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WO/2021/172024A1 |
A waveform of each predetermined series of vibrations included in a vibration waveform is referred to below as an "individual waveform (Wo)". An end determination unit (34) determines an end of each individual waveform (Wo), and thus rec...
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WO/2021/171656A1 |
A state evaluation system according to an embodiment has a sensor, a filter, a signal processing unit, and an evaluation unit. The sensor detects elastic waves generated from an industrial machine during operation thereof. The filter is ...
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WO/2021/166946A1 |
The purpose of the present invention is to provide a method of a practical level for performing sensor fusion of a plurality of vibration sensors such as a seismograph. In one example, the present invention aims to expand a dynamic range...
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WO/2021/168033A1 |
Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors (220) may receive from one or more stations (110, 120, 130) located along an underwater optical route (100), ...
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WO/2021/166128A1 |
In an abnormality estimation apparatus 10, a detection unit 11 detects, by using vibration information indicating vibration generated in a bridge, a vibration response when a vehicle 30 passes an extension and contraction device 23, and ...
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WO/2021/165700A1 |
A long range optical fiber sensor such as a distributed acoustic sensor has a sensing fiber located remotely from the interrogator, with a length of transport fiber path connecting the two. Because no sensing is performed on the transpor...
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WO/2021/165965A1 |
A device for coupling a sensor to a fiber optic cable including at least one optical fiber, the device may include an activation unit couplable to a known coupling location along the fiber optic cable and configured to: receive an analog...
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WO/2021/165712A1 |
This image processing device (1) is provided with a controller (20). The controller (20) calculates a fundamental frequency component included in audio data and a high-frequency component corresponding to the fundamental frequency compon...
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WO/2021/160037A1 |
The present disclosure relates to a vibration measurement device for directly measuring the movement of a sensitive component. A detection circuit can output a displacement signal according to the displacement of a sensing component, and...
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WO/2021/160808A1 |
The invention relates to a system and method of analysing an object. The method comprises exciting the object at a vibration frequency so as to induce at least one wave, having the vibration frequency, on an excitation surface of the obj...
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WO/2021/159203A1 |
A method and system of using artificial intelligence to automatically create and generate music and lyrics that can later be played through a music engine or be played by human performers.
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WO/2021/160924A1 |
A device for detecting motion of a surface comprises a light source (101) for emitting light, a focusing lens (102) configured to focus the light, and a detector (103) configured to receive the focused light reflected off the surface and...
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WO/2021/160932A1 |
The present invention is an external calibrating device (10) for a measurement de- vice, where the latter can be an acoustic camera. The calibrating device (10) com- prises a sound source (11) and a light source (12), which are preferabl...
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WO/2021/158198A2 |
The invention is related to the field and methodologies of "nonlinear system identification in structural dynamics". In other words, it is related to the field and methodologies of constructing a mathematical model describing the vibrati...
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WO/2021/152685A1 |
An abnormality degree calculation device 200 is provided with an abnormality degree calculation unit 201 that calculates an abnormality degree on the basis of a feature amount extracted from subject data with respect to which the abnorma...
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WO/2021/153042A1 |
Provided is an AE signal detection device for a grindstone, the AE signal detection device being capable of detecting an acoustic emission wave from a point of grinding by the grindstone, not requiring replacement of an AE sensor, a prea...
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WO/2021/152787A1 |
A structure deterioration detection system according to this disclosure comprises a sensing optical fiber (10) laid on a structure, a reception unit (201) for receiving vibration information detected by the sensing optical fiber (10), a ...
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WO/2021/151410A1 |
The invention relates to a method comprising the steps: - carrying out multiple measurements on a mechanical object, the measurements each differing by one or more parameters influencing the measurement; - determining a spectrogram on th...
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WO/2021/151683A1 |
The invention relates to a method and a device for detecting the presence of an electrical current, wherein the device comprises detection means for detecting a physical effect linked to the presence of an electrical current. The detecti...
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WO/2021/151930A1 |
Disclosed is a vibration control device (1) comprising: a base (7); a coupling bolt (3) comprising a threaded segment (11) and a non-threaded segment (10) that are coaxial; a contact surface (5); an open resilient retention ring (15) hav...
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WO/2021/148759A1 |
The invention relates to a selective method for the nondestructive testing of a mechanical part (2, 3) of a mechanical device (1), carried out by means of a nondestructive testing system (10) comprising an excitation device (11) and a me...
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WO/2021/149097A1 |
A measuring device (100) comprising a laser light source (11), a beam splitter (121), an optical path converter (122), and a light-receiving unit (111). The beam splitter (121) splits laser light emitted from the laser light source (11) ...
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WO/2021/149649A1 |
This noise canceller comprises: a signal acquisition unit for acquiring an observation signal resulting from sampling of the vibration of a device; a signal delay unit for delaying the observation signal acquired by the signal acquisitio...
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WO/2021/147216A1 |
A distributed optical fiber acoustic sensing system. On the basis of a distributed optical fiber acoustic sensor having high spatial resolution, the interval between adjacent sensing units is a centimeter or millimeter level; by means of...
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WO/2021/148268A1 |
The invention relates to a device and a method for identifying and/or detecting the condition of an air filter (12), in particular a replaceable air filter element (16), by means of sound analysis. The sound analysis is preferably perfor...
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WO/2021/147191A1 |
Embodiments of the present application provide a strain mode analysis method and a related device. Said method comprises: acquiring N images of an object to be detected, said object comprising an elastic strain light-emitting composite f...
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WO/2021/149192A1 |
A utility pole degradation detection system according to the present disclosure comprises: a sensing optical fiber (10) connecting a plurality of utility poles (30); a receiving unit (201) that receives vibration information detected by ...
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WO/2021/145767A1 |
The photo-acoustic conversion based sound emitter device has a sound output surface for transmitting sound wave vibrations to a medium outside the device. An optical waveguide, is used to transmit light through an optical path within the...
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WO/2021/143742A1 |
Disclosed is a swing sensor, belonging to the technical field of sensors. The swing sensor comprises a suspended cantilever beam (1) and an optical fiber (2), wherein the cantilever beam (1) comprises a deformation area (11), and the def...
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WO/2021/146242A2 |
Aspects of the present disclosure describe distributed optical fiber sensing systems, methods, and structures that advantageously employ point sensors. that send sensory data/information over an attached, distributed optical fiber sensor...
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WO/2021/145284A1 |
According to the present invention, by taking into account the plastic deformation of the ground due to an earthquake, the risk level of a building is determined quickly, accurately, and without variation. This building risk level determ...
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WO/2021/144593A1 |
Apparatus (10) for monitoring the condition of an item of electrical equipment (1) whilst in operation comprises a vibration sensor (11) and an electrical sensor (12) operable to detect a characteristic operational electrical signal of t...
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WO/2021/145766A1 |
The photonic integrated device comprises a substrate, a plurality of mechanical resonator structures on a surface of the substrate, exposed to receive sound waves from outside the device; a plurality of sensing optical waveguides, each s...
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WO/2021/140911A1 |
This vibration processing device (10) comprises a vibration information acquisition unit (110), a reference region setting unit (120), and a determination unit (130). The vibration information acquisition unit (110) acquires detection da...
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WO/2021/137760A1 |
Disclosed are a method and apparatus for inspecting a wind turbine blade. The method includes: acquiring a sound signal generated by an impingement of wind on the wind turbine blade using a sound acquisition device; generating a frequenc...
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WO/2021/136973A1 |
Disclosed is a module (10) that can be coupled to safety and/or relief valves, for measurement, transmission and recording of events, which comprises a rigid elongate element that is inextensible at room temperature and defines an acoust...
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WO/2021/129834A1 |
A detector capable of detecting bearing faults in advance. The detector comprises a microprocessor which is connected to a power supply and a detection information output device, and further comprises a resonance enhancement-type piezoel...
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WO/2021/130132A1 |
Disclosed is a method for estimating a quantity representative of the sound energy at at least one point (r) of a three-dimensional space (E) where a plurality of antennas (A1, Am, AM) are situated, each comprising at least K acoustic se...
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WO/2021/130367A1 |
The invention relates to a device and to a method for detecting an acoustic wave propagating towards a membrane, the membrane supporting a waveguide comprising an optical cavity defining a resonant frequency. Under the effect of a vibrat...
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WO/2021/119929A1 |
Disclosed in the present application is a method for customizing vibration. The method comprises: acquiring node information of a target signal; calculating a signal expression and an envelope expression of the target signal according to...
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WO/2021/124827A1 |
The present invention is an earthquake monitoring system for a boiler, the boiler comprising a furnace and a cage part that is disposed at the back of the furnace. The boiler has vibration detection sensors for detecting: the vibration o...
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WO/2021/125156A1 |
Provided is a monitoring system that makes it possible to discover dirt on a rotary body of a paper machine and thereby maintain paper quality and improve yield. A monitoring system that monitors an operating paper machine for abnormalit...
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WO/2021/124783A1 |
Provided is a diagnosis apparatus that achieves more appropriate diagnosis. The diagnosis apparatus comprises: a sensor 110 for detecting diagnosis target information generated by a diagnosis target device 1; a threshold setting unit 127...
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WO/2021/121288A1 |
A real-time wear state monitoring device for a TBM rotary cutter and a method. The monitoring device comprises: a data acquisition and sending module (6), a wear sensing module (5), and a processor. The wear sensing module (5) comprises ...
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WO/2021/120387A1 |
A material dynamic measurement method and an axial vibration measurement system (600). A single-mode vibration sensor (10) and a measurement circuit (620) are used, so that a measurement signal only contains a single-mode axial vibration...
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WO/2021/122476A1 |
The invention relates to a method for measuring the vibration behaviour of a drivetrain of a turboset comprising a generator in a power plant connected to a power network, said method comprising the steps: a) selecting exciter signals, m...
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WO/2021/120033A1 |
Embodiments of the present invention provide a vibration signal processing method, apparatus and system, and a readable medium. The method comprises: obtaining target combined signal data, and segmenting the target combined signal data t...
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WO/2021/117752A1 |
The present invention includes: a step for generating feature amount vectors of a first rolling bearing, which are formed of feature amounts of vibration data on the first rolling bearing; a step for performing machine-learning for the f...
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WO/2021/113913A1 |
Disclosed herein is a mill liner assembly for a grinding mill, comprising: a mill liner which comprises a wear surface and an opposite inner surface that is arranged in use to be mounted in opposed relation to an interior surface of a sh...
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WO/2021/116681A1 |
A submersible sound speed measurement apparatus (100) comprises a frame (102) carrying an acoustic transducer (110) and an acoustically reflecting surface (124) respectively disposed at opposite ends thereof. A processing resource (126) ...
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