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Matches 1 - 50 out of 24,142

Document Document Title
WO/2019/034206A1
The invention relates to a system comprising a first electroacoustic converter, which is connected to a query unit, and at least a second electroacoustic converter, which is connected to a resonator. The first electroacoustic converter a...  
WO/2019/029958A1
The invention relates to a method and a device for monitoring mechanical vibrations of a machine (2), the machine (2) having at least two sources of vibration, characterised in that noises in the surroundings of the machine (2) are recor...  
WO/2019/024342A1
A signal detection sensing structure, comprising: a first piezoelectric electret layer (1), a second piezoelectric electret layer (2), and a bonding layer (5) arranged between the first piezoelectric electret layer (1) and the second pie...  
WO/2019/026791A1
The present disclosure provides a vibration-sensitive module. The vibration-sensitive module includes an acceleration sensor, a vibration power generation unit, and a module control unit. The acceleration sensor detects acceleration with...  
WO/2019/026064A1
There are provided devices, systems and methods utilizing interferometric retro-reflection displacement/vibration meter. In particular, there are provided laser interferometer devices, systems and methods for measuring three-axis small a...  
WO/2019/027439A1
A method of monitoring a rotor blade (14) is provided. The method includes disposing a probe (22) including an optical sensor (25) within a mounting hole in a turbine casing (36) of a turbine engine. A (5) laser beam is them emitted by a...  
WO/2019/024450A1
A device fault detection method and apparatus, applied to a cloud server. The method comprises: obtaining, by a signal detector provided in a target device, first sampling data of a first vibration sound signal for the target device (S20...  
WO/2019/025300A1
The invention concerns a tank (1) of fluid (4) for a motor vehicle (3), comprising a body (5) arranged to receive the fluid (4) and a system (9) for measuring a parameter of the fluid (4) in the tank (1) from an acoustic wave. According ...  
WO/2019/026980A1
The present invention has: an acquisition means that acquires measurement data pertaining to periodic movement of a physical object that performs periodic movements; a determination means that determines a revision coefficient, which is ...  
WO/2019/025194A1
A method of manufacturing a test piece (300) for testing a rotor blade design (200) for a turbomachine, the test piece comprising: a plurality of monolithically-formed body portions. There is provided a main body portion (302) correspond...  
WO/2019/021991A1
Provided are an analyzing device and the like capable of suppressing erroneous determination. This analyzing device is provided with: a cross correlation calculating means for obtaining a cross correlation function with respect to vibrat...  
WO/2019/022852A1
A blade vibration monitor including a self-adjusting sensor gap mechanism is provided. The blade vibration monitor includes a probe configured to be disposed in a mounting hole within a turbine casing of a steam turbine. A proximity sens...  
WO/2019/021936A1
This sensor element comprises a first substrate, a detection unit disposed on the first substrate, and a second substrate that surrounds the first substrate and supports the first substrate. The second substrate is thicker than the first...  
WO/2019/020604A2
The device according to the invention consists of a support member (23) and at least one end element (24), both configured and arranged, relative to each other, such that they form a cavity of length (ΔL) axially limited by two walls, t...  
WO/2019/020825A1
The invention pertains to an apparatus for analyzing a mechanical vibratory response of a solid material sample, the apparatus comprising:an array of impactors arranged to impart an impact on respective well-defined points on the surface...  
WO/2019/022084A1
The present invention comprises: an optical fiber (1) disposed in a pipe (P) having a sewage flow path through which sewage (W) flows, the optical fiber (1) being disposed so as to extend axially in a portion of the sewage flow path posi...  
WO/2019/018894A1
A distributed optical detection system comprising: a broadband optical source; and a phase and amplitude receiver for measuring phases and amplitudes of distributed backscattered signals from a sensing medium. Methods of quantitatively s...  
WO/2019/015311A1
A vibration signal support vector machine-based GIL fault online monitoring system, wherein a monitoring device is mounted on an outer surface of a GIL channel, a vibration signal map produced by a pipe wall during actual circuit transmi...  
WO/2019/015454A1
The present invention relates to a buried electrical cable error-preventing excavation alert device, comprising an optical fiber vibration sensor having a pattern recognition function, a signal processing unit, a wireless communication u...  
WO/2019/018181A1
An ultrasonic system has a piezoelectric powered ultrasonic stack having a piezoelectric ultrasonic converter excited by an ultrasonic power supply. A control loop feedback controller determines in real time a true amplitude of mechanica...  
WO/2019/014721A1
The present invention relates to a system for distributed acoustic sensing in a marine environment surrounding a repeater along a fibre-optic submarine communications cable. The system comprises at least one distributed acoustic sensing ...  
WO/2019/015334A1
Disclosed are a micro-motion sensing device and a mattress, wherein an upper housing (10) and a lower housing (20) of the device are stacked opposite each other; a support body (30) supports between the upper housing (10) and the lower h...  
WO/2019/009507A1
Disclosed are a three-dimensional ultrasonic anemometer, a three-dimensional wind velocity measurement method, and a wind turbine, according to various embodiments. The three-dimensional ultrasonic anemometer includes: three pairs of ult...  
WO/2019/009374A1
The present invention addresses the problem of providing a vibration sensor which has low frequency dependence of the output. The present invention provides a vibration sensor 1 which is provided with a supporting body 2, an organic piez...  
WO/2019/006506A1
A defect monitoring method and system for monitoring the condition of a vibrating screen unit used to process particulate material, the screen unit having at least one screen deck surface defining an array of apertures to sort the partic...  
WO/2019/002327A1
A method of managing noise levels within an environment inhabited by one or more users, comprising: measuring noise levels within the environment using a set of one or more sound measurement devices; associating at a noise management uni...  
WO/2019/003108A1
Method for measuring the spectra of the radiating and oscillating acoustic intensity in any operating condition, minimizing the experimental error. Such method is based on the analysis of the acoustic impedance and on the spectrum of the...  
WO/2019/003692A1
A sensor device 1 comprises: a holder 30 that is provided with an insertion hole 33; a detection needle 21 having a base end that is inserted into the insertion hole 33, the portion inserted into the insertion hole 33 being narrower than...  
WO/2019/001773A1
A method of monitoring the usage of an internal combustion engine comprises performing an engine monitoring routine using a local monitoring device attached to an internal combustion engine. The engine monitoring routine includes generat...  
WO/2019/003504A1
Provided is a feature with which it is possible to suppress the erroneous determination of an earthquake from noise and the erroneous output of an interrupt signal in a seismic sensor. A seismic sensor provided with: an earthquake determ...  
WO/2019/000107A1
Methods, systems, and techniques for determining whether an acoustic event has occurred along a fluid conduit that has acoustic sensors positioned along its length. For each of the sensors, a processor is used to determine a linear relat...  
WO/2019/003505A1
Provided is a technique whereby erroneous determination of noise as an earthquake in a seismic sensor can be more reliably suppressed. A seismic sensor for operating in a power saving mode and a measurement mode having greater power cons...  
WO/2019/003699A1
This system 10 for specifying the cause of an abnormality in a device having a rotating member is characterized by comprising: acceleration sensors 22a, 22b, a pickup sensor 24, and a temperature sensor 26 for observing the state of a ro...  
WO/2018/232809A1
A rotational vibration test stand for an aeroengine blisk based on a laser vibrometer, comprising a base (1), an electric motor (16), a laser vibrometer (3), a main shaft (12), a housing (10), a blisk vibration test device, a blade vibra...  
WO/2018/234523A1
The invention relates to a method for detecting damage to a rotor of an aircraft, wherein the aircraft has actuators for actively reducing vibration, the method comprising the steps: determining actuator manipulated variables in a refere...  
WO/2018/236274A1
There is provided a holding arrangement (100, 200) for holding an acoustic transmitter (101) in place in relation to a container. The arrangement comprises: a body (102) comprising a cavity (104) for holding an acoustic transmitter, the ...  
WO/2018/234742A1
This application relates to methods and apparatus for distributed fibre optic sensing that can provide an indication of the absolute value of pressure acting on a sensing portion of a fibre optic cable. A sensor apparatus (600) has a fir...  
WO/2018/236001A1
A sensor device for measuring operation data of a machine according to an embodiment of the present invention comprises: a substrate having a sensor mounted thereon so as to measure specific operation data of the machine; a housing which...  
WO/2018/233278A1
An apparatus and method for simultaneous measurement of the three-dimensional vibration of a rotary shaft. The apparatus comprises a stripe sensor (6), an image acquisition module (3), image processing software, and a computer (1). The m...  
WO/2018/228755A1
A method of fault detection in a machine being configured to execute a plurality of events to provide a machine function is disclosed. Each event is associated with at least one start trigger and at least one subsequent signal of executi...  
WO/2018/230590A1
The present invention achieves a technology that enables continuous utilization of a sound pressure waveform signal from a hydrophone without any interruption. This hydrophone signal integration voltage conversion circuit 3 is provided w...  
WO/2018/228086A1
A safety monitoring system for field geological exploration. The monitoring system comprises: a vibration detector (10) for compressing a mineral to generate charges, so as to detect vibration, and a physiotherapy jacket (7) for carrying...  
WO/2018/230795A1
The present invention relates to a system and a method for diagnosing a contactor by using a sound sensor, which determines whether the contactor is malfunctioning, on the basis of a result of sensing mechanical transition sounds generat...  
WO/2018/228801A1
A system and method for verifying a connection between a first connector and a second connector. The system includes an audio transducer and an electronic processor. The electronic processor is communicatively coupled to the audio transd...  
WO/2018/223245A1
The invention relates to an optimiser for transfer funnels, characterised in that it comprises a monitoring and control system implemented in the transfer funnels, monitoring the operation and state of said devices, thus allowing control...  
WO/2018/221577A1
This blade vibration monitoring device comprises: a rotary machine that is provided with a rotation shaft that extends along an axis and a plurality of moving blades that have moving blade bodies that extend radially from the rotation sh...  
WO/2018/222541A1
A vibration sensing optical fiber cable is provided. The cable includes at least one optical fiber embedded in the cable jacket such that vibrations from the environment are transmitted into the cable jacket to the optical fiber. The cab...  
WO/2018/222535A1
A strain sensing optical fiber cable is provided. The cable includes at least one optical fiber embedded in the cable jacket such that vibrations from the environment are transmitted into the cable jacket to the optical fiber. The cable ...  
WO/2018/216708A1
This vibration sensor is provided with: a base plate having an upper surface including a central portion and an outer peripheral portion; a container portion which is positioned on the outer peripheral portion of the upper surface, and w...  
WO/2018/215417A1
The method according to the invention for determining at least one material property of a workpiece (2) arranged in a punching machine (1), in particular for determining workpiece material and/or workpiece thickness, comprises the follow...  

Matches 1 - 50 out of 24,142