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7606673 |
Rotating bearing analysis and monitoring system
A method of analyzing vibrations of a rolling element bearing installed in a rotating machine includes accessing vibration data corresponding to the bearing to be analyzed, determining a degraded...
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7603904 |
Method and apparatus for assessing or predicting the characteristics of wood
A method and apparatus for determining a characteristic, such as the stiffness, of a portion of a wood specimen characterised by the steps of a) producing an acoustic signal in the wood specimen...
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7599805 |
Systems and methods for predicting supersonic acoustic signatures
A system for determining an acoustic signature of a device is disclosed that includes a computer processor operable to determine strength and location of shock wave sound signals based on...
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7599804 |
Method for detecting structure-borne noise events in a roller bearing
A method for detecting structure-borne noise events in a roller bearing, wherein a measuring signal M of a pressure or dilatation sensor arranged on a roller bearing is fed to a frequency filter...
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7596458 |
Tracking vibrations in a pipeline network
Tracking vibrations on a pipeline network includes installing multiple vibration recorders on the pipeline network, with each recorder including a sensor, a timer, a processor, and a digital...
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7587299 |
Anomaly diagnosis apparatus and method of machine installation
An anomaly diagnosis apparatus for analyzing sound or vibration data produced by a machine installation and diagnosing the presence or absence of an anomaly in a sliding member in the machine...
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7583200 |
Method and system for detecting and measuring the disturbances in terms of frequency of the rate of rotation of a rotor
A method and system for detecting the variations of speed (R) of a rotor. Signals are measured representative of the march-past of the teeth of a measurement device secured to the rotor for a...
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7580802 |
Method of determining condition of a turbine blade, and utilizing the collected information for estimation of the lifetime of the blade
A method for determining the condition of a turbine blade ( 2, 4 ) in a compressor and utilizing the collected information in an estimation of the lifetime of the turbine blade ( 2, 4 ), whereby a...
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7574333 |
Apparatus and method for modeling relationships between signals
A projection is associated with a first signal and a second signal. The second signal includes a first portion associated with the first signal and a second portion not associated with the first...
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7567877 |
System and method for computing the frequency of a low frequency wave
The present invention provides a system for computing the frequency of a low frequency wave. The system includes: a wave producer ( 3 ) configured for sending out a first wave with a high...
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7559240 |
Method and device for assessing residual service life of rolling bearing
Degradation of the lubricant due to contamination of the lubricant with wear particles or moisture, which greatly affects the service life of rolling bearings, can be detected in a cost-effective...
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7546211 |
Condition detection apparatus, condition detection method, condition detection program, information recording medium therefor, and condition display apparatus, condition display method, condition display program, information recording medium therefor
A condition detection apparatus comprising an AE sensor 1 that detects AE waves, which elastically-occur when a plurality of balls included in an LM system self-rotate and revolve within a...
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7542860 |
Method and device for detecting the location of a pulse-type mechanical effect on a system part
A method and device detect a position of a pulsed mechanical effect on a plant component. An operating noise in the plant component is continuously recorded by sensors which are arranged on the...
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7536265 |
Signal analysis method for vibratory interferometry
The present invention relates to a signal analysis method for vibratory interferometry to identify the vibratory characteristics of an object under test. A vibratory stroboscopic interferometric...
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7525050 |
Interference removal in pointing device locating systems
An apparatus and a method for determining the location of a pointing device in the vicinity of a set of receivers able to receive one or more locating signals transmitted through a medium. The...
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7512463 |
Reducing vibration using QR decomposition and unconstrained optimization for a multi-rotor aircraft
Determining adjustments to decrease vibrations caused by rotating blades from a plurality of rotors includes determining a first plurality of adjustment normalization values for a plurality of...
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7508614 |
Data storage drive having movement sensors
A drive for data storage includes a first component and a second component movable with respect to the first component. The drive also includes a first sensor and a second sensor. The first sensor...
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7505852 |
Probabilistic stress wave analysis system and method
A statistical process, and system for implementing the process, is described for the analysis of stress waves generated in operating machinery or equipment. This technique is called Probabilistic...
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7500299 |
Method for introducing a deliberate mismatch on a turbomachine bladed wheel and bladed wheel with a deliberate mismatch
A method to introduce a deliberate mismatch into a turbomachine bladed wheel so as to reduce vibration amplitudes of the wheel in forced response. The method includes a step of determining an...
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7496457 |
Load body state judging device, vehicle seat and computer program
A load body state is judged from time series data of an emphasis displacement inclination obtained by collecting displacement signal data of the load body state using a displacement signal...
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7496456 |
3D ultrasonographic device
A three-dimensional ultrasonic inspection apparatus includes: a sensing device for ultrasonic inspection including an ultrasonic sensor as a transducer, in which a plurality of piezoelectric...
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7493238 |
Abnormal noise correction verification apparatus
An abnormal noise correction verification apparatus is provided that can easily verify the effectiveness a corrective action with respect to an abnormal noise being generated. The apparatus has at...
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7493220 |
Method and system for vibration signal processing
The present invention relates to a vibration signal processing method and system that can be used to account for situations where impact or impulse events are hidden in a normal vibration reading...
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7489987 |
Control of an active vibration isolation system
Control of an active vibration isolation system with a digital controller, which includes an FPGA system ( 5 ) as the control unit. The FPGA system ( 5 ) is made up of freely programmable gate...
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7474970 |
Information processing apparatus and head retraction processing method of built-in hard disk drive thereof
An information processing apparatus is disclosed. The information processing apparatus includes a hard disk drive, an acceleration sensor, a determination section, and a threshold value setup...
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7468661 |
System and method for monitoring and controlling remote devices
The present invention is generally directed to a system for monitoring a variety of environmental and/or other conditions within a defined remotely located region. In accordance with one aspect of...
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7444245 |
Field device for determining and/or monitoring a process variable
Field device for determining and/or monitoring at least one process variable of a medium in a container. The field device includes: at least one mechanically oscillatable unit connected with the...
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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...
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7426852 |
Submersible meter for measuring a parameter of gas hold-up of a fluid
A submersible meter is provided that measures the speed of sound propagating in an aerated fluid to determine any one of a plurality of parameters of the fluid, such as the gas holdup of the fluid...
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7421349 |
Bearing fault signature detection
A device, and method, detects the presence of developing faults in rolling element bearings. Detection is accomplished by measuring the vibration of the apparatus in which the bearing is operating...
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7421343 |
Systems and methods for reducing vibration-induced errors in inertial sensors
Systems and methods for reducing vibration-induced bias errors in inertial sensors are disclosed. A system for reducing bias errors in an inertial sensor operating within an environment may include...
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7418355 |
Method and system for monitoring a piston rod
A method for monitoring a condition of a piston rod of a reciprocating compressor is provided. The piston rod having a length defined between a piston end and a crosshead end. The method includes...
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7415365 |
Structure-borne sound sensor unit
A structure-borne sound sensor unit, in particular for an agricultural machine, includes a signal converter, which converts a mechanical sensor signal into an electrical sensor signal, and...
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7415363 |
High resolution torque measurement on a rotating shaft with movement compensation
An apparatus for determining the torque imposed on a rotatable shaft. The shaft has at least four paired probes, paired horizontal probes and paired vertical probes. The horizontal probes are...
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7412899 |
MEMS-based monitoring
A solution for monitoring a property of an object and/or an area using a Micro-ElectroMechanical Systems (MEMS)-based monitoring device is provided. In an embodiment of the invention, the...
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7409302 |
Method and apparatus for vibration detection and vibration analysis, and lithographic apparatus equipped with such an apparatus
The invention provides a method for determining vibration-related information by projecting an aerial image at an image position in a projection plane, mapping an intensity of the aerial image into...
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7383136 |
Fundamental mistuning model for determining system properties and predicting vibratory response of bladed disks
A reduced order model called the Fundamental Mistuning Model (FMM) accurately predicts vibratory response of a bladed disk system. The FMM software may describe the normal modes and natural...
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7376523 |
Contact sensitive device
A contact sensitive device includes a member capable of supporting bending waves and a plurality of sensors mounted on the member for measuring bending wave vibration in the member. The sensors...
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7373262 |
Method for implementing vibration suppression system under control from a remote site
A method of implementing vibration suppression at equipment residing at a local site includes the steps of transmitting a prompt from a remote site to the local site, automatically sensing...
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7353088 |
System and method for detecting presence of a human in a vehicle
A system for detecting the presence of a human in a vehicle is provided. The system includes a vibration sensor that is configured to detect vibrations of the vehicle, and to output signals related...
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7346461 |
System and method of analyzing vibrations and identifying failure signatures in the vibrations
An apparatus, computer program product and method of analyzing structures. Intrinsic Mode Functions (IMFs) are extracted from the data and the most energetic IMF is selected. A spline is fit to the...
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7340354 |
Method for detection of a stable installation of a system having a rotating device therein
In a method for detection of a stable installation of a system that has a rotation device mounted to rotate around a system axis and an arrangement for detection of measurement values indicative of...
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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...
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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...
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7308368 |
Method and apparatus for vibration detection, method and apparatus for vibration analysis, lithographic apparatus, device manufacturing method, and computer program
A method is provided for determining information relating to vibration. The method includes projecting an aerial image at an image position in a projection plane; mapping an intensity of the aerial...
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7299680 |
Knocking detection
An in-cylinder pressure sensor for outputting a signal corresponding to an internal cylinder pressure of an engine is provided. A first signal and a second signal are extracted from the output...
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7299141 |
System and method for controlling vibration
Disclosed are systems and methods for reducing vibration in a device mounting structure, the method including determining when the vibration level of the device mounting structure exceeds a first...
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7289919 |
Cyclic time averaging for machine monitoring
A cyclic time averaging method is directed at processing time-domain vibration data of the machine to produce an averaged time waveform over a selected cyclic time period. It is not necessary to...
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7283923 |
Method of speed measure on turbo superchargers of internal combustion engines by means of vibrations analysis and equipment to perform it
A method of determining speed of rotation of a motor is provided. The method involves collecting samples with a measuring sensor at a sampling frequency, set on the basis of mechanical vibration of...
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7283914 |
System and method for vibration monitoring
The present invention is directed to a system and method of monitoring assets of an enterprise, wherein the assets perform a process and include machines subject to vibration. The system includes a...
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