSURE SENSITIVE EVENT SENSING LABEL - The present invention discloses a smart label to be affixed on or integrated in an object and able to provide an electrical signal indicative of the applied pressure or force and/or the position of the applied pressure or force at a touch point on the object to which the label is affixed. The smart label comprises a layer structure and a detector system, the layer structure comprising of at least a stack of a first, a second and a third layer. The first and third layers comprise a flexible, electrically conductive or semiconductive material and at least two electrodes for connecting the layers to the detector system. The second layer comprises a flexible, deformable and compressible material. The second layer is electrically nonconductive or electrically conductive but less conductive than the first and third layers, wherein the second layer separates the first and third layers. | 09-30-2010 |
20120210802 | FORCE AND NORMALITY SENSING FOR END EFFECTOR CLAMP - A robotic system comprises an end effector including an electromagnetic clamp, a force sensor attached to the end effector for measuring force exerted by the clamp against a work piece surface, and a plurality of normality sensors. The normality sensors are positioned about the force sensor to determine whether the clamp is normal to the surface before the force sensor makes contact with the surface. | 08-23-2012 |
20120234112 | FORCE SENSOR AND METHOD OF MANUFACTURING THE SAME - A sensor substrate includes a plurality of piezoresistance elements. The electrical resistance of each piezoresistance element changes in accordance with an amount of displacement of a displacement portion displaced by an external load applied through a pressure receiving unit. A base substrate supports the sensor substrate. The sensor substrate and the base substrate each include a support supporting the displacement portion such that the displacement portion can be displaced and a plurality of electrically connecting portions electrically connected to the plurality of piezoresistance elements. The supports of the sensor and base substrates are joined to each other and the plurality of electrically connecting portions of the sensor and base substrates are joined to each other. Furthermore, in each of the sensor and base substrates, either the support or the plurality of electrically connecting portions or both extend to the periphery of the sensor substrate or the base substrate. | 09-20-2012 |
20130042702 | FORCE SENSOR AND MEASURING METHOD OF RESISTANCE VARIATION THEREOF - A force sensor and a measuring method of resistance variation thereof are provided. The force sensor includes a first substrate, multiple first electrodes, a second substrate, multiple second electrodes, and a piezoresistive layer. The first electrodes are disposed on the first substrate while the second electrodes facing the first electrodes are disposed on the second substrate. The multiple second electrodes are electrically isolated to each other. Orthogonal projections of the two adjacent second electrodes respectively overlap the corresponding first electrode. The piezoresistive layer is located between the first and the second electrodes and disposed on at least one kind of the first and the second electrodes. | 02-21-2013 |
20130061691 | FORCE SENSOR - A force sensor comprising a substrate, a semiconductor body, and a piezoresistive element provided on a top surface of the semiconductor body. The semiconductor body is connected to the substrate in a force-fit manner, and includes a first wing which is provided on the top surface of the semiconductor body and being connected to the semiconductor body in force-fitting manner. A first force application area is provided on the first wing. A second wing has a second force application area provided opposite the first wing. The piezoresistive element is disposed between the first wing and the second wing. A force distribution component is connected to the first force application area and the second force application area in a force-fit manner. The force distribution component having a first surface which is oriented away from the top surface of the semiconductor body and includes a third force application area. | 03-14-2013 |
20130091962 | SUPPORT UNIT - In order to improve a support unit for motor vehicles comprising a supporting structure mounted on a rear end portion of the motor vehicle a sensor unit is provided for detecting forces acting on the supporting structure and elastically deforming the same. The sensor unit is provided with a sensor base, comprising two fixation regions which are spaced apart and can be fixed to mounting regions of an elastically deformable supporting structure portion. A transformation region disposed between the fixation regions mechanically converts the movements of the mounting regions, and thus also of the fixation regions relative to one another. Movements are generated by the elastic deformation of the supporting structure portion, into a movement of measuring points of the transformation region relative to one another. The movement of the measuring points can be detected by the sensor unit. | 04-18-2013 |
20130220033 | CONTACT DETECTOR WITH PIEZOELECTRIC SENSOR - Disclosed is an apparatus and methodology for detecting contact within a monitored area. A piezoelectric sensor is attached to one end of a detector which is positioned for contact by passing items or individuals. The detector may correspond to a plurality of parallel, rubber calendared cables or a strip of polycarbonate resin. Body deformations induced into the detector upon contact travel to the piezoelectric sensor and are detected as strain coupled to the piezoelectric sensor. The apparatus and methodology may be employed to detect vehicular traffic along travel paths, human contact with walls or floors, manufactured product contact with delivery systems or any other physical contact by animate or inanimate objects or individuals. | 08-29-2013 |
20130255402 | EXTERNAL FORCE DETECTION SENSOR AND EXTERNAL FORCE DETECTION EQUIPMENT - An external force detection sensor includes a piezoelectric piece, excitation electrodes, an oscillation circuit, a movable electrode, and a fixed electrode. The fixed electrode forms variable capacitance with variation in capacitance between the fixed electrode and the movable electrode that is caused by deflection of the piezoelectric piece. The piezoelectric piece, the excitation electrode, the movable electrode, and the fixed electrode constitute combinations of a first combination and a second combination. The first combination constitutes a first sensor unit by disposing a first piezoelectric piece on a first crystal plane of the crystalline body. The second combination constitutes a second sensor unit by disposing a second piezoelectric piece on a second crystal plane. The second crystal plane does not opposite to the first crystal plane of the crystalline body. A relative position of the second crystal plane with respect to the first crystal plane is obtained. | 10-03-2013 |
20130269450 | Method And Apparatus For Load And Additional Property Measurement - A system and method for measuring load and an additional property using a sensor gasket embedded between two components. The sensor gasket may include a sensor layer and a conductive layer. A gap between the sensor layer and conductive layer may be filled with a load sensitive material. The thickness of the load sensitive material varies with the load applied to the two components between which the sensor gasket sits. The sensor operates in a first mode to obtain a sensor measurement that depends on the distance between the sensor layer and conductive layer. The sensor measurement then used to estimate the applied load. The sensor operates in a second mode to estimate a property of one or both of the components. The property of interest may be cracking, material loss due to corrosion, temperature, or another property of the component. | 10-17-2013 |
20130319138 | MICROELECTROMECHANICAL SENSOR FOR MEASURING A FORCE, AND CORRESPONDING METHOD - A microelectromechanical sensor is configured to measure a force, a pressure, or the like. The sensor includes a substrate and a measuring element. The measuring element includes at least two electrically conductive regions, and at least one of the electrically conductive regions is at least partly connected to the substrate. The sensor also includes at least one changing region, and the changing region lies at least partly between the electrically conductive regions. The changing region is configured in a substantially electrically insulating manner in an unloaded state and in a substantially electrically conductive manner in a loaded state. | 12-05-2013 |
20140020484 | Input Device Sensor Configuration - Input device configurations are described. In one or more implementations, an input device includes a sensor substrate having one or more conductors and a flexible contact layer spaced apart from the sensor substrate. The flexible contact layer is configured to flex to contact the sensor substrate to initiate an input of a computing device. The flexible contact layer includes a force concentrator pad that is configured to cause pressure to be channeled through the force concentrator pad to cause the flexible contact layer to contact the sensor substrate to initiate the input. | 01-23-2014 |
20140041461 | FORCE SENSOR - Provided is a force sensor which can reduce a detection error caused by mutual interference between axes and detect a target force and moment with high accuracy. A force sensor includes a pedestal member, an action member arranged so as to face the pedestal member which is displaced by an exerted external force, and a displacement detecting unit which detects a displacement of the action member. The force sensor includes a rigid member arranged so as to face the pedestal member. The force sensor includes columnar elastic members extending in a perpendicular direction to the pedestal member, arranged about an axis at equal intervals, and connecting the pedestal member and rigid member. The force sensor includes elastic units arranged about the axis at equal intervals and connecting the action member and rigid member. The elastic units each include a pair of beam-shaped elastic members extending in a horizontal direction. | 02-13-2014 |
20140090488 | Flexible Piezocapacitive And Piezoresistive Force And Pressure Sensors - Flexible force/pressure sensors for producing electrical output signals proportional to forces or pressures exerted on the sensor include a thin, elastically deformable foam pad laminated between a pair of electrically conducive fabric sheets. A piezocapacitive embodiment of the sensor utilizes an elastically deformable perforated open-cell polyurethane foam pad preferably saturated with glycerin to increase the capacitance of the sensor. The piezocapacitive sensor section is preferably stacked onto a piezoresistive section having a second open-cell foam pad containing piezoresistive carbon particles to form a hybrid piezocapacitive/piezoresistive sensor. A third, “leaky dielectric” embodiment of a sensor includes a single open-cell foam pad which contains both a dielectric liquid and conductive particles. A low frequency such as d.c. to a few hertz is applied to a sensor to determine piezoresistive response of the sensor to forces or pressures and a higher frequency such as 30 KHz is applied to determine piezocapactive response. | 04-03-2014 |
20140150571 | PRESSURE SENSOR, METHOD FOR MANUFACTURE THEREOF, AND PRESSURE DETECTION MODULE - A pressure sensor comprising: a base film on which a conductor pattern having one or more electrodes is formed; a cover film laminated on the base film so as to cover the electrodes of the conductor pattern; and a spacer disposed between the cover film and the base film so as to form a hollow portion having a predetermined gap between the electrode and the cover film; wherein a portion corresponding to the hollow portion of the cover film is constructed such that it has a pressure sensing part which is able to deform in a direction to move toward and away from the electrode in accordance with pressure, and of which contact resistance changes in accordance with a contact pressure thereof with the electrode, so that the pressure sensing part detects the pressure by a change of the contact resistance. | 06-05-2014 |
20140230573 | DISPLACEMENT DETECTION DEVICE AND DISPLACEMENT DETECTION METHOD - A displacement detection device includes a piezoelectric sensor. The piezoelectric sensor is provided with a piezoelectric sheet on both principal surfaces of which detection electrodes are formed. When stress is applied to the piezoelectric sensor, charge is generated, and an output voltage in accordance with this generated charge is detected in a DC voltage detector. A controller measures this output voltage at a predetermined time interval. Every time the controller measures the output voltage, the controller makes a short-circuit control of a switch, and causes the charge generated in the piezoelectric sensor to be released. The controller can thereby detect an amount of change in output voltage generated at the predetermined time interval in accordance with an amount of displacement of the piezoelectric sensor. By sequentially integrating this, the controller can accurately detect the amount of displacement of the piezoelectric sensor which changes across measurement timings. | 08-21-2014 |
20140230574 | IMPACT-RESISTANT SURFACE-MOUNTED ROOF SENSORS - Various systems and techniques may be used to enhance the sensing loads on a roof surface. In some implementations, an impact-resistant surface-mounted roof sensor system may include a sensor, a protective cover, and a load transfer mechanism. The sensor may be adapted to sense a load incident thereon, and the protective cover may be configured to span at least the width of the sensor and adapted to withstand impacts from dense media and an direct incident load. The load transfer mechanism may be adapted to mechanically transfer a load applied on the protective cover to the sensor. | 08-21-2014 |
20140260689 | System and Method for Analyzing Athletic Activity - Various sensor systems are described herein, including inserts having sensors thereon, which are configured to be received in an article of footwear. The inserts may be connected to a sole member of the footwear, or may function as a sole member. The sensors may be piezoelectric sensors in some configurations. The system may also include an electronic module that is overmolded into the sole structure and includes a connector for external access. | 09-18-2014 |
20140331791 | DISPLACEMENT SENSOR - There is provided a displacement sensor which can precisely detect the amount of displacement given by an operator. A touch sensor which is a type of the displacement sensor has a piezoelectric element, a voltage converting unit and a detecting unit. The piezoelectric element instantaneously generates a voltage proportional to a pressing force (the amount of pressing). The voltage converting unit converts the voltage generated by the piezoelectric element, into a voltage proportional to a transition determined based on a predetermined time constant determined by an impedance of a resistor of the voltage converting unit and capacitances of a capacitor and the piezoelectric element, and a pressing force. The detecting unit integrates output voltages of the voltage converting unit, and calculates the pressing force (the amount of pressing) based on an integration value. | 11-13-2014 |
20140366650 | Pressure Mapping and Orientation Sensing System - This disclosure if directed to an improved pressure, force, and orientation sensing system, which may be applied to various industrial articles or sports equipment, fore remote performance analysis and user interface. Where applied to sports equipment, including a golf club, the sensor array of flexible and resilient piezo-resistive material permits collection of grip force data for an array of positions around and along the golf club grip handle; for the analysis, processing and communication of the data once collected, and a method of providing automated golf instruction using a force sensing golf grip of the present invention. Where applied to improved manufacturing lines and shipping of containers, force sensing packages may be equipped with the sensor arrays disclosed herein. The force sensing package is of similar shape to a standard sized package the ordinary forces on which are being tested and by the sampled force sensing package. Control and display software collects the force sensing data, and possibly other data (including motion and orientation data), and communicates it to analytics and display software remote from the device. The force sensing package is comprised of layers, at least two of the layers of which is a force sensing material and a related electrode array. Shapes disclosed are cylinders (cans), cylinders with conic portions (bottle), and parallelepipeds (boxes). | 12-18-2014 |
20150128727 | SURFACE-MOUNTED COLLISION SENSOR, AND METHOD FOR COLLISION DETECTION - An apparatus assembly of a medical apparatus is equipped for collision detection by attaching a polyvinylidene fluoride (PVDF) cover assembly to at least one rigid surface of the apparatus assembly, with a resilient material between the PVDF cover assembly and the rigid surface. The PVDF assembly is composed of a PVDF foil with electrically conductive layers on opposite sides thereof. A protective layer covers the PVDF cover assembly. Electrical leads are connected to the conductive layers, and the piezoelectric property of the PVDF foil produces a voltage across the leads when a force associated with a collision acts on the PVDF foil. A detection circuit detects this voltage and initiates an appropriate response to the collision. | 05-14-2015 |
20150338291 | A SENSOR AND A METHOD OF MAKING THE SAME - The present invention provides a sensor having an improved sensitivity and precision, which is lighter and more flexible than conventional sensors, and a method of making the sensor. The present invention relates to a sensor comprising a resin foam containing a magnetic filler, and a magnetic sensor that detects a magnetic change caused by a deformation of the resin foam, wherein the resin foam is a polyurethane resin foam that comprises a polyisocyanate component, an active hydrogen component, a catalyst and a foam stabilizer, and wherein the resin foam has a hardness change (H | 11-26-2015 |
20160018276 | PRESSING FORCE SENSOR - A pressing force sensor that includes a sensor element configured with a piezoelectric film, a lead terminal for connection to an external circuit, a wiring conductor which connects pressing force detection electrodes and the lead terminal, and a flexible printed circuit board which withstands solder reflow temperatures. The flexible printed circuit board has the pressing force detection electrodes formed on a first principal surface thereof, and is folded via a folding line while the first principal surface faces inward. The sensor element is deflected by a pressing force applied to a second principal surface which faces outward and is in a first area of the flexible printed circuit board which is on one side with respect to the folding line, and a signal corresponding to the pressing force is thus taken out from the pressing force detection electrodes. | 01-21-2016 |
20160027993 | LEAD TITANATE COATING AND PREPARING METHOD THEREOF - The invention provides a lead titanate coating and a preparing method thereof. According to the method, mixed powder is sprayed on the surface of a matrix, and through polarization, the lead titanate coating is acquired. The mixed powder comprises PbTiO | 01-28-2016 |
20160061669 | Monitoring System for Motor Vehicles - A monitoring system for motor vehicles has a number of sensors, which are arranged on control and/or actuation devices of the motor vehicle, which have a core and an outer envelope covering the same to some extent. The sensors are embedded between the core and the outer envelope thereof and deliver an output signal when a force is exerted onto the outer envelope. The sensors are formed by a sensor unit, which can be stretched or clamped onto the core, with a first foil with a first conducting trace pattern and with a second foil, arranged thereabove, with a second conducting trace pattern. The conducting trace patterns are arranged on mutually facing surfaces of the two foils and the mutually facing surfaces of the foil are connected to one another via spacer elements in such a manner that the foils are elastically biased away from one another and a contact between the first and second conducting trace patterns can be produced by exerting a force onto at least one of the foils. | 03-03-2016 |
20160153828 | FORCE SENSOR DEVICE FOR DETECTING THE WEIGHT OF A VEHICLE | 06-02-2016 |
20160161284 | MICROFORCE MEASURING DEVICE - A microforce measuring device includes a base; a fixing component disposed at the base; a cantilever fixed at one end by the fixing component; a magnetic component disposed at the cantilever; a Hall effect sensing unit disposed at the base, aimed at the magnetic component, and spaced apart from the magnetic component by a distance to sense a change in a magnetic field of the magnetic component and generate a sensing signal; and a signal processing unit electrically connected to the Hall effect sensing unit to receive and analyze the sensing signal. Parts and components of the microforce measuring device are commercially available and cheap, so that the microforce measuring device incurs low manufacturing costs and measures a variation in a force of less than 5 gf precisely. | 06-09-2016 |