Mechanical Measurement System Patents (Class 702/33)
  • Patent number: 7072775
    Abstract: A digital flowmeter can include a vibratable conduit with a mixture of a liquid and a gas flowing therethrough. A driver can be connected to the conduit and can be operable to impart motion to the conduit where a sensor can also be connected and can be operable to sense the motion of the conduit. A digital transmitter can also be connected to the conduit and can include a void fraction determination system configured to determine a gas void fraction of the mixture, a viscosity determination system configured to determine a viscosity of the liquid in the mixture, and a flow parameter correction system operable to determine a flow parameter associated with the flowing mixture, based on the gas void fraction and the viscosity.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: July 4, 2006
    Assignee: Invensys Systems, Inc.
    Inventors: John Hemp, Hoi Cheong Yeung
  • Patent number: 7072774
    Abstract: A system and method for determining the approximate weight of metal consumables used by an electric arc welder over a period of welding time, the system comprises a program to calculate the total energy exerted by the welder over a period of welding, a divider to divide the total energy by a number including a power of a selected non-unity factor to obtain said weight. When the energy is in mega joules the factor is in the range of 3.2–4.2 and preferably approximately 4.0.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: July 4, 2006
    Assignee: Lincoln Global, Inc.
    Inventor: William S. Houston
  • Patent number: 7069182
    Abstract: A database interpolation method is used to rapidly calculate a predicted optical response characteristic of a diffractive microstructure as part of a real-time optical measurement process. The interpolated optical response is a continuous and (in a preferred embodiment) smooth function of measurement parameters, and it matches the theoretically-calculated optical response at the database-stored interpolation points.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: June 27, 2006
    Assignee: Tokyo Electron Limited
    Inventors: Kenneth C. Johnson, Fred E. Stanke
  • Patent number: 7069185
    Abstract: A computerized machine control (CMC) diagnostic system communicates with a computerized machine controller that utilizes a control program to control the operation of a machine through the use of a plurality of digital channels. In general terms, the system includes a data acquisition component, a data storage component and a viewing component. The data acquisition component queries and acquires time-based transition data about the plurality of digital channels. The data storage component stores the acquired transition data in order to establish an historical pattern of the transition data that can be compared to currently acquired transition data. The historical pattern of transition data is established independently of the control program. Upon comparison of the current transition data to the expected, historical pattern of transition data, a determination about the operational status of the machine being controlled can be made. The operational status can then be displayed on the viewing component.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: June 27, 2006
    Assignee: Wilson Diagnostic Systems, LLC
    Inventors: Dennis C. Wilson, Brian Deviley
  • Patent number: 7054761
    Abstract: In a system for analyzing the condition of a machine having a rotating shaft and a measuring point, a client part communicates with a supplier part. The client part includes: at least one sensor at the measuring point generating measurement data dependent on shaft rotation; an apparatus analyzing machine condition based on the measurement data by processing condition data and measurement data, including performing condition monitoring functions and registering use thereof; a communication port communication with the supplier part computer; a user input/output interface coupled to the data processor; a request generator to request usage amount for at least one condition monitoring function using the interface, the analysis apparatus supplying the request to the supplier part computer through the communication port; a key receiver for at least one condition monitoring function; a key verifier; and a device to change a parameter controlling allowed use responsive to an accepted key code.
    Type: Grant
    Filed: January 20, 2003
    Date of Patent: May 30, 2006
    Assignee: SPM Instrument AB
    Inventors: Stefan Lindberg, Hakan Hedlund, Jim Kummelstam, Jarl-Ove Lindberg
  • Patent number: 7054760
    Abstract: Fuel flow information is generated in an engine compartment and transmitted for display on the fuel page(s) of a GPS signal receiver located in view of a vehicle operator. A fuel transducer coupled to a pre-programmed micro-controller are provided as an integrated single unit in the engine compartment of the vehicle (e.g., an aircraft). The integrated transducer/micro-controller unit outputs RS232 fuel flow signals to the GPS signal receiver without requiring any extra panel space. Since the transducer/micro-controller is already pre-programmed to compensate for the proportionality or “K” factor, no further calibration or compensation programming is needed at installation time (or when one composite transducer/computer unit is substituted for another). Separate transducer/micro-controller power supply and grounding connections suppress common mode noise. A blinking LED power/fuel flow visual display on the unit in the engine compartment helps trouble shoot power and/or transducer problems.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: May 30, 2006
    Inventor: John S. Youngquist
  • Patent number: 7050934
    Abstract: Embodiments of the invention provide methods for enhancing the downstream product yield without significantly affecting the yield of components from which downstream products are made or enhancing yield of the components without significantly affecting the downstream product yield and performance. In one embodiment, a method comprises obtaining a failure rate of the downstream manufacturing process as a function of each of a plurality of component performance parameters of the current manufacturing process of the component; optimizing weighted factors based on correlation between the current manufacturing process of the component and the downstream product, the weight factors each corresponding to one of the plurality of component performance parameters; and calculating figure of merits (FOM) with respect to the plurality of component performance parameters of the current manufacturing process of the component, the FOM including the weighted factors.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: May 23, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Yong Shen, Jing Zhang
  • Patent number: 7047156
    Abstract: The inherent smoothing in bending stiffness measurement of wood boards as occurs in the machine grading of lumber can mask the effect of knots and other local characteristics affecting structural value. Improved estimates of local (pointwise) stiffness will be useful in decisions about further processing and use of a tested board. Measured compliance is reciprocally related to measured stiffness and is the convolution of local compliance and a “span function”. Span function is specific to the bending span configuration used and can change during measurement of a board. A general procedure for computing span function, which heretofore has been known only for simple bending spans, is disclosed. A Kalman filter uses this and other available information to optimally estimate local compliance from an observed relationship between local compliance and state variables of a state-space model. Method for linear algebraic determination of local compliance also depends on span functions and is disclosed.
    Type: Grant
    Filed: December 14, 2002
    Date of Patent: May 16, 2006
    Assignee: Kierstat Systems LLC
    Inventors: Friend K. Bechtel, Ning Wang, Timothy C. Hanshaw, Chin S. Hsu
  • Patent number: 7047142
    Abstract: A monitoring system for monitoring the state of a monitoring object apparatus so as to detect a foretoken of failure. A host computer (100) of a manufacturer/dealer of a clinical check apparatus (200) receives state data of respective parts from parts sensors (203a, 203b, . . .) of the clinical check apparatus (200) of a user and the received state data is compared to a prediction condition stored in a condition storage block (104) in a state monitoring block (105), thereby detecting a foretoken of failure. The prediction condition includes a condition created in accordance with service life of each of the parts and a condition created upon occurrence of a failure in accordance with transition of the state data prior to the occurrence of the failure.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: May 16, 2006
    Assignee: Arkray, Inc.
    Inventors: Atsushi Wada, Toshihiko Harada
  • Patent number: 7036703
    Abstract: The present invention relates to a hand-held working tool, such as a setting device used for driving fastening elements such as nails, bolts, pins and the like into a surface, or an at least partially percussive hand-held tool having a housing part (11) and a working mechanism such as a setting or striking mechanism arranged inside the housing of the device and having at least one sensing device (17) for sensing acceleration forces occurring during a setting or striking pulse as well as a handle. For improving this type of hand-held working tool (10) an interface (30) for data communication and data output is arranged on the hand-held working tool.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: May 2, 2006
    Assignee: Hilti Aktiengesellschaft
    Inventors: Mario Grazioli, Joachim Keck
  • Patent number: 7031850
    Abstract: A method and apparatus of diagnosing leakage in a fluid power system including a fluid supply line operatively connected to a plurality of valves which are connected to a plurality of actuators. Flow signals generated by a flow sensor disposed in the supply line are processed to obtain fluid consumption over time values and signals used to change the state of the plurality of valves are processes to determine a plurality of episodes. Each of the plurality of episodes corresponds to a pressurization of a particular branch of a particular actuator. The flow signals and the signals used to change the state of the valves are combined to calculate a change in air consumption value for each valve change of state. The change in air consumption values for each episode are compared to a predetermined reference value to determine any deviation corresponding to a particular one of the plurality of episode.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: April 18, 2006
    Assignee: Festo AG & Co. KG
    Inventors: Sachin Kambli, Jens Engelhardt, Christian Boehm
  • Patent number: 7031778
    Abstract: A system for monitoring an industrial process and taking action based on the results of process monitoring. Actions taken may include process control, paging, voicemail, and input for e-enterprise systems. The system includes an input module for receiving a plurality of parameters from a process for manufacture of a substance or object. The system also includes a library module. The library module includes a plurality of computer aided processes. Any one of the computer aided processes is capable of using each of the plurality of parameters to compare at least two of the plurality of parameters against a training set of parameters. The training set of parameters is generally predetermined. The computer aided process is also capable of determining if the at least two of the plurality of parameters are within a predetermined range of the training set of parameters. Additionally, the system includes an output module for outputting a result based upon the training set and the plurality of parameters.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: April 18, 2006
    Assignee: Smiths Detection Inc.
    Inventors: Chang-Meng B. Hsiung, Bethsabeth Munoz, Ajoy Kumar Roy, Michael Gregory Steinthal, Steven A. Sunshine, Michael Allen Vicic, Shou-Hua Zhang
  • Patent number: 7023172
    Abstract: An electric motor control apparatus of this invention estimates changes in temperature of a semiconductor device to compute temperature change amplitude 108 based on an output current signal 105 computed from a current flowing through the semiconductor device of a switching circuit 5, an operating frequency signal and a carrier frequency signal by a temperature change estimation part 11, and makes conversion into the number of power cycles 110 corresponding to the temperature change amplitude 108 from power cycle curve data stored in a power cycle curve data storage part 14 and computes a thermal stress signal 111 by a thermal stress computation part 13, and does life estimation of the semiconductor device based on the thermal stress signal 111 and produces an output to a display part 16 as a life estimation result signal 112 by a life estimation part 15a.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: April 4, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Masanori Katou
  • Patent number: 7024333
    Abstract: A coordinate measuring apparatus includes probe pin(s) fixed to a probe head displaceable in coordinates. The probe pin includes probe shafts having respective ends to which probe balls are attached. At least two of the probe shafts are differently oriented when the probe pins are fixed to the probe head. A control and evaluation unit controls the course of measurement and evaluates the measuring points recorded. At least one probe shaft is determined for measuring a geometric element on a workpiece by determining at least one characteristic piece of directional information for the points to be measured of a geometric element to be measured on the workpiece, either on the basis of the measured measuring points or according to predefined nominal data of the geometric element. At least one probe shaft for measuring the measuring points is determined from the directional information.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: April 4, 2006
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Rudolf Rögele, Dieter Kalmbach
  • Patent number: 7024315
    Abstract: A method of detecting a damaged feature within a structure includes embedding a plurality of thin piezoelectric ceramic sensors on the structure. A first sensor is excited so that the first sensor produces a responsive signal in the structure. The responsive signal is received at a second sensor. The presence or absence in the received responsive signal of at least one predetermined signal characteristic is determined, where the predetermined signal characteristic is related to existence of the damage feature.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: April 4, 2006
    Assignee: University of South Carolina
    Inventor: Victor Giurgiutiu
  • Patent number: 7013224
    Abstract: The method includes receiving parameters input by a user and calculating crack behavior estimations based on the received parameters by using a plurality of accessible crack behavior models. The crack behavior estimations calculated from each of the models are displayed to the user in order to illustrate how the different models compare in calculating a desired crack behavior profile. The displayed crack behavior estimations utilize a compilation of both historical crack growth rate data, as well as predicted crack growth rate data, and may be displayed as an estimated crack growth rate versus time, or as estimated crack growth over time. These parameters are displayed graphically for each crack behavior model in order to enable the user to make a comparison for each crack growth model.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: March 14, 2006
    Assignee: General Electric Company
    Inventors: Edward David Landry, James Elmer Leonard, Randy Raymond Stark, Ronald Martin Horn
  • Patent number: 7010460
    Abstract: Engine cylinder contribution analysis is provided. An engine cylinder contribution tester includes a displacement measurement device and a signal analyzer. The displacement measurement device detects engine block movements or displacement relative to a fixed position caused by a poorly contributing cylinder. The displacement measurement device provides a displacement signal to the signal analyzer. The signal analyzer includes a cylinder contribution module for evaluating the displacement signal. If a particular cylinder is contributing less than the average of the other cylinders, the displacement signal indicates engine block movement associated with a lack of contribution from that cylinder.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: March 7, 2006
    Assignee: Snap-On Incorporated
    Inventors: Dale A. Trsar, Lee M. Snorteland, Kenneth A. McQueeney, Thomas D. Loewe
  • Patent number: 7010434
    Abstract: A complementary division condition determining method and program and a complementary division method able to propose the optimum complementary division conditions for suppressing pattern displacement and mask destruction, wherein an internal stress of a mask is determined based on a displacement of a peripheral mark in a case when forming an opening in the mask and this value is used for first analysis (step ST12), pattern displacement and stress concentration occurring due to openings of split patterns are analyzed based on a first analysis model in a first analysis (step ST13), and a displacement due to external force of the membrane between the split patterns is analyzed in a second analysis (step ST14).
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: March 7, 2006
    Assignee: Sony Corporation
    Inventors: Isao Ashida, Kohichi Nakayama
  • Patent number: 7010456
    Abstract: A pagewidth printhead assembly (1) includes at least one pagewidth printhead received in a printhead supporting shell (4). The shell comprises a longitudinal laminated structure defining an interior space and formed from continuous layers of at least two materials (10,11). The layers are odd in number and disposed symmetrically about a central layer (10).
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: March 7, 2006
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook
  • Patent number: 6990431
    Abstract: Systems, software and methods of embodiments of the present invention are able to monitor and evaluate the efficiency of an equipment operating cyclically to displace a variable workload without any input from an operator or the use of specialized metering equipment. A cyclic equipment efficiency monitoring system includes a workload calculator for determining the workload being accumulated and displaced through a system having an equipment operating cyclically by using the equipment status signals and clock signals. An efficiency calculator extracts a probable efficiency. The accuracy is increased by a self adjustment mechanism. A data quality certification mechanism verify that workload and efficiency values are within possible range and declare alarm conditions, high variation conditions or maintenance conditions. A variation alarm gate generates an alarm if the workload or the efficiency are outside acceptable limits.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: January 24, 2006
    Assignee: Municipal and Industrial Data Labs, Inc.
    Inventors: Benoît Beaudoin, Jonathan Corriveau
  • Patent number: 6990419
    Abstract: A system for identifying a signal source in a predetermined space, the system including multiple sensing units arranged at different locations to detect signals in the predetermined space. The system also includes one or more recording units arranged to separately and simultaneously record a detected signal at each of the sensing units that detects the signal. The system further includes a processing unit including a first storage area configured to store a set of identified signatures corresponding to multiple signal sources in the predetermined space, and a second storage area configured to store parameters related to the conditions under which the recordings of the signal are made. The processing unit also includes an identifying unit that is programmed to identify a signal source by comparing a determined signal spectrum with some or all of the signatures included in the set of identified signatures.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: January 24, 2006
    Assignee: Airbus France S.A.S.
    Inventors: Pierre Ramillon, Luc Collorec, Henri Cassan
  • Patent number: 6975948
    Abstract: In a method of identifying a source of a signal, the signal is recorded and then analyzed in order to determine its spectrum. The method includes the following steps: in parallel with recording the signal, storing parameters significant of the conditions under which the recording is made; after analyzing the signal and determining its spectrum, detecting lines emerging from the background noise of the signal, using a predetermined emergence threshold; comparing each line detected with some or all of a set of signatures of sources identified and inventoried in a database established prior to the recording; and for each line, and where applicable, selecting signatures that may correspond to the line and, as a function of the resulting signature/line pairs, consolidating, resolving ambiguity of, or quantifying the source corresponding to said line.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: December 13, 2005
    Assignee: Airbus
    Inventors: Pierre Ramillon, Luc Collorec, Henri Cassan
  • Patent number: 6963818
    Abstract: The invention detects loft time and/or speed of a vehicle and/or person during activities of moving and jumping. A loft sensor detects leaving the ground and returning to the ground. A microprocessor subsystem converts the sensed information to determine a loft time. A display shows the recorded loft time to a user of the system. A speed sensor can detect speed for selective display to the user, and height may also be determined during airtime.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: November 8, 2005
    Assignee: PhatRat Technology, Inc.
    Inventors: Peter Flentov, Dennis M. Darcy, Curtis A. Vock
  • Patent number: 6954683
    Abstract: Method and apparatus for performing diagnostics in a pneumatic control loop for a control valve. Pressure and displacement sensors normally provided with a positioner are used to detect operating parameters of the control loop. A processor is programmed to receive feedback from the sensors and generate fault signals according to a logic sub-routine. The logic sub-routine may include calculating mass flow of control fluid through spool valve outlet ports and comparing other operating parameters of the control fluid to detect leaks and blockages in the control loop. Once a fault is detected, the location of the root cause of the fault may be identified by characterizing operating parameters of the control loop at the time of the fault.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: October 11, 2005
    Assignee: Fisher Controls International LLC
    Inventors: Kenneth W. Junk, Annette L. Latwesen
  • Patent number: 6950780
    Abstract: A database interpolation method is used to rapidly calculate a predicted optical response characteristic of a diffractive microstructure as part of a real-time optical measurement process. The interpolated optical response is a continuous and (in a preferred embodiment) smooth function of measurement parameters, and it matches the theoretically-calculated optical response at the database-stored interpolation points.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: September 27, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Kenneth C. Johnson, Fred E. Stanke
  • Patent number: 6950763
    Abstract: Determining a shaft balance adjustment includes measuring an initial vibration of the shaft, determining if the initial vibration is greater than a predetermined value, and, if the initial vibration is greater than the predetermined value, determining an adjustment by choosing a best adjustment for each possible location for adjustments. Choosing the best adjustment may include choosing an adjustment that causes a lower amount of vibration than adjustments not chosen. Measuring an initial vibration may include using an accelerometer. Measuring an initial vibration may include using conditioning electronics in connection with the accelerometer. The predetermined value may be 0.01 ips.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: September 27, 2005
    Assignee: Simmonds Precision Products, Inc.
    Inventor: Eric Robert Bechhoefer
  • Patent number: 6947870
    Abstract: An apparatus and method is disclosed for modeling an electric submersible pump using a neural network, data from a deterministic model, and, optionally, data obtained from a real world electric submersible pump. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: September 20, 2005
    Assignee: Baker Hughes Incorporated
    Inventors: Dehao Zhu, Alex Crossley
  • Patent number: 6941244
    Abstract: Process control systems may include one or more diagnostic systems and/or processes. In particular implementations, a diagnostic system and process for a field instrument may include the ability to divide a signal input range into a plurality of zones with respect to an input axis or a time axis, measure input response characteristics for a zone with the field instrument, and store measurement data points for the zone in memory of the field instrument. The diagnostic system and process may also include the ability to transmit the measurement data points for the zone to a host application and, while transmitting the measurement data points for the zone, measure input response characteristics for a second zone with the field instrument.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: September 6, 2005
    Assignee: Dresser, Inc.
    Inventors: Yoji Saito, Kazuhiro Hashizumi, Alex Legere, Hongli Du
  • Patent number: 6937941
    Abstract: A system for determining impulse events of an asset by sampling and digitizing a complex signal sensed by a transducer monitoring the asset into a digitized signal with a sampling device operatively coupled to the transducer, transforming the digitized signal into a plurality of maximum and minimum value pairs each pair having an associated location correlated to a relative movement of a moving member of the asset with a processor operatively coupled to the sampling device, and a monitor and/or a computerized condition monitor having the processor integrally formed therewith or operatively coupled thereto for comparing at least one of the plurality of maximum and minimum value pairs and its respective location to at least one known value for determining impulse events based on the comparison step for providing asset protection.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: August 30, 2005
    Assignee: Bently Nevada, LLC
    Inventors: Roger A. Hala, Brian F. Howard
  • Patent number: 6936000
    Abstract: A process and apparatus for selecting or designing a product, such as a muffler, having a complex, content-free sound output which is less stressful or more pleasing. The process includes the steps of sensing at least one physiological response of a subject (21) while the subject listens to an initial content-free sound output, repeating the sensing step for a new content-free sound output, comparing the physiological responses, and selecting the sound output for use in selecting or designing the product which output produces the physiological response that is the least stressful or most pleasing to the subject. The apparatus includes an audio playback device (15), a sound recording (16) of the initial sound, a sound recording (16) of the new sound, and physiological monitoring apparatus (17) suitable for attachment to and monitoring of the physiological responses of the test subject (21) to the playback of the sound recordings.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: August 30, 2005
    Assignee: Flowmaster, Inc.
    Inventor: Ray T. Flugger
  • Patent number: 6937942
    Abstract: A method and apparatus is provided of detecting tool abnormality in a machine tool. Permissible minimum and maximum values of load current in a real cutting section are determined for a spindle motor and a servomotor during normal operation of the machine tool. The load current of the spindle motor and the servomotor is measured while the machine tool is operated. The load current measured in a real cutting section other than a non-cutting section is extracted by way of filtering the load current measured. A judgment is made as to whether the extracted load current is within a range between the minimum and maximum values. Occurrence of the tool abnormality is confirmed if the extracted load current falls outside the range. This enables the machine tool to detect not only overload condition due to excessive wear of a tool but also non-load condition induced by a tool breakage.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: August 30, 2005
    Assignee: Daewoo Heavy Industries & Machinery Ltd.
    Inventor: Sang Ho Lee
  • Patent number: 6937955
    Abstract: A method for calibrating a clinical analyzer having a dispenser, and for automatically aligning the dispenser of the clinical analyzer includes loading a calibration element at a portion of the clinical analyzer; moving a dispenser of the clinical analyzer in a pre-determined direction (Y) to a position over the calibration element; measuring the height (Z) from the dispenser to the calibration element and determining a position coordinate (Yi, Zi); storing the position coordinate (Yi, Zi); determining a maximum height (Zmax) for the dispenser positioned over the calibration element defined as position coordinate (Yopt, Zmax); and storing the position coordinate including the maximum height (Zmax) for the dispenser positioned over the calibration element.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: August 30, 2005
    Assignee: Ortho-Clinical Diagnostics, Inc.
    Inventor: Lawrence Alan Barnes
  • Patent number: 6934641
    Abstract: In order to determine movements of two subjects, two or more signals of different phase are obtained which depend on the movement, and processed by locating constellation status of the signals in at least one co-ordinate axis system, it must have at least six separate segments rotationally displaced. Where there are two or more co-ordinate axis systems, each must have an axis radiating from an origin. The change in the constellation states is monitored using at least two processed data samples obtained by sampling the signals at a suitable clock rate. It is possible to derive a prediction of values of the signal and filter the signals in dependence on the prediction. The second co-ordinate axis system may be rotatable relative to the first co-ordinate axis system enabling the provision of a movable region of uncertainty.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: August 23, 2005
    Assignee: Renishaw PLC
    Inventors: Mark A. Chapman, Raymond J. Chaney, Sergey Loukianov, Seamus McFadden
  • Patent number: 6934644
    Abstract: A method of determining a volume of fluid associated with a fluid storage and dispensing system, the volume of fluid having a height in the system, wherein the system include measurement apparatus for measuring the height. The method includes collecting a plurality of height measurement data from the measurement apparatus in a form readable by a computer; storing the plurality of height measurement data in a compressed matrix format in a computer memory; and performing regression analysis using the compressed matrix format to calculate the volume of fluid associated with the system.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: August 23, 2005
    Assignee: Warren Rogers Associates, Inc.
    Inventors: Warren F. Rogers, John R. Collins, Jillanne B. Jones
  • Patent number: 6925396
    Abstract: An instrument system for a press machine environment includes a monitoring apparatus to determine the flywheel speed, slide speed, and slide displacement relative to, for example, Top Dead Center. These measurements are used to determine the energy consumed by the slide as a function of slide displacement as its travels during its work stroke. A piston-cylinder combination is disposed at a die location to emulate a die set and to facilitate a determination of the load developed by the slide as it actuates movement of the piston. A computation of the work produced by the slide during piston movement can be determined on the basis of measurements of piston displacement and slide-induced pressure applied to the piston. A display plots various graphs to depict slide energy, slide work, and flywheel speed as a function of slide displacement.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: August 2, 2005
    Assignee: The Minster Machine Company
    Inventor: John Remington
  • Patent number: 6915216
    Abstract: A system adapted to determine a property of a paving-related material is provided. Such a system comprises a central computing system housing database, such as a geographic information system (GIS). A measuring device for selectively and directly measuring the property of the paving-related material is remotely disposed with respect to the central computing system and operably engaged with a locating device, such as a global positioning system (GPS) device, for determining a location of the measuring device when the property of the paving-related material is selectively measured thereby.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: July 5, 2005
    Assignee: Troxler Electronic Laboratories, Inc.
    Inventors: Robert Ernest Troxler, Andrew Kirk Dummer, James Daniel Pratt, Jr., William Finch Troxler, Jr., Michael E. Bienvenu, John Pjura, Robyn Lyn Myers, Dirk Steckman
  • Patent number: 6907361
    Abstract: An ultrasonic flow-measuring method determines the flow rate of a medium flowing through a line is determined by measuring the runtime of an ultrasonic signal that travels from a first ultrasonic transducer to at least one other ultrasonic transducer. The runtime of the ultrasonic signal as it makes m passes in immediate succession through a predefined path over a predefined path length and at a predefined angle relative to the flow direction is measured, and the runtime of the ultrasonic signal as it makes n passes in immediate succession through the predefined path over the predefined path length at the predefined angle relative to the flow direction is measured, with m and n being mutually different integers, and the dead time of the ultrasonic flow-measuring process is determined on the basis of the measured runtimes. This ultrasonic flow-measuring method permits real-time compensation for the dead time during the actual measuring process, the result being highly accurate measurements.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: June 14, 2005
    Assignee: Khrone A.G.
    Inventors: Marcel Meijlom Molenaar, Eugene Albert van Dijk
  • Patent number: 6907386
    Abstract: Disclosed is a method wherein a state description of the technical system for an error occurrence and a state description of the technical system for error-free operation is determined in order to detect sensor and/or actor errors. The attainable states for both descriptions are preferably determined by model checking. A varying number of states of both descriptions is formed, said states being checked as to whether they comply with predeterminable conditions (e.g. safety requirements).
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: June 14, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventor: Peter Liggesmeyer
  • Patent number: 6892152
    Abstract: A method for identifying a signal source in a predetermined space, the method including inventorying a set of identified signatures corresponding to a plurality of signal sources and recording a signal simultaneously at different locations of the predetermined space. Parameters related to the conditions under which the recordings are made are then stored, and a spectrum of the signal is determined. The method also includes detecting a line emerging from background noise of the spectrum by using a predetermined emergence threshold. The line is then compared with some or all of the signatures included in the set of identified signatures, and at least one signature corresponding to the line is selected to create at least one signature/line pair. Finally, a source of the signal is identified based on the selecting step.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 10, 2005
    Assignee: Airbus France S.A.S.
    Inventors: Pierre Ramillon, Luc Collorec, Henri Cassan
  • Patent number: 6871153
    Abstract: This dynamic calibration qualifier relates to a tool monitor and assembly qualifier that verifies that the correct number of fasteners have been properly installed into an assembly. The device monitors an analog signature created by the tool and has the ability to dynamically calibrate itself while the tool is running. In the preferred embodiment, the stored variable is a clutch offset identified during a calibration phase. In a pulse tool, the programmed microprocessor is configured to identify and store the peak pressure of the first three pulses which are averaged together. The clutch offset is added to the average pulse value from which the clutch threshold is generated.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: March 22, 2005
    Assignee: C.E. Electronics, Inc.
    Inventor: Richard G. Lysaght
  • Patent number: 6871162
    Abstract: A simple method of handling thermomechanical coupling for temperature computation in a rolling tire. First, the sensitivity of the tire elastic response to changes in material stiffness is characterized using the “deformation index”. Then, using a commercial finite element program and an appropriate user subroutine, heat generation is expressed as a function of the local temperature using a simple algebraic expression involving the temperature dependent material properties and the deformation indices. Temperatures are computed using the finite element program with the coupling information contained in the user subroutine. The result is a non-iterative method for a fully-coupled thermomechanical analysis of a tire. The effects of compound changes on tire temperature distribution can also be estimated using the deformation index. The method applies to the energy loss and temperature calculations under both steady-state and transient conditions.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: March 22, 2005
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Shingo Futamura, Arthur Allen Goldstein
  • Patent number: 6868366
    Abstract: A method is disclosed to monitor deflections in a turbine casing by: positioning gap sensors on a shell standard support surface and below an opposite surface of the shell arm support; each gap sensor monitoring a gap between the shell standard support surface and shell arm support; determining change in the planar slope of the shell arm support over the period of time based on the collected data, wherein changes in the slope indicate deflections in the casing.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: March 15, 2005
    Assignee: General Electric Company
    Inventor: Peter John Eisenzopf
  • Patent number: 6859760
    Abstract: A method and apparatus are described for remote semiconductor microscopy whereby video signals are broadcast from one or more microscopes to remote viewers. A live video signal is broadcast from the microscope over a network to remote personal computers located in the offices of process engineers. The office-based process engineers are provided real-time, or substantially real-time, views of a wafer, including peripheral views of the wafer outside cell array boundaries. The process engineer, in his office, can direct a technician, operating the microscope in the clean room complex, to display a desired cell region-of-interest with the microscope. As a result, the process engineers can more efficiently collaborate to solve process problems or even develop new process techniques.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: February 22, 2005
    Assignee: Micron Technology, Inc.
    Inventor: Michael J. Dorough
  • Patent number: 6850857
    Abstract: The present invention is directed to improving the accuracy with which a stationary array sensor provides cross directional measurements by providing an offset compensation to the stationary array sensor using the output of a scanning sensor associated with the manufacturing process. Exemplary embodiments correlate outputs from the stationary sensor array and the scanning array using a data reconciliation process. For example, a practical, real time data reconciliation of measurements from the scanning sensor and measurements from the stationary array sensor is achieved by computing offsets using a bank of Kalman filters to correlate outputs from the two sensors for each measurement zone, wherein each filter possesses a relatively simple computational structure. The Kalman filters can fuse the outputs from the stationary array sensor and the scanning sensor to track, and compensate, drift of the stationary array sensor.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: February 1, 2005
    Assignee: Honeywell International Inc.
    Inventors: Mario Ignagni, Dimitry Gorinevsky
  • Patent number: 6845326
    Abstract: An optical sensor for use in measuring constituents of an agricultural product. An optical sensing window passes a stream of the agricultural product, and a radiation source irradiates the stream as it passes through the optical sensing window. A receiver receives radiation transmitted through the stream and converts it into a corresponding electrical signal using a spectrometer. The electrical signal is digitized to produce a series of data points corresponding to particular wavelengths. A processor normalizes the data points using a reference value in order to generate processed data points that can be used to predict a constituent content of the agricultural product.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: January 18, 2005
    Assignee: NDSU Research Foundation
    Inventors: Suranjan Panigrahi, Guangjun Zhang
  • Patent number: 6839639
    Abstract: Shaped composite structures which are strong, stiff and hard and, at the same time, having high toughness, comprise a matrix, for example a cement or ceramics based matrix and embedded therein a plurality of plate shaped or at lest 60 mm thick elongated reinforcement components, the reinforcing component having at least 1.5 times higher tensile strength that the matrix, the minimum volume per cent concentration of the reinforcement components being related in the manner described in the specification to their tensile strength and (in case of elongated reinforcement components) also their thickness and to the compressive strength and modulus of elasticity and modulus of elasticity of the matrix. Methods for modeling and designing such structures are also disclosed, as are methods for establishing the structure for smaller matrix building blocks which may be pre-fabricated and which are arranged around pre-arranged reinforcement bodies and then fixed to each other and to the reinforcement.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: January 4, 2005
    Assignee: Giantcode A/S
    Inventor: Hans Henrik Bache
  • Patent number: 6839638
    Abstract: A method and apparatus is provided for calibrating a payload monitor of a work machine. Altering the load carrying body of a work machine can adversely impact the accuracy of a payload monitor. The present invention provides a calibrating technique using an alternate coefficient that is programmed into the payload monitor. The alternate coefficient is then used by the payload monitor.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: January 4, 2005
    Assignee: Caterpillar Inc.
    Inventors: Kevin J. Lueschow, Giles K. Sorrells
  • Patent number: 6836734
    Abstract: The present invention describes non-invasive online system for discrete measurements of phase levels in a converter or pyrometallurgical furnace in smelting and conversion processes, applying mechanical waves generated by a transducer placed transversally to an air blowing tuyere. Multiple transducers are placed in the direction of the cross axis or longitudinal axis of the phases plane and facing the different limiting zones between the different phases present inside the converter or pyrometallurgical furnace. A mechanical waves sensor or detector that receives the signal (echo pulses) reflected by the different limiting zones so as to determine the amplitude of the reflected signal that has a characteristic and different level for each phase, correlate the amplitude and determine the limiting zone of the phases that face the transducers.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: December 28, 2004
    Inventors: Luis Paredes Rojas, Alfredo Zolezzi Garreton
  • Publication number: 20040260481
    Abstract: In order to improve the monitoring of a machine with movable parts, such as in particular an industrial robot, and for increasing safety, the invention provides a method for monitoring movable parts of a machine, such as an industrial robot, in which at least two different measured quantities are detected and at least one of these measured quantities is processed to a first measure result in such a way that it is comparable with another measured quantity or a second measure result obtained on the basis thereof, that the first measure result is compared with another measured quantity or a measure result obtained on the basis thereof and that a signal characterizing the comparison result is provided.
    Type: Application
    Filed: January 28, 2004
    Publication date: December 23, 2004
    Inventors: Peter Heiligensetzer, Alwin Berninger, Norbert Settele
  • Patent number: 6829541
    Abstract: A method and apparatus for testing automobile transmission clutches are provided by the present invention. An operator assembles the clutch with the components on a fixture. The clutch has an internal spring assembly to be compressed and a circlip (retaining ring) to be installed to hold the spring under tension. The circlip is installed into a tool that is placed onto the clutch assembly and a press is used to push the circlip down over a cone in the installation tool, snapping the circlip closed in its final position. A different tool is then placed onto the clutch assembly that holds the clutch pack together. The press is again operated and the cylinder compresses the clutch pack. By applying air pressure to the clutch assembly through the fixture, the clutch pack is forced upwards to its closed position. The distance traveled by the clutch pack is visible on a linear gauge. This distance is the Clutch Clearance.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: December 7, 2004
    Assignee: Autocraft Industries, Inc.
    Inventor: Rafal Rydzewski