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WO/2011/089365 |
The invention relates to a method for measuring a modulated pseudo-siren generated in a narrow range of frequencies by a rotating member rotated by an internal combustion engine, characterised in that said method comprises: measuring a b...
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WO/2011/089365 |
The invention relates to a method for measuring a modulated pseudo-siren generated in a narrow range of frequencies by a rotating member rotated by an internal combustion engine, characterised in that said method comprises: measuring a b...
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WO/2011/089409 |
An arrangement for detecting toilet flushing by utilizing an acoustically-based motion detector in a simple amplifier circuit. The detector is m contact with the toilet bowl, which acts as a resonant system. Upon detection of such flushi...
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WO/2011/087440 |
A method of operating an apparatus for analysing the condition of a machine having a part rotating with a speed of rotation (fROT ), comprising the steps of: receiving a first digital signal (SRED, SMD, SENV) dependent on mechanical vibr...
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WO/2011/085737 |
A condition monitoring system receives vibration data from one or more sensors that are attached to a machine having cyclical components, such as a gearbox. Samples (431, 432, 433, 434 435, 436, 437, 438) of the vibration data are time s...
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WO/2011/087355 |
A system is provided for vehicle audit trail, where the vehicle audit trail system is fully automated to track the movements of the vehicle at any given time.
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WO/2011/087355 |
A system is provided for vehicle audit trail, where the vehicle audit trail system is fully automated to track the movements of the vehicle at any given time.
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WO/2011/083239 |
Said sound wave detection device comprises a piezoelectric transducer (18) that is designed so as to provide a detection signal. Said device also comprises an acoustic resonator (12) that has a resonance frequency and comprises a resonat...
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WO/2011/080466 |
The invention relates to a clamp (10) which is used mainly in a vibroacoustic diagnosis tool during an automobile maintenance or after-sales assistance operation, including two hinged arms (11, 12), each comprising a jaw (13, 14) at one ...
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WO/2011/081085 |
An effective-value calculation unit (120) calculates the effective value of an oscillating waveform of a bearing, the oscillating waveform being measured by using an oscillation sensor (70). An envelope processor (140) generates an envel...
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WO/2011/077713 |
Disclosed is an atomic reactor vibration monitoring device (15) comprising: an ultrasonic wave transmission means (3a) which is installed on the outside surface of an atomic reactor pressure vessel (1) and transmits ultrasonic pulses to ...
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WO/2011/076850 |
The spatial resolution of a fiber optical Distributed Acoustic Sensing (DAS) assembly is enhanced by: - arranging an optical DAS fiber (1) with a series of contiguous channels (C1-C14) that are sensitive to vibration in a U-shaped loop (...
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WO/2011/069964 |
An acoustic transducer assembly is disclosed. It comprises a layer of support material (2). An electric circuit (3) is integrated with the layer of support material. A plurality of transducers (4) are mounted on the layer of support mate...
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WO/2011/069190 |
A system for storing and monitoring samples in a temperature-controlled storage environment, including one or more containers each housing one of the samples; a machine readable tag associated with each container, wherein each tag includ...
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WO/2011/068427 |
The invention relates to a machine for examination of heart of turbo compressor, in which in housing (P) is placed working board (10) and on it, by springs (91), oscillation board (9) on which by tool (8) is fixed heart (34) of turbo com...
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WO/2011/064490 |
The invention relates to a monitoring method which includes: a step (E10) of obtaining an acceleration vibration signal from a sensor located on a stationary component of the turbine engine, said vibration signal being characterised by a...
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WO/2011/062866 |
A method for classifying an unknown part includes acquiring a broadband frequency response for a plurality of parts in a training set of parts, the training set of parts including a plurality of non-flawed parts and a plurality of flawed...
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WO/2011/062493 |
A method for determining the acoustic absorption coefficient and/or the transmission coefficient at a chosen position in a space in which a certain sound field prevails as a result of the operation of a sound-emitting source.
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WO/2011/058314 |
Fibre optic cables with improved performance for use in distributed sensing, for instance in distributed acoustic sensors, are disclosed. In one embodiment a fibre optic cable (210) comprises a core (208) and cladding (206) disposed with...
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WO/2011/058313 |
Techniques for determining lateral offset of the source of an acoustic disturbance in a distributed acoustic fibre optic sensor are described. The sensor comprises an optical source (112) for interrogating an optical fibre (104) and a de...
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WO/2011/058313 |
Techniques for determining lateral offset of the source of an acoustic disturbance in a distributed acoustic fibre optic sensor are described. The sensor comprises an optical source (112) for interrogating an optical fibre (104) and a de...
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WO/2011/058899 |
Disclosed is a device for measuring sound source distribution in three-dimensional space, wherein a two-dimensional laser sheet (Ls) is directed within an x-y plane onto tracer particles contained in a steady flow flowing around a body (...
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WO/2011/055286 |
There is provided an apparatus for measuring levels of a specified gas in exhaled breath, the apparatus comprising a photoacoustic sensor for providing a measurement representative of the level of the specified gas in the exhaled air, wh...
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WO/2011/051663 |
There is described a method and apparatus for processing light pulses returned from an optical sensor, wherein the light pulses are applied to two interferometer arrangements, a first interferometer arranged simply to superimpose two pul...
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WO/2011/051874 |
A method of assessing the integrity of a rock mass, the method including receiving a thermal assessment of the integrity of a rock mass, receiving an acoustic assessment of the integrity of a rock mass and correlating the thermal- and ac...
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WO/2011/051569 |
System for detecting heartbeats, which system comprises sensors and a central unit connected to the sensors. The sensors are planar sensors (102, 201, 301) to be placed below the tyres (104) of a vehicle. The central unit (106) of the sy...
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WO/2011/050401 |
A noise induced hearing loss management system and method enables an individual's exposure to noise to be measured, logged and displayed. Sound data can be collected by means of noise dosimeters preferably attached to hearing protection ...
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WO/2011/048373 |
Distributed acoustic, vibration, density and/or strain sensing is utilized for downhole monitoring. A method of tracking fluid movement along a wellbore of a well includes: detecting vibration, density, strain (static and/or dynamic) and...
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WO/2011/048373 |
Distributed acoustic, vibration, density and/or strain sensing is utilized for downhole monitoring. A method of tracking fluid movement along a wellbore of a well includes: detecting vibration, density, strain (static and/or dynamic) and...
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WO/2011/045525 |
The invention relates to a method for estimating the acoustic pressure of a fluid generated by sound waves, including the following steps: seeding (40) the fluid with particles; measuring (42) at least one reference signal correlated wit...
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WO/2011/045525 |
The invention relates to a method for estimating the acoustic pressure of a fluid generated by sound waves, including the following steps: seeding (40) the fluid with particles; measuring (42) at least one reference signal correlated wit...
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WO/2011/046268 |
Disclosed are a cooked state monitoring system and method. A cooked state monitoring system and method according to the present invention, for monitoring the cooked state of food, include a vibration sensing unit, a cooking completed det...
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WO/2011/045499 |
The invention relates to a method for monitoring, predicting, and reducing the acoustic level of a plurality of sources (14) located in a predetermined space including at least one noise-transmitting source, in particular a vessel, in an...
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WO/2011/044619 |
A modalmetric fibre sensor comprises a multimode sensor fibre (26) and a light source (14) for launching light into the sensor fibre to produce a multimode speckle pattern at an end of the sensor fibre. A single mode fibre (22) receives ...
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WO/2011/042312 |
A method of resolving vibration behaviour of a rotor assembly (12) having a plurality of rotor blades (13). The method comprises generating a computational model of the rotor by discretization of the rotor geometry and assigning paramete...
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WO/2011/039501 |
A method of distributed acoustic sensing (DAS) whereby the derivative or rate of change of a signal backscatted from a fibre is measured. The change, or derivative of the phase measured in this way has a much smaller amplitude than the s...
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WO/2011/038989 |
The invention relates to a method for analyzing amplitude modulated broadband noises emitted by bodies, in particular operating noises emitted by propeller driven vehicles, which are transferred as acoustic signals after a pre-processing...
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WO/2011/039116 |
The invention relates to a device for a spatially-resolved measurement of mechanical parameters, in particular mechanical vibrations, comprising at least one optical fiber (3) for measuring at least one mechanical parameter with spatial ...
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WO/2011/036815 |
A monitoring device is provided with: a sound collection unit which collects environmental sounds within a measurement space wherein one or more devices exist; an analysis unit which samples and frequency-analyzes the environmental sound...
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WO/2011/031142 |
The invention provides an optical device, a method for the preparation thereof, and a device. The optical device, based on a ferrule top, is adapted for use on a distal end of an optical fiber, comprising a body provided with at least on...
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WO/2011/029926 |
The invention relates to a method for determining cracks in turbine blades (3), said determination taking place during operation. According to the invention, characteristic frequencies of the blades are first determined theoretically usi...
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WO/2011/028220 |
An apparatus and a method monitor condition of a temperature measurement point in an industrial process system by sensing vibration frequency of a thermowell positioned in a process fluid flow passage and providing a diagnostic output ba...
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WO/2011/027013 |
The invention relates to methods for measuring the load of fixing elements (31) used to join parts (11, 13) of a machine in operation, and especially in screw connections of flanges of segments of the tower of an aerogenerator and in scr...
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WO/2011/028220 |
An apparatus and a method monitor condition of a temperature measurement point in an industrial process system by sensing vibration frequency of a thermowell positioned in a process fluid flow passage and providing a diagnostic output ba...
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WO/2011/023596 |
The present invention provides a method and system for monitoring vibrations in a wind turbine generator, and in the method a rule base for the range of vibration characteristic values is established on the basis of a large quantity of h...
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WO/2011/022236 |
Systems and methods for aircraft cabin noise analysis are disclosed. In one embodiment, a method includes receiving a first request for an aircraft cabin noise analysis, wherein the request comprises a plurality of flight parameters asso...
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WO/2011/018289 |
The invention relates to a method for the early detection of damage in a motor vehicle transmission, comprising at least one acceleration sensor, by means of which mechanical vibrations in the motor vehicle transmission are captured (S1)...
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WO/2011/018216 |
The invention relates to an assembly comprising a data processing system (1) having a computer (8) and at least one device (2) having a control unit (9), wherein the device (2) comprises moving parts (3) that are hinged to attachment poi...
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WO/2011/017208 |
An acoustic velocity microphone or directional acoustic sensor is disclosed that includes a sensor frame structure, a support means, and a buoyant object. The buoyant object is suspended in the sensor frame structure using the support me...
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WO/2011/017014 |
A geophone including a plurality of ferromagnetic masses (e.g., magnets) disposed to oscillate on one or more compliant elements (e.g., springs) in a manner that produces a steep flux gradient at one or more conductive coils is disclosed...
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