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WO/2020/230270A1 |
A vibration sensor (100, 100a) comprises: a sensor shell (110) that vibrates together with a subject (200) and in synchronization with the vibration of the subject (200); a piezoelectric substrate (120) that has, disposed on one surface,...
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WO/2020/229531A1 |
System for photoacoustic spectroscopy, the system comprising: ° a light system comprising a light source, wherein the light system is configured to generate a light beam, to modulate the light beam at a modulation frequency, and to dire...
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WO/2020/232259A1 |
A sensor, such as a piezoelectric MEMS vibration sensor, includes a frame, a beam array comprising a plurality of beams, and a plurality of masses. Each beam of the plurality of beams has an anchored end and an unanchored end, with each ...
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WO/2020/231884A1 |
Processing sound in an enhanced reality environment can include generating, based on an image of a physical environment, an acoustic model of the physical environment. Audio signals captured by a microphone array, can capture a sound in ...
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WO/2020/228547A1 |
A sound velocity profile inversion method based on an inverted multi-beam echometer. Said method comprises the following steps: mounting, in an inverted manner, the multi-beam echometer on an underwater submerged buoy or fixing same to a...
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WO/2020/229058A1 |
The invention concerns a method for configuring a digital filter for attenuating a torsion mode of a power transmission line of an aircraft turbine engine (1), the mode being associated with a frequency F_T falling within a confidence in...
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WO/2020/231728A1 |
This invention relates to apparatus and method for measurement and monitoring of physical properties of materials, such as liquids, and more particularly to acoustic instruments, methods, and systems that automatically measure air conten...
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WO/2020/229095A1 |
The invention relates to a method for analysing the soil properties and/or the degree of hardness of the soil (6) using a tool (2) of a construction machine (1). The tool (2) is abruptly placed on the soil (6) in such a manner that the s...
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WO/2020/223769A1 |
A bolt tension monitor for estimating tension in an elongate fastening member, said monitor comprising: a transducer for converting a vibration of the elongate fastening member into an electrical signal; a frequency detection assembly ar...
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WO/2020/226331A1 |
The present invention relates to a method for estimating the length of a roller chain by using the fricative sound generated by the friction between a roller and the groove of a sprocket when the roller chain is rotated by engaging with ...
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WO/2020/227244A1 |
An ultrasonic sensor (300) includes a substrate (304), a platen (306) and an acoustic stack (302) disposed between the substrate and the platen, including at least one piezoelectric layer. The ultrasonic transducer exhibits a signal-to-n...
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WO/2020/226002A1 |
This abnormal sound determination device comprises: a memory for storing sound data for a predetermined period of sound emitted from a target device; and a processor for determining whether a sound corresponding to sound data for one fra...
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WO/2020/217347A1 |
The present invention comprises: a combination device (A) in which a sensor (A) and a vibration device (A) are integrated; and a combination device (B) in which a sensor (B) and a vibration device (B) are integrated. On the basis of the ...
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WO/2020/216953A1 |
The present disclosure generally relates to systems and methods for imaging and sensing vibrations of an object. In one implementation, a system is provided for detecting vibrations that comprises a sensor with a plurality of pixels, eac...
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WO/2020/217160A1 |
A method for determining tree infestation includes placing (1700) an optical fiber (220) around a trunk of a tree; recording (1702) with a distributed acoustic sensor (DAS) box (201) a Rayleigh signal reflected from the tree, along the o...
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WO/2020/218938A1 |
The present technical solution (utility model) relates to the field of the industrial measurement of vibrations for the purpose of monitoring and diagnosing the technical condition of rotary machines and also for analyzing the vibration ...
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WO/2020/218543A1 |
The present invention provides an abnormality diagnostic system for diagnosing an abnormality related to control shafts in equipment into which are built motors and a plurality of control shafts having output parts driven by the motors, ...
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WO/2020/215116A1 |
Methods of processing a data signal obtained from a sensor sensing a dynamic signal to detect a structural anomaly event are disclosed. In one embodiment, a method includes obtaining signal components attributable to fluid flow at a loca...
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WO/2020/216989A1 |
Method for manufacturing a pipe (1) for a pipeline, wherein at least part of the pipe is manufactured by additive manufacturing process, wherein at least one space for an ultrasonic transducer (2, 3) is formed inside the material of the ...
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WO/2020/215471A1 |
Disclosed in the present invention are an optical phase demodulation method and system based on polarization-division receiving. The method comprises: performing I/Q demodulation on optical signals collected by two sensing points, and pe...
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WO/2020/214146A1 |
A system includes a wireless receiver and sensor module and a transponder. The wireless receiver and sensor module monitors a condition of a machine, and generate data that quantifies a machine condition. The transponder connects with th...
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WO/2020/214108A1 |
The invention relates to fiber optic MEMS microphone that features electrically deflectable MEMS membrane via conversion of optical energy propagating in the optical fiber to electrical energy with photodiode chip.
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WO/2020/213055A1 |
A vibration sensor (100) comprises: a piezoelectric substrate (1); a first electrode (2) and a second electrode (3) provided to the piezoelectric substrate (1); an amplifier (4) which is electrically connected between the first electrode...
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WO/2020/214470A1 |
The present disclosure relates to a novel method to monitor rotor blade vibration using unsteady casing pressure. The novel method applies a non-intrusive blade vibration monitoring technique by using an array of unsteady pressure sensor...
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WO/2020/208893A1 |
This numerical control device (1) is characterized by being provided with: a drive command unit (15) which gives an operation command to a main shaft (101) and a transmission shaft (102) of a work machine (100); a sensor signal processin...
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WO/2020/207891A1 |
The invention relates to a hydrophone (20) comprising a tube (22) having a first portion (22a) and a second portion (22b), the first portion and the second portion each having an internal electrode, the second portion (22b) having an opp...
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WO/2020/209366A1 |
[Problem] To enable constant monitoring of a vibration state of a vibration unit and prompt detection of mechanical failure, failure in a vibrating electric motor, or the like, and to prevent any decrease in a purification function throu...
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WO/2020/208685A1 |
This numerical control device (1) is characterized by comprising: a drive command unit (15) for issuing operation commands for a main shaft (101) and feed shaft (102) of a machine tool (100); a sensor signal processing unit (11) for gene...
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WO/2020/203332A1 |
The purpose of the present invention is to provide a phase measurement method and a signal processing device capable of reducing the influence of noise of a measuring instrument without increasing the peak intensity of incident light pul...
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WO/2020/201435A1 |
A sensor structure (1) for an acoustical pressure sensor. The structure comprises an optical waveguide closed-loop resonator (2) and a plurality (3) of sensor elements (3a-e), wherein the individual sensor elements (3a-e) of the pluralit...
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WO/2020/202654A1 |
A monitoring system according to the present disclosure is provided with: an optical fiber (10) installed in the ground or on the seabed; an optical fiber sensing unit (21) which receives an optical signal from the optical fiber (10), an...
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WO/2020/195536A1 |
Provided are an anomaly assessment method, and a system for the same, for assessing structural anomalies by inputting vibration data, measured in a structure, into a state assessment model. The system according to the present invention c...
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WO/2020/194539A1 |
This invention comprises: an acquisition means for chronologically acquiring the displacement amounts produced in a measurement location of a structure by the weight of vehicles traveling over the structure; a detection means for detecti...
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WO/2020/193373A1 |
An augmented reality-based acoustic analysis method includes identifying structural elements of a space and determining structural parameters of the structural elements and a structural parameter of the space. The method further includes...
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WO/2020/193962A1 |
An optical microphone assembly (2) comprises a micro-electromechanical system (MEMS) component (4), a semiconductor chip (6), and an outer housing including at least part of a non-MEMS supporting structure and defining an aperture (32). ...
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WO/2020/192982A1 |
The present invention relates to a method for detecting a loosened wheel bolt (104) on a wheel (100) of a vehicle, in which method the angular velocity of a hub (110) of the wheel (100) is evaluated. A wheel-periodic modulation (202) of ...
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WO/2020/195652A1 |
This information management system comprises a measurement device and an information terminal. From a first communication means, the measurement device transmits identification information identifying the measurement device and, at least...
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WO/2020/193105A1 |
The invention relates to a method for interferometric vibration measurement at a plurality of measurement points by means of a measuring laser beam, comprising the method steps of: A. generating the measuring laser beam having a waveleng...
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WO/2020/195653A1 |
The information management system according to the present invention is characterized in that: a measurement device comprising an output means that includes an oscillator capable of generating ultrasonic waves generates, from the oscilla...
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WO/2019/199398A9 |
An array (400) of micromachined ultrasonic transducers (MUTs) (402). The array (400) has first and second rows, the MUTs (402) in the first row being equally spaced by a horizontal pitch (430) in a horizontal direction (403), the MUTs (4...
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WO/2020/193325A1 |
The present invention relates to an apparatus for equipment monitoring. The apparatus comprises an input unit, a processing unit, and an output unit. The input unit is configured to provide the processing unit with a plurality of batches...
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WO/2020/190596A1 |
Techniques of measuring vibrations from an object surface using LIDAR includes grouping beams having similar vibration velocity values over a specified time window and replace outlier vibration velocity values with a vibration velocity v...
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WO/2020/188888A1 |
In the present invention, a light intensity acquisition unit acquires the intensity of output light resulting from the backscattering of probe light in an optical fiber. An OTDR waveform acquisition means sequentially acquires and stores...
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WO/2020/185682A1 |
The subject matter of this specification can be embodied in, among other things, a method for removing intermodal distortion that includes receiving a collection of distorted backscattered Rayleigh signals from a collection of modes of a...
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WO/2020/184396A1 |
The present invention is provided with: a light source which outputs test light; a sensor optical fiber to which the test light is input and through which the test light is propagated in a loss equal to or greater than 0.3 dB/m; and a li...
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WO/2020/182412A1 |
The present invention relates to a computer-implemented method of, a data processing system for and a computer program product for indicating machine failures as well as to a corresponding machine and a computer-implemented method of tra...
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WO/2020/181920A1 |
Provided is a signal processing method based on a distributed fiber-optic acoustic sensor; in said method, spatial position information of a signal source is obtained by means of pre-processing an acoustic field signal obtained by a sens...
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WO/2020/183730A1 |
The present invention provides a monitoring system comprising: a control device that receives sensing data from one or a plurality of sensors provided to a device including a power source, and that calculates one or a plurality of featur...
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WO/2020/179731A1 |
Provided is a vibration sensor which can be attached to a curved surface subjected to measurement. An organic piezoelectric element (20) has a first surface and a second surface on the side opposite to the first surface, the organic piez...
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WO/2020/179241A1 |
This structure diagnosis device 1 for diagnosing the state of a structure having low natural frequency variation comprises: a natural vibration extraction unit 2 for acquiring, from a plurality of sensors 21 provided on a structure 20, v...
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