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| Number | Title | Issue Date |
| 8024957 | Downhole load cell A downhole load cell calibrated for enhanced accuracy. The load cell may be a dry load cell calibrated by storage of pre-determined temperature and pressure data relative to the load cell based on known loads applied thereto. Thus, surface equipment employed with th... | 09/27/2011 |
| 7654126 | Method for establishing a correlation between a first state of a piezoelectric component and a second state of the component and use of said correlation A method for producing a correlation between a first state of a piezoelectric component (1, 20) comprising a piezoceramic element and a second state of the component comprises the following steps: a) a first group of components respectively in the first state... | 02/02/2010 |
| 7451632 | Gauge restraint load calibration system A direct measuring loaded gage axle assembly that measures track strength by directly measuring constant load on split axles as vertical loads are imposed by a hydraulic ram, and horizontal loads being supplied by horizontal rams through split axles and steel wheels... | 11/18/2008 |
| 7440861 | Concept of compensating for piezo influences on integrated circuitry The inventive circuitry on a semiconductor chip includes a first functional element having a first electronic functional-element parameter that exhibits a dependence relating to the mechanical stress present in the semiconductor circuit chip in accordance with a fir... | 10/21/2008 |
| 7437260 | Concept of compensating for piezo influences on integrated circuitry A semiconductor chip includes a first functional element having a first electronic functional-element parameter exhibiting a dependence relating to the mechanical stress present in the semiconductor circuit chip, and being configured to provide a first output signal... | 10/14/2008 |
| 7383717 | Force sensor abnormality detection system for legged mobile robot In a force sensor abnormality detection system for a legged mobile robot having a force sensor installed between a foot and each leg and producing an output indicative of floor reaction force acting from a floor on which the foot contacts, the robot is controlled to... | 06/10/2008 |
| 7370574 | Device for determining and maintaining mold gyration angle in a gyratory compactor A gyratory compactor apparatus is provided for interacting with a sample within a generally cylindrical mold having a flange. Such an apparatus comprises a frame defining an axis and an offsetable member engaged with the frame for engaging one end of the mold. The o... | 05/13/2008 |
| 7357419 | Fastening for a safety belt buckle, which is equipped for measuring the belt force arrangement A fastening arrangement for a safety belt is provided and includes a holder for securement to a vehicle. The holder has a T-shaped head with laterally extending arms. A connector is moveably disposed, against spring action on the holder and is connected to a belt bu... | 04/15/2008 |
| 7347452 | Tension sensing assembly A tension sensing assembly for a seat restraint system in a vehicle is provided. The tension sensing assembly comprises an anchor, a movable mechanism configured to be secured to a portion of a buckle, at least one magnet coupled to the movable mechanism, a Hall eff... | 03/25/2008 |
| 7342185 | Compression column load cell with compensation for off center loading errors Simple and inexpensive electrical compensation for off-axis and off-center loading sensitivity is possible in compression column load cells having a pair of compensation strain gages in series with each of the main strain gages in the load cell. The compensation gag... | 03/11/2008 |
| 7324864 | Apparatus and method for measuring forces imparted on valve assemblies of metered dose delivery containers during manufacture thereof An axial force measurement apparatus (40) comprises a head member (42) adapted for receiving force imparted by an external force-applying source, and a transducer (44) such as a load cell for measuring the amount of force applied to the head mem... | 01/29/2008 |
| 7256891 | Sensor alignment apparatus for an analysis system An apparatus for analyzing a population of particles is set forth. The apparatus includes an emitter adapted to generate a beam of electromagnetic radiation, such as from a laser, and a particle chamber disposed in a path of the electromagnetic radiation beam. The a... | 08/14/2007 |
| 7240711 | Apparatus and method for alignment of a bonding tool The invention provides an apparatus and method for aligning a bonding tool. A force sensor having a plurality of force sensing sections is configured to measure a force generated by the bonding tool on the force sensor. Each sensing section is adapted to individuall... | 07/10/2007 |
| 7236252 | System and apparatus for measuring displacements in electro-active materials A device designed to apply uniaxial pressure to the surface of an electro-active material while simultaneously applying a current to the material under controlled temperature conditions and then measuring the displacement of the material by means of a laser interfer... | 06/26/2007 |
| 7209240 | System and apparatus for measuring displacements in electro-active materials A specialized containment cell with optically transparent apertures, in conjunction with a laser interferometer system provides the means for non-contact displacement measurements of electro-active (piezoelectric and electrostrictive) materials to be performed under... | 04/24/2007 |
| 7203344 | Biometric imaging system and method A method and system of obtaining a ten-print plain impression fingerprint includes scanning a print image, processing the scanned image, separating the processed image into individual fingerprint images, and determining how many print images have been scanned. The m... | 04/10/2007 |
| 7193162 | Method for assessing the operation of a conveying apparatus The present invention is directed to an apparatus and method for measuring the weight of material such as rock, earth, wood, pulp, grain, gravel, sand, ore, cement etc. being processed or moved by an apparatus such as a conveyor, apron conveyor or bucket elevator dr... | 03/20/2007 |
| 7159440 | Tool evaluation calibrator and method To calibrate a tool evaluator having a first sensor, where this first sensor is operable to sense a force and transmit a first signal associated with the sensed force, a second sensor is disposed within the tool evaluator. This second sensor is operable to sense the... | 01/09/2007 |
| 7104139 | System and method for load sensing using piezoelectric effect System and method for measuring static load by using a piezoelectric load sensor with a feedback technique to compensate for the signal loss due to charge leakage, and therefore ensures measurement accuracy. The system is integrated with other structure, objects and... | 09/12/2006 |
| 7098844 | Acceleration detector with integral vehicle parameter display using a vehicle interface Calibration of an acceleration detector is initiated by a user depressable button such as a button indicating a vehicle is at rest and/or by the detector reading an OBDII vehicle communication protocol to determine the condition of the vehicle. Calibration permits m... | 08/29/2006 |
| 7089775 | Device and method for calibrating a sensor A device and a method for calibrating a sensor, e.g., a force sensor such as a belt-force sensor, which allow reliable calibration of the sensor in a simple manner to counteract age-related distortion of measured values. The device for calibrating a sensor includes ... | 08/15/2006 |
| 7091428 | Weighing apparatus with Roberval mechanism A weighing apparatus for measuring a weight of an article including a Roberval mechanisms; a first load converting unit including a load receiving portion operationally coupled with a load receiving portion of the Roberval mechanism and a plurality of levers connect... | 08/15/2006 |
| 7086270 | Method for continuous sensor self-test A method and device for self-test of a sensor. The method includes stimulating the sensor with signals that generate sensor outputs at a frequency that differs from the frequency of expected sensed parameter signals. The sensor output is filtered to remove the effec... | 08/08/2006 |
| 7076990 | Load cell type weight measuring device A load cell type weight measuring device includes a load cell formed of a strain member provided with a plurality of strain gauges and deforming according to a load applied to a load receptacle. The load cell type weight measuring device converts an output of a Whea... | 07/18/2006 |
| 7073393 | Magnetic flowmeter with built-in simulator A magnetic flowmeter transmitter includes a differential amplifier that senses an additive combination of actual flowmeter electrode outputs and simulated electrode outputs. The differential amplifier provides an additive amplifier output. A simulator provides the s... | 07/11/2006 |
| 7055365 | Load sensor and seat weight measuring apparatus with a plurality of strain gauges A load sensor hardly causing error in weight measurement even when the environmental temperature of the load sensor varies, and a seat weight measuring apparatus using the load sensor. The sensor includes a plurality of strain gauges form a bridge circuit. The strai... | 06/06/2006 |
| 7042228 | Transducer in-situ testing apparatus and method The present invention is directed to an apparatus and method for a measurement system for the testing of transducers, and more particularly to the testing of piezoelectric transducers. The measurement system includes a transducer, a feedback amplifier coupled to the... | 05/09/2006 |
| 7040955 | Chemical-mechanical planarization tool force calibration method and system The methods and devices described below allow users of CMP tools to quickly calibrate Spindle Force, Wafer Force, and Retaining Ring Force using mechanisms, load cells, a control computer, and force equations. The control computer can test a variety of pressures in ... | 05/09/2006 |
| 7022949 | Electric cooking range having multiple-zone power control system and wipe resistant control panel A multiple-zone power control system for controlling electric heating elements, including a power control unit having multiple control zones, a touch-sensitive function key, and a touch-sensitive on/off key for activating and deactivating one of the control zones. W... | 04/04/2006 |
| 6997060 | Load-detecting device A load-detecting device includes a supporting member, a load transfer member, a load sensor, and a load sensor supporting member. The load transfer member is supported by the supporting member and includes an elastic displacement area in which an elastic displacemen... | 02/14/2006 |
| 6998851 | Apparatus and method for determining the performance of micromachined or microelectromechanical devices (MEMS) An apparatus for determining the performances of at least one micromachined or microelectromechanical device (MEMS device) intended to carry a high frequency signal having an intended working frequency is disclosed. The MEMS device comprises a capacitive structure w... | 02/14/2006 |
| 6993954 | Sensor equilibration and calibration system and method A system and method for equilibrating and calibrating a pressure or force sensor is provided. The system includes a flexible bag arranged to receive the sensor, and a vacuum source, connectable with the flexible bag, adapted to reduce the pressure within the flexibl... | 02/07/2006 |
| 6971273 | Tool evaluation system and method A tool is evaluated in response to a member of the tool being moved from a first position to a second position. In this evaluation, a first force is applied to the member. The first force is operable to move the member from the first position to the second position.... | 12/06/2005 |
| 6948387 | Clamp calibration apparatus and method The invention provides an apparatus and method to calibrate a clamp, such as a wire clamp, which is suitable for use with a wire-bonding machine for semiconductor devices. A contact means is arranged to be contacted by an arm of the clamping device and a sensing mec... | 09/27/2005 |
| 6906700 | 3D controller with vibration A hand operated controller or converter structured for allowing hand inputs to be converted or translated into electrical outputs, the controller structured with a plate or platform moveable relative to a base or housing about two mutually perpendicular axes general... | 06/14/2005 |
| 6903561 | Circuitry for measuring mechanical stress impressed on a printed circuit board A circuit for measuring mechanical stress impressed on a printed circuit board includes a number of electrically conductive pads formed on at least one outer surface of the printed circuit board, and a resistive material applied in a pattern to the printed circuit b... | 06/07/2005 |
| 6892563 | Calibration apparatus and method for roll covers with embedded sensors An apparatus for facilitating calibration of sensors embedded within an object includes: a foundation; a force generator mounted on the foundation configured to generate a force in a first direction; a load cell connected with the force generator that detects the ma... | 05/17/2005 |
| 6888074 | Compression column load cell Simple and inexpensive electrical compensation for off-axis and off-center loading sensitivity is possible in compression column load cells comprising a pair of compensation strain gages in series with each of the main strain gages in the load cell. The compensation... | 05/03/2005 |
| 6868710 | Pinch grip dynamometer field testing calibration stand A pinch grip dynamometer field testing calibration stand for a pinch or finger grip dynamometer having a base defined by a platform and a vertical post, a dynamometer holder attached to the platform, and upper and lower calibration plates slidable on the post. The d... | 03/22/2005 |
| 6820458 | Seat belt force sensor A force-sensing mechanism (20) comprising: a housing having first (22) and second (24) housing members; a slidable plate positioned between plate portions of the first and second housing members and moveable thereto; various spacers located betw... | 11/23/2004 |
