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| Number | Title | Issue Date |
| 7509861 | Method and device for local spectral analysis of an ultrasonic signal The method decomposes the radio frequency signal into sub-bands by filtering, for example with a time-frequency transform. From the coefficients acquired through decomposition a matrix of spectral coefficients is obtained, from which local estimators are obtained, c... | 03/31/2009 |
| 7437935 | Continuous chatter boundary criteria for manufactured parts A chatter boundary system includes a measuring module, a comparison module, and a boundary module. The measuring module measures and collects samples of undulations in a manufactured part. The comparison module classifies a sound signal generated by the undulations ... | 10/21/2008 |
| 7430483 | Method and apparatus for diagnosing a mechanism A method of analyzing variations in an indicator of the behavior of a mechanism, in which noise is extracted, and any discontinuities from an indicator in order to obtain a trend, variations in the trend are compared with one or more reference values; and a fault of... | 09/30/2008 |
| 7341410 | Dynamical instrument for machining A dynamical instrument for machining comprising a sensor responsive to a non-rotating part of a machine proximate the tool of the machine for outputting a vibration signal, and a processor responsive to the sensor output configured to calculate a plurality of signat... | 03/11/2008 |
| 7339836 | Data collector A data collector to be installed in an electrical storage device has a data reader and a base. The data reader is to be connected to the electrical storage device to store status data detected by the electrical storage device. The stored data has a specific format. ... | 03/04/2008 |
| 7326917 | Wear monitor for turbo-machine A wear determination device for determining vibration in a turbine engine component to reduce wear in a turbine engine. The wear determination device may be capable of measuring vibrations in a turbine engine component. The vibration measurement may be used to deter... | 02/05/2008 |
| 7324919 | Apparatus for analysing the condition of a machine An apparatus for analysing the condition of a machine having a rotating shaft, includes: at least one input for receiving measurement data from a sensor for surveying a measuring point of the machine, the measurement data being dependent on rotation of the shaft; an... | 01/29/2008 |
| 7321846 | Two-wire process control loop diagnostics A diagnostic device for coupling to a process control loop includes digital communication circuitry configured to receive a digital communication signal from the process control loop. The digital communication signal is a digitally modulated analog signal on the pro... | 01/22/2008 |
| 7318350 | Valve monitoring system and method A valve monitoring system includes an alert generation system and a memory. The memory encodes baseline acoustic emission data on the valve for a predetermined period of operation. The alert generation system is arranged to receive acoustic emission data for the val... | 01/15/2008 |
| 7317994 | Method and apparatus for signal signature analysis for event detection in rotating machinery A method for analyzing vibration including: acquiring a vibration signal; isolating a vibration signal event in the acquired signal; determining a frequency of a damped sinusoid of the vibration signal event, wherein the damped sinusoid characterizes the vibration s... | 01/08/2008 |
| 7296472 | Method and apparatus for acoustic sensing of structures A method and system provides for acoustic sensing of structures, including a general shape and/or configuration of the structure and movement within the structure. Acoustic waves are used to characterize structures, including any activity within. As waves from a sou... | 11/20/2007 |
| 7290450 | Process diagnostics A diagnostic device for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flow... | 11/06/2007 |
| 7286674 | Method for designing a modal equalizer for a low frequency audible range especially for closely positioned modes The present invention relates to a method for designing a modal equalizer (5) for a low frequency audible range, typically for frequencies below 200 Hz for a predetermined space (1) (listening room) and location (2) (location in the room) therei... | 10/23/2007 |
| 7278305 | Apparatus for detecting hunting and angle of attack of a rail vehicle wheelset An apparatus and method for estimating the angle of attack of wheels, wheelsets, trucks and railway vehicles traveling over a track employing a wayside system having a plurality of sensors, adjacent to the rails of the track, for detecting the passing of each wheels... | 10/09/2007 |
| 7280950 | Locomotive diesel engine turbocharger and turbine stage constructed with turbine blade vibration suppression methodology A method for fabrication of a locomotive diesel engine turbocharger turbine stage so as to avoid harmonic vibration in the turbine blades when the engine is operated at pre-selected throttle settings. Upon determining throttle settings for the engine and modeling of... | 10/09/2007 |
| 7275439 | Parametric ultrasound imaging using angular compounding Parametric ultrasonic measurements which characterize the structure of tissue, using information from an ultrasonic signal beyond amplitude information, are obtained by combining multiple ultrasonic signals acquired at different angles, thereby reducing the variance... | 10/02/2007 |
| 7272531 | Aggregation of asset use indices within a process plant A method of monitoring an entity within a process plant wherein the entity includes a plurality of lower level entities, includes acquiring a plurality of use indices, acquiring a plurality of weighting values, and creating an aggregate use index from a combination ... | 09/18/2007 |
| 7263886 | Apparatus for and methods of stress testing metal components A tuning device (23) and an apparatus that incorporates the tuning device (23) for use in testing the integrity of a railway line (30) to obtain an improved test signal, the tuning device (23) including an elongate member (23) adap... | 09/04/2007 |
| 7254518 | Pressure transmitter with diagnostics In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element and/or an impulse line which connects to a pressure sensor. A difference circuit coupled to the pressure sensor has a difference output which represents the sens... | 08/07/2007 |
| 7248958 | Road surface state estimating apparatus, road surface friction state estimating apparatus, road surface state physical quantity calculating apparatus, and road surface state announcing apparatus A tire-generated sound detection sensor detects a tire-generated sound that is generated from a tire while the vehicle is running. A wheel rotation sensor detects a wheel rotation speed. A preprocessor calculates feature quantities corresponding to a road surface st... | 07/24/2007 |
| 7221988 | Creation and display of indices within a process plant A process control system uses an asset utilization expert to collect data or information pertaining to the assets of a process plant from various sources or functional areas of the plant including, for example, the process control functional areas, the maintenance f... | 05/22/2007 |
| 7219031 | Rumble strip responsive systems: discrimination of types of rumble strips There are basically two types of rumble strips: shoulder/center rumble strips and in-lane rumble strips. In an embodiment of the invention, there is a device that automatically identifies the type of rumble strip with which a vehicle tire is in contact with. The dev... | 05/15/2007 |
| 7204146 | Device and method for measuring thickness A device for measuring thickness of an object has a vibration generator for generating vibrations in the object, a vibration detector for detecting vibrations generated in the object by the vibration generator and a frequency analyzer for calculating resonance frequ... | 04/17/2007 |
| 7206646 | Method and apparatus for performing a function in a plant using process performance monitoring with process equipment monitoring and control A process control system uses a data collection and distribution system and an asset utilization suite to collect data or information pertaining to the assets of a process plant from various sources or functional areas of the plant including, for example, the proces... | 04/17/2007 |
| 7206719 | Diagnostic method for predicting maintenance requirements in rotating equipment This invention is a method to determine the condition of rotating equipment, namely drive spindles, to enable the timely maintenance or replacement of same. The method uses an electrical signal from a vibration sensor mounted on part of the drive train to measure th... | 04/17/2007 |
| 7203579 | Method and apparatus for estimating road surface state and tire running state, ABS and vehicle control using the same The frequency of an information signal indicative of a-vibration of a wheel detected by an acceleration sensor mounted to a wheel; or a change in the pressure of a gas in a tire detected by a pressure sensor installed in the tire, is analyzed. The band value of the ... | 04/10/2007 |
| 7200519 | Analysis system for analyzing the condition of a machine A system for analyzing the condition of a machine having a rotating shaft and a machine body with a measuring point includes a client part communicating with a supplier part computer via a communications network. The client part includes a sensor attachable at the m... | 04/03/2007 |
| 7188039 | Damped frequency response apparatus, systems, and methods Apparatus, systems, and methods are disclosed to solve an equation associated with a structure of the form {−ω2MR+iωBR+[(1+iγ)KR+i(K4R)]}Y=FR, wherein ω is a time-harmonic excitation frequency, ... | 03/06/2007 |
| 7174786 | Quality testing process A process is performed for testing the quality of a unit such as an electromotor, which has at least one mobile part, which is mobile within a given frequency range with varying frequencies and is capable of exciting the unit to oscillate. In the method, a frequency... | 02/13/2007 |
| 7167814 | Analysis system for analyzing the condition of a machine An apparatus for analyzing the condition of a machine, comprising: at least one input for receiving measurement data from a sensor for surveying a measuring point of the machine; data processing means for processing condition data dependent on said measurement data;... | 01/23/2007 |
| 7151898 | Deterministic first and second order polarization mode dispersion compensator A polarization mode dispersion (PMD) feedforward compensator compensates first and second order PMD. An optical signal is provided to a PMD detector that senses first and second order PMD in the optical signal and produces control signals for the PMD compensator. Th... | 12/19/2006 |
| 7134334 | Integrated fastener and motion detector A motion detector capable of sensing motion of an object includes a motion sensor secured to one of a plurality of surfaces of a fastener. The fastener is directly coupleable with the object. ... | 11/14/2006 |
| 7131238 | Method of testing seismic braces Braces for bracing objects in structures against forces due to earthquakes are tested by subjecting components of the braces for attaching the braces to the object or structure to cyclic loading of approximately 15 cycles. The cyclic forces are applied to different ... | 11/07/2006 |
| 7131332 | Vibroguard for machine elements A measuring system for structure-born noise measurement of machine elements in machine housings. The measuring system is fixed to the machine housing via a lubrication hold opening. A mounting pin with a continuous bore hole. A housing receives a printed circuit boa... | 11/07/2006 |
| 7124637 | Determining amplitude limits for vibration spectra A method for determining vibration amplitude limits of a mechanical device. The method comprises identifying a mechanical device and a frequency range for a spectrum to be analyzed, retrieving vibration spectra comprising individual spectrum for the mechanical devic... | 10/24/2006 |
| 7114394 | Vibration test system and method for structures A vibration test system for structures comprises a vibration exciter that vibrates a real model portion, a load meter that measures a load, and a computer that receives a numerical model representing a numerical model portion. The computer includes a block that calc... | 10/03/2006 |
| 7102794 | Method for engraving printing cylinders In a method and apparatus for engraving printing cylinders in an electronic engraving machine, an engraving control signal is formed from an image signal, which represents the tonal values of the cups to be engraved, and from a raster signal for generating a printin... | 09/05/2006 |
| 7102795 | Method for engraving printing cylinders In a method and apparatus for engraving printing cylinders in an electronic engraving machine, an engraving control signal is formed from an image signal that represents tonal values of cups to be engraved and from a periodic raster signal for generating a printing ... | 09/05/2006 |
| 7093492 | Configurable vibration sensor A configurable vibration sensor having a sensor circuit, an analog-to-digital converter and a processor is provided. The sensor circuit employs a vibration sensing element and a variable bandwidth filter controllable by the processor. In addition to the variable ban... | 08/22/2006 |
| 7085610 | Root cause diagnostics An industrial process diagnostic apparatus is provided which can identify a source, or “root cause”, of an aberration in an industrial process. A plurality of process configuration models are provided which each represent a physical (or actual) implementation of... | 08/01/2006 |