Dynamometer Patents (Class 73/1.08)
  • Patent number: 10551225
    Abstract: Described herein is an improved displacement transducer, a closed loop control system incorporating the same, and an improved method of manufacturing of manufacturing a displacement transducer. The improved transducer has several advantages, including improved manufacturability; improved fluid flow within the sensor and reduced cavitation as a result; and the enablement of closed loop control for assisted manual or fully automatic displacement.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: February 4, 2020
    Assignee: Stress Indicators, Inc.
    Inventor: Christopher Bunai
  • Patent number: 9671898
    Abstract: Devices and methods are provided that facilitate improved input device performance. The devices and methods utilize a first substrate with proximity sensor electrodes and at least a first force sensor electrode disposed on the first substrate. A second substrate is physically coupled to the first substrate, where the second substrate comprises a spring feature and an electrode component. The electrode component at least partially overlaps the first force sensor electrode to define a variable capacitance between the first force sensor electrode and the electrode component. The spring feature is configured to facilitate deflection of the electrode component relative to the first force sensor electrode to change the variable capacitance. A measure of the variable capacitance may be calculated and used to determine force information regarding the force biasing the input device.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: June 6, 2017
    Assignee: Synaptics Incorporated
    Inventors: Lin-Hsiang Hsieh, Richard Schediwy
  • Patent number: 9626854
    Abstract: A lifeguard alarm system for swimmers, capable of detecting whether a swimmer is moving forward or drowning. The system includes a detecting device, an accelerometer disposed on the detecting device and a computing unit; the accelerometer configured to output respective acceleration values along X, Y, and Z axes of the detecting device and of gravity, the computing unit configured to calculate a sum of squares of the X, Y and Z acceleration values of the accelerometer as a first value and square of an acceleration of gravity as a second value and to compare the first value with the second value. A relationship between the first value and the second value can be used to control the warming unit.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: April 18, 2017
    Inventor: Bing-Syun Yang
  • Patent number: 9395386
    Abstract: System, apparatus and method for providing corrective sensor outputs, particularly when a sensor is subject to gravitational or acceleration effects. A sensor and accelerometer may be operatively coupled to a processor, wherein the processor receives inputs from both. The processor receives the sensor signals and determines the gravitational or acceleration effects on the sensor from the accelerometer signals. Based on these, the processor determines a correction factor that is applied to the sensor signals to provide improved and more accurate sensor outputs.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 19, 2016
    Assignee: Dwyer Instruments, Inc.
    Inventors: Rodney Corder, Daniel A. Heuer
  • Patent number: 9004862
    Abstract: A control system for calibrating a wind turbine sensor placed on a component of a wind turbine and related methods are disclosed. The wind turbine includes a rotor having at least one wind turbine blade. The method comprises pitching one or more of the at least one of the wind turbine blades according to a predetermined pitch movement which induces a vibratory motion in the at least one turbine blade. A wind turbine sensor measures a vibratory response signal at least partly caused by the vibratory motion. A characteristic sensor response value is determined from the vibratory response signal. The characteristic sensor response value may be compared to a predetermined sensor calibration parameter to determine whether a difference is greater than a predefined tolerance parameter. In this manner, the wind turbine sensor may be calibrated.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 14, 2015
    Assignee: Vestas Wind Systems A/S
    Inventor: Erik Carl Lehnskov Miranda
  • Publication number: 20150096348
    Abstract: A force applicator assembly is disclosed to calibrate an in-situ force transducer (or load cell) in a force (load) applying test machine. The force applicator includes stationary member configured to be secured to fixed structure, a moving member, a load cell operably coupled to an end of the moving member, and a differential screw assembly connecting the moving member to the stationary member. A coupling assembly can be used to assure that only tension or compression loads are applied. The coupling assembly can be configured if desired such that no tension or compression loads can be applied. A method to calibrate an in-situ force transducer in a force applying test machine is also provided and uses a force generator and the coupling assembly.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 9, 2015
    Inventors: Bradley Dean Schulz, Paul M. Krueger
  • Patent number: 8984928
    Abstract: A moment calibrating apparatus (1) is provided with an elongated force transmitting member (6) for transmitting a force applied to the end portion thereof to a multi-component force gauge (5), a load applying mechanism (7) for applying a load without changing the direction of the force along a direction perpendicular to said end portion, and a calculation unit (8) for calculating a true moment free from the effect of a perpendicular load on the basis of the moment value around the axis in the direction orthogonal to the perpendicular direction, measured by the multi-component force gauge (5) under the condition that said perpendicular load along the direction perpendicular to said end portion is applied by the load applying mechanism (7), wherein a moment calibration of the multi-component force gauge (5) is performed using said true moment calculated by the calculation unit (8).
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: March 24, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Yu Sumimoto, Takayuki Fukuda
  • Patent number: 8976043
    Abstract: A system and method for illuminating one or more sidestick controllers within a cockpit of an aircraft is described. In some embodiments, the system includes a sidestick controller having lighting components that display lighting behaviors representing the movement and/or control of an aircraft. In some embodiments, the system illuminates various different lighting components on a sidestick controller based on information received from aircraft control systems, cockpit lighting systems, and other systems associated with an aircraft.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: March 10, 2015
    Assignee: Textron Innovations, Inc.
    Inventor: Robert Edward Voros
  • Publication number: 20140373594
    Abstract: A method for manufacture of a pressure sensing mat comprising the steps of: (a) preparing two conductive layers, each conductive layer comprising an array of conducting strips mounted upon a substrate arranged in a parallel fashion, wherein the conducting strips of the first conductive layer are oriented perpendicularly in relation to the conducting strips of the second conductive layer; (b) for each conductive layer, connecting each of the conducting strips to a communication line; (c) sandwiching a compressible layer between the two conductive layers; and (d) performing a pressure reading standardization test to the mat.
    Type: Application
    Filed: July 11, 2012
    Publication date: December 25, 2014
    Applicant: ENHANCED SURFACE DYNAMICS, INC.
    Inventors: Tal Natan Remez, Amir Ben Shalom, Gusti Yoram Averbuch
  • Publication number: 20140245808
    Abstract: A sensor assembly may include a Wheatstone bridge with one or more sense elements, an amplifier coupled to the Wheatstone bridge for providing a sensor output signal, a resistor, and a switch for connecting the resistor between the sensor and an adjustable power source output to induce an offset in the sensor output signal. In some instances, a controller may perform an automatic shunt calibration procedure by activating the switch to connect the resistor between the sensor and the adjustable power source output to induce an offset in the sensor output signal. The controller may read the output value and compare the output value with a predetermined value. The controller may adjust the power source output to a value that moves the sensor output value toward the predetermined value. The controller may repeat the reading, comparing and adjusting step until the sensor output value is within a predetermined range of the predetermined value.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Applicant: Honeywell International Inc.
    Inventors: Mahendra Kumar Pradhan, Gautham Ramamurthy, Sugheer Beligere, Vishal Malhan
  • Publication number: 20140144205
    Abstract: Device for calibrating and balancing a measuring device of a tablet press, in particular a rotary tablet press, comprising at least one reference measuring device and at least one control device, wherein interfaces of the control device are connected with interfaces of the measuring device and the reference measuring device, wherein the control device is designed to generate a plurality of reference measurement results and to record the associated measurement values of the measuring device and the reference measuring device, wherein the control device further comprises a comparing device, with which the recorded measurement values of the measuring device and the reference measuring device can be compared with each other, and wherein the control device is designed to balance the measuring device if an impermissible deviation is present between the compared measurement values. The invention also relates to a corresponding method.
    Type: Application
    Filed: April 19, 2012
    Publication date: May 29, 2014
    Applicant: FETTE COMPACTING GMBH
    Inventors: Ingo Schmidt, Ulrich Gathmann, Matthias Meier
  • Publication number: 20140124718
    Abstract: A method is provided for compensating measuring errors for handling equipment with a drive carrier that includes a carrier part and driven drums for moving the steel cables arranged thereon and including a handling receptacle in which the handling receptacle is suitable for picking up loads and is connected to the carrier part by deflection pulleys via the support cables a id a controllable lever mechanism that is at least connected to at least two support cables and with at least two force sensors that capture the forces of at least two support cables and a monitoring device that monitors the forces of the at least two force sensors. An adjustment angle of the controllable lever mechanism is captured by sensors and a correction of the cable forces based on the captured adjustment angle is carried in the monitoring device.
    Type: Application
    Filed: December 22, 2013
    Publication date: May 8, 2014
    Applicant: TECSIS GMBH
    Inventors: Hartmut Fürniss, Drazen Rot
  • Publication number: 20140083158
    Abstract: A built-in self-test structure for a pressure tester and a method thereof are provided. The built-in self-test structure includes a substrate, a plurality of membrane layers, a fixing portion, an electrical heating unit and a sensing circuit unit. The membrane layers are formed on the substrate. The fixing portion is configured on the membrane layers and includes a notch. The notch and the membrane layers define a cavity. The electrical heating unit is configured on one membrane layer, and the sensing circuit unit is configured on another membrane layer. The electrical heating unit heats up to increase the pressure in the cavity according to an input voltage, so that the membrane layers have a small deformation. The sensing circuit unit outputs a test signal according to the small deformation.
    Type: Application
    Filed: December 27, 2012
    Publication date: March 27, 2014
    Applicant: KING YUAN ELECTRONICS CO., LTD
    Inventor: Wei-Jen Cheng
  • Patent number: 8661918
    Abstract: A force sensor of the present invention corrects the output voltages of Hall elements without using a temperature sensor in response to changes in the characteristics of a magnet and the Hall elements.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: March 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoichiro Ohta
  • Publication number: 20140007645
    Abstract: A detecting unit outputs an object signal corresponding to an inertial force. A first environment value is obtained at a first time point. A second environment value is obtained at a second time point. An environment difference value which is a difference between the first and second environment values is calculated. An environment change detection signal is output when an absolute value of the environment difference value is larger than a predetermined determination threshold. A first averaged signal is output by averaging a corrected signal in a predetermined period continuing to the first time point. A second averaging signal is output by averaging the corrected signal in a predetermined period continuing to the second time point. An offset difference value is stored when the environment change detection signal is output. The corrected signal is generated by adding the stored offset difference value to the object signal.
    Type: Application
    Filed: April 26, 2012
    Publication date: January 9, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Takeshi Uemura, Isao Hattori
  • Patent number: 8613232
    Abstract: A force sensor of the present invention corrects the output voltages of Hall elements without using a temperature sensor in response to changes in the characteristics of a magnet and the Hall elements.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: December 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoichiro Ohta
  • Publication number: 20130319071
    Abstract: An automated testing system includes systems and methods to facilitate inline production testing of samples at a micro (multiple microns) or less scale with a mechanical testing instrument. In an example, the system includes a probe changing assembly for coupling and decoupling a probe of the instrument. The probe changing assembly includes a probe change unit configured to grasp one of a plurality of probes in a probe magazine and couple one of the probes with an instrument probe receptacle. An actuator is coupled with the probe change unit, and the actuator is configured to move and align the probe change unit with the probe magazine and the instrument probe receptacle. In another example, the automated testing system includes a multiple degree of freedom stage for aligning a sample testing location with the instrument. The stage includes a sample stage and a stage actuator assembly including translational and rotational actuators.
    Type: Application
    Filed: August 8, 2013
    Publication date: December 5, 2013
    Applicant: Hysitron, Inc.
    Inventors: David James Vodnick, Arpit Dwivedi, Lucas Paul Keranen, Michael David Okerlund, Roger William Schmitz, Oden Lee Warren, Christopher David Young
  • Publication number: 20130247644
    Abstract: A pressure sensor that is implantable within a living being that wirelessly provides pressure data within the living being to a wireless receiver. The pressure sensor includes an elastic membrane to which at least one capacitive actuator is coupled for applying a known force to the membrane to determine membrane characteristics. The pressure sensor includes a force transducer contacting the membrane for determining the pressure within the living being and which includes an internal calibrating force mechanism. This calibrating force mechanism permits force transducer displacement away from the membrane where a zero force transducer reading is taken and then applying a calibrating force and taking another reading. From these two points, a force transducer characteristic is derived and, along with membrane characteristics, an accurate pressure within the living being is obtained from the sensor. An alternative embodiment replaces the capacitive actuators with a known mass and an external vibratory source.
    Type: Application
    Filed: December 8, 2011
    Publication date: September 26, 2013
    Applicant: ICPCHECK INC.
    Inventors: Marek Swoboda, Matias Gabriel Hochman, Mark Mattiucci, Fred Fritz
  • Patent number: 8371182
    Abstract: A mounting system for samples and instruments for use with a measuring device such as a surface forces apparatus has a housing and a sample mount assembly positioned within the housing. The sample mount assembly has a pivot arm having a first edge and a flexing section. A spring has a first end coupled to the pivot arm. A first sample holder is coupled to the second end of the spring. A second sample holder is positioned in proximity to the first sample holder.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: February 12, 2013
    Inventor: Jacob Israelachvili
  • Publication number: 20120297858
    Abstract: A moment calibrating apparatus (1) is provided with an elongated force transmitting member (6) for transmitting a force applied to the end portion thereof to a multi-component force gauge (5), a load applying mechanism (7) for applying a load without changing the direction of the force along a direction perpendicular to said end portion, and a calculation unit (8) for calculating a true moment free from the effect of a perpendicular load on the basis of the moment value around the axis in the direction orthogonal to the perpendicular direction, measured by the multi-component force gauge (5) under the condition that said perpendicular load along the direction perpendicular to said end portion is applied by the load applying mechanism (7), wherein a moment calibration of the multi-component force gauge (5) is performed using said true moment calculated by the calculation unit (8).
    Type: Application
    Filed: January 27, 2011
    Publication date: November 29, 2012
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yu Sumimoto, Takayuki Fukuda
  • Publication number: 20120266648
    Abstract: According to one aspect of the invention, a force measurement system includes a force measurement assembly, a motion base configured to displace the force measurement assembly, and an inertial compensation system configured to determine the inertial forces and/or moments resulting from the displacement of the force measurement assembly by the motion base. According to another aspect of the invention, a method for accurately determining the forces and/or moments applied to a surface of a force measurement device by a subject disposed thereon is disclosed, which includes the step of determining, by using an inertial compensation system, the inertial forces and/or moments resulting from the displacement of a force measurement assembly by a motion base. According to still another aspect of the invention, a force and/or motion measurement system having inertial compensation includes a motion acquisition system having a plurality of motion sensing devices configured to capture a subject's movement.
    Type: Application
    Filed: June 30, 2011
    Publication date: October 25, 2012
    Applicant: BERTEC CORPORATION
    Inventors: Necip Berme, Hasan C. Guler
  • Publication number: 20120260716
    Abstract: A method that includes comparing a first brake pressure measured at a first transducer that is part of a braking system on a lead powered unit of a distributed power (DP) system to a second brake pressure measured at a second transducer that is part of a braking system on a remote powered unit of the DP system. The method also includes determining whether the second transducer is functioning within designated operational parameters when the DP system is operating in a DP mode based on comparing the first brake pressure to the second brake pressure.
    Type: Application
    Filed: June 21, 2012
    Publication date: October 18, 2012
    Inventors: Eugene A. Smith, David Carroll Teeter, John William Brand
  • Publication number: 20120118036
    Abstract: The present invention generally relates to a system and method for improving the precision and applicability of microscale and nanoscale electromechanical systems. The system includes a device (such as an electrostatic sensor) for measuring parameters of a force associated with noise-induced background readings of a microscale or nanoscale electromechanical system, and a device (such as an electrostatic actuator) for applying a countering force to the electromechanical system.
    Type: Application
    Filed: October 11, 2011
    Publication date: May 17, 2012
    Applicant: Purdue Research Foundation
    Inventor: Jason Vaughn Clark
  • Publication number: 20120111087
    Abstract: A method is provided for compensating measuring errors for handling equipment with a drive carrier that includes a carrier part and driven drums for moving the steel cables arranged thereon and including a handling receptacle in which the handling receptacle is suitable for picking up loads and is connected to the carrier part by deflection pulleys via the support cables and a controllable lever mechanism that is at least connected to at least two support cables and with at least two force sensors that capture the forces of at least two support cables and a monitoring device that monitors the forces of the at least two force sensors. An adjustment angle of the controllable lever mechanism is captured by sensors and a correction of the cable forces based on the captured adjustment angle is carried in the monitoring device.
    Type: Application
    Filed: November 2, 2011
    Publication date: May 10, 2012
    Applicant: tecsis GmbH
    Inventors: Hartmut Fürniss, Drazen Rot
  • Publication number: 20120060581
    Abstract: A system and method for determining the compressive strength of pellets are presently disclosed. A system includes a moveable feed tray adapted to support a plurality of pellets to be tested, a platen below the moveable feed tray and opposite a ram capable of applying compressive force to a pellet, a drive motor engaging the moveable feed tray, and a compressive force monitoring system including a force sensor. A method includes providing a feed tray and positioning a ram at a first position above a platen, advancing the feed tray to position a pellet at a test position between the ram and the platen, detecting the non-arrival of the pellet at the test position, retracting the ram from the first position, advancing the feed tray and operating the ram to determine the compressive strength of the pellet. Also disclosed is a calibration method for a compression test system.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 15, 2012
    Applicant: CLIFFS NATURAL RESOURCES INC.
    Inventor: Craig Maki
  • Publication number: 20120060582
    Abstract: Methods are disclosed for calibrating a force constant of a movable stage. In an exemplary method, in first and second preliminary pre-stepping motions of the stage, a baseline force and a calibration force, respectively, as exerted by the stage are measured. From a force-variation ratio of the baseline force and calibration force an inverse closed loop factor is estimated. In at least one subsequent pre-stepping motion of the stage before a respective use of the stage for holding an object, a residual force-variation ratio is estimated, a force-compensation factor is updated from the residual force-variation ratio, and a respective force-variation coefficient is determined from the force-compensation factor.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Inventor: Pai-Hsueh Yang
  • Publication number: 20120048540
    Abstract: A safety apparatus for catching a test fixture released from a shaft of a downhole tool during the uphole calibration and testing of the shaft force generation capability of the tool. The safety apparatus includes a hollow body having a distal end that will partially envelope the test fixture to catch the test fixture once the test fixture is released from the downhole tool. The safety apparatus further includes a proximal end portion that is releasably securable to the body of the tool. A method for testing and calibrating the tool is also provided.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 1, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Richard Darrell Housden, Kenneth Thomas Black
  • Patent number: 8117887
    Abstract: An operating device for testing torque wrenches is formed with a carrier for fixing a torque wrench to be tested. A transducer is coupled to the head portion of the torque wrench. A grip holder is provided for fixing the grip of the torque wrench and a deflecting mechanism is adapted for generating a torque to the head portion of the torque wrench to be tested. Further on a sliding mechanism is provided for sliding the grip in the grip holder without friction.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: February 21, 2012
    Assignee: Eduard Wille GmbH & Co. KG
    Inventors: Rainer Schwafertz, Lothar Schmitt
  • Publication number: 20110185458
    Abstract: Force, pressure, or stiffness measurement or calibration can be provided, such as by using a graphene or other sheet membrane, which can provide a specified number of monolayers suspended over a substantially circular well. In an example, the apparatus can include a substrate, including a substantially circular well. A deformable sheet membrane can be suspended over the well. The membrane can be configured to include a specified integer number of one or more monolayers. A storage medium can comprise accompanying information about the suspended membrane or the substrate that, with a deflection displacement response of the suspended membrane to an applied force or pressure, provides a measurement of the applied force or pressure.
    Type: Application
    Filed: August 6, 2009
    Publication date: July 28, 2011
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Jeffrey William Kysar, James C. Hone, Changgu Lee, Xiaoding Wei
  • Patent number: 7974803
    Abstract: This improved method of calibrating wood testing machines includes improved test bars, shim and software to direct the operator through the steps of calibration, storing interim results and calculating new calibration factors based on values read when the test bars are placed in the wood testing machine. This method avoids a number of problems in previous methods and apparatus. It properly corrects for changes in deflection in the measurement apparatus and changes in straightness of the test bars. The result is a more stable and reliable calibration that is referenced to precise measurement of the EI product for the test bar.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: July 5, 2011
    Assignee: Metriguard Inc
    Inventors: James D. Logan, James R Allen, Tony L. Lee
  • Patent number: 7818989
    Abstract: The invention relates to a device and a method for checking and/or calibrating a passenger recognition device arranged in a vehicle seat, in the case of which device a child's seat can be pressed against a vehicle seat and in the case of which method a vehicle seat is loaded with a child's seat and a corresponding reaction from the passenger recognition device in the vehicle seat is evaluated.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: October 26, 2010
    Assignee: Delphi Technologies, Inc.
    Inventor: Thomas Fischer
  • Patent number: 7717858
    Abstract: Apparatus for improving health of a user is provided, including a first sensor, adapted to measure a first physiological variable, which is indicative of a voluntary action of the user. A second sensor is adapted to measure a second physiological variable, which is substantially governed by an autonomic nervous system of the user. Circuitry is adapted to receive respective first and second sensor signals from the first and second sensors, and, responsive thereto, to generate an output signal which directs the user to modify a parameter of the voluntary action.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: May 18, 2010
    Assignee: Intercure Ltd.
    Inventor: Tamir Massad
  • Publication number: 20100116018
    Abstract: A method is provided for checking a knocking device which is intended for cleaning the surface of a heat exchanger element arranged on the inside of a boiler housing of a garbage incineration plant and which has a knocking ram guided through the wall of the boiler housing and movable in the direction toward the inside of the boiler. The heat exchanger element is deflected out of its position of rest into a deflection position by means of the knocking ram, and the force required for deflecting the heat exchanger element and/or the attenuation behavior of the heat exchanger element released after deflection are/is determined.
    Type: Application
    Filed: May 12, 2009
    Publication date: May 13, 2010
    Inventors: Felix Koller, Erich Vogler
  • Patent number: 7647808
    Abstract: An apparatus for calibration of a fluid-operated power torque tool having a housing and a drive has a non-turnable torque measuring unit for measuring a torque generated by the tool, a non-turnable abutment unit, a first connecting element configured for connecting the drive of the tool with the torque measuring unit, for measuring a torque generated by the tool when a fluid pressure is applied to the tool, an adjustable braking unit configured for providing an adjustable braking force, a second connecting element configured for connecting the housing of the tool with the adjustable braking unit to apply the adjustable braking force to the housing so as to increase a turning resistance to turning of the housing of the tool, so that when the tool is operated the housing of the tool starts turning at a force determined by the braking unit while the drive of the tool apply an opposite and equal force to the measuring unit, so that when the braking force is increased a fluid pressure required for the tool increas
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: January 19, 2010
    Inventor: John K. Junkers
  • Patent number: 7640130
    Abstract: Systems and methods for effectuating verification and certification of verifiable devices. Preferably, but not necessarily, such certification occurs or is communicated remotely. A verifiable device may be directly or indirectly connected to an appropriate regulatory agency through a communication mechanism. One or more tests may be performed on the verifiable device to verify that the device is functioning properly. The test results are directly or indirectly transmitted to the regulatory agency. If the tests were passed then the verifiable device may be approved for use. When self-certification or remote certification is provided for, the need for in-person verification and certification procedures by agency personnel may be eliminated.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: December 29, 2009
    Assignee: Mettler-Toledo, Inc.
    Inventors: John Scott Churan, Philip Mark Metzler
  • Publication number: 20090319203
    Abstract: A system determines pedaling effort of a bicycle and includes a first detector to generate a first sensor signal responsive to passage of a force transmission chain across a first frame-fixed point located in proximity to the force transmission trajectory of the force transmission chain, a second detector for generating a second sensor signal responsive to passage of a force transmission chain across a second frame-fixed point located in proximity to the force transmission trajectory of the force transmission chain, and a controller configured to receive the first and second sensor signals and configured to determine a first pedaling parameter proportional to tension of the force transmission chain by using the first and second sensor signal. A corresponding method for determining pedaling effort of a bicycle, and a computer program distribution medium including instructions for executing a computer process in a digital processor are also disclosed.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 24, 2009
    Applicant: POLAR ELECTRO OY
    Inventors: Kalevi Kalliomaki, Jorma Honkala, Heikki Prokkola, Mika Niemimaki
  • Publication number: 20090249857
    Abstract: The invention relates to a device and a method for checking and/or calibrating a passenger recognition device arranged in a vehicle seat, in the case of which device a child's seat can be pressed against a vehicle seat and in the case of which method a vehicle seat is loaded with a child's seat and a corresponding reaction from the passenger recognition device in the vehicle seat is evaluated.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 8, 2009
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventor: Thomas Fischer
  • Patent number: 7574892
    Abstract: The invention relates to a device and a method for checking and/or calibrating a passenger recognition device arranged in a vehicle seat, in the case of which device a child's seat can be pressed against a vehicle seat and in the case of which method a vehicle seat is loaded with a child's seat and a corresponding reaction from the passenger recognition device in the vehicle seat is evaluated.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: August 18, 2009
    Assignee: Delphi Technologies, Inc.
    Inventor: Thomas Fischer
  • Patent number: 7536924
    Abstract: A high frequency flexure-based dynamometer for measuring vibrations to use in determining cutting forces in a tool is disclosed. The dynamometer device may operate within a pre-selected high frequency range while measuring cutting forces less than about 1 N. The dynamometer may include two coupled flexures that interact to produce vibration modes at the edge of a selected bandwidth of interest. These modes may produce a frequency response function within the desired frequency band that has a magnified response and is substantially constant. The dynamometer may include a workpiece mounted to one of the two flexures and a one or more precision accelerometers mounted to the first or second flexures. Finite element analysis may be used to optimize the flexure design.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: May 26, 2009
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Tony Lavaun Schmitz, Gregory Scott Duncan, John Charles Ziegert, David Corbin Burton
  • Patent number: 7532428
    Abstract: A clamping mechanism having clamping jaws is provided for holding an object. The clamping mechanism comprises a solenoid pad connected to at least one of the clamping jaws which is operative to actuate movement of the clamping jaw, and a solenoid motor that is operative to attract the solenoid pad towards it when it is energized. Further, a voice coil motor is rigidly coupled to the solenoid pad to drive the solenoid pad in directions towards or away from the solenoid motor.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: May 12, 2009
    Assignee: ASM Technology Singapore Pte Ltd.
    Inventors: Ka Shing Kenny Kwan, Tingyu He
  • Publication number: 20080295597
    Abstract: System and method for mitigating errors in electrostatic force balanced instrument is provided. The system and method mitigate errors in measurement readings caused by charge buildup in force balanced instruments that employ charge pulses to generate an electrostatic force to null an inertial proof mass disposed between opposing electrodes. The system and method mitigate charge buildup by applying charge pulses to each opposing electrode of a sensing element for a given charge cycle time period in a normal polarity configuration followed by charge pulses to each opposing electrode of the sensing element for a second given charge cycle time period in a reverse polarity conjuration.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Robert E. Stewart, Robert Griffith
  • Publication number: 20080264141
    Abstract: A weighing scale includes a platform on which an object to be weighed is placed, a weight measurer for outputting weight data indicating an apparent weight value of the object to be weighed, and an acceleration sensor for measuring components of the gravitational acceleration exerted on the weighing scale. A memory stores compensation factors with sets of components of the gravitational acceleration, each of the first compensation factors being a ratio between the true weight value of a material and an apparent weight value of the material, which is assumed to be measured by the weight measurer when the planar surface is inclined at an angle. The weighing scale further includes a compensator that refers to the memory for obtaining an appropriate compensation factor corresponding to the components of the gravitational acceleration currently being measured by the acceleration sensor.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 30, 2008
    Inventor: Masayuki Kenmochi
  • Publication number: 20080148805
    Abstract: A sensor calibration device and method of construction for a force variation machine includes a circular plate having a test measurement region defined thereon. The test measurement region has a circumferentially extending inner track and a circumferentially extending outer track, the outer track having a projection and a valley for sidewall bulge and valley simultion formed therein and the inner track having a first and a second step formed therein separating the inner track into outward and inward inner track portions. A circumferentially extending radial edge track is provided having a first and a second step formed therein separating the edge track into outward and inward edge track portions. The projection and valley on the outer track have a depth equivalent to tire sidewall bulge and valley limits, respectively. The first and second steps in the inner track have a depth equivalent to a tire lateral run-out limit.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Inventors: John Michael Mahoney, Robert Edward Daly, Steven Carl Justice
  • Publication number: 20080127711
    Abstract: This invention is device and method for electronic measurements of the force and torque applied to a work piece. The measured values are visually displayed, audibly indicated, and/or transferred in electronic formats to other controlling devices. The values could be displayed in different physical measuring units, and as an average or peak. The device produces different output signals when the torque applied equals or exceeds predetermined values. This device and method provide an automatic, accurate, and easy calibration, which could be self-calibration or in-the-field calibration. It has protection from accidental activation of the switches, and provides a permanent record of the incidents in which the device was operated at conditions beyond its specifications. It provides a manual and/or automatic scale selection to improve the accuracy.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 5, 2008
    Inventor: TAREK A.Z. FARAG
  • Patent number: 7331209
    Abstract: A method and system for correcting for the inertial error of a transducer as a function of frequency or effective mass coupling.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: February 19, 2008
    Assignee: MTS Systems Corporation
    Inventors: Byron J. Saari, Steven C. Soderling
  • Patent number: 7100419
    Abstract: A method of simulating a dynamic force event comprises rotating a cam about an axis according to a rotational speed profile and biasing a follower against a surface of the cam as the cam rotates so that the follower moves on the surface and imparts a braking force against the surface. The method further measures the braking force on the rotating cam with a measurement device operatively connected to the cam, the braking force varying according to the friction between the cam surface and follower moving against one another. In another aspect of the invention, a method of calibrating a testing machine measures a braking force resisting movement of a first body over time to produce a simulated dynamic force response of the first body and compares it with a standard dynamic force response to calibrate the testing machine.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: September 5, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Peter D. Honer, Oliver P. Renier, Peter S. Lortscher
  • Patent number: 7089775
    Abstract: 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 an arrangement for detecting at least one defined state of the sensor. When the sensor is in a defined state thusly detected, a corresponding adjustment of the measured value of the sensor may be implemented within the framework of the method.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: August 15, 2006
    Assignee: Robert Bosch GmbH
    Inventors: Bernhard Mattes, Ulrike Groeger
  • Patent number: 6948387
    Abstract: 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 mechanism is positioned in operational relationship with the arm. An indexing means is adapted to change positions of the clamping device relative to the contact means incrementally as said arm maintains contact with the contact means. The sensing mechanism is capable of sensing feedback from said arm at various positions of the clamping device relative to the contact means. The apparatus is particularly suitable for measuring a clamping force and/or a clamping gap between clamping arms of the clamping device.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: September 27, 2005
    Assignee: ASM Technology Singapore PTE LTD
    Inventors: Chong Hao Chen, Wei Liu, Ka Shing Kenny Kwan
  • Patent number: 6937143
    Abstract: The present invention relates to a vehicle passenger detecting apparatus capable of detecting an unoccupied-seat state through the use of existing signals in a vehicle and correcting an unoccupied-seat reference value with a simple configuration. In a case in which an ignition key switch and a buckle switch are in off conditions and a load detecting value, which is the sum of measurement data from load sensors in these conditions, falls below a predetermined unoccupied-seat load value, an occupied-seat reference value serving as a load measurement standard for detection of a state of a vehicle passenger is corrected using the load detection value. This eliminates the influence of vibrations stemming from engine revolutions and electrical noises and enables the reference value to be corrected using a stabler load detection value.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: August 30, 2005
    Assignees: Denso Corporation, Fuji Jukogyo Kabushiki Kaisha
    Inventor: Koji Ohtaka
  • Patent number: 6928853
    Abstract: A transducer including a deformation body with a strain gage produces hysteresis-affected measured values based on the strain of the deformation body. Each measured value is to be corrected by the hysteresis error. For this purpose, a hysteresis model is formed from a recorded loading characteristic curve and the theory of the dipole density of the oriented elementary dipoles in the interior of the deformation body. With the aid of the hysteresis model, and the determined hysteresis-affected measured values, and in connection with the acquired loading history, a correction value is derived and used to correct the hysteresis error.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: August 16, 2005
    Assignee: Schenck Process GmbH
    Inventor: Hans Guenter Koenig