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WO/2021/239192A1 |
The invention relates to a method for determining the vibration behavior of an electric motor (23), more particularly an electric motor of a fan. When a driving feed is deactivated, the electric motor (23) used in the method coasts from ...
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WO/2021/238058A1 |
A structural vibration mode testing system and method based on digital image recognition. The structural vibration mode testing system based on digital image recognition comprises a camera (1), targets (2), a bridge (3), a vertical accel...
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WO/2021/236426A1 |
Aspects of the present disclosure describe physical layer security in optical telecommunications networks wherein a filtering-based physical security is provided by a wavelength tunable distributed fiber optical sensing (DFOS) system ope...
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WO/2021/234828A1 |
A vibration analysis device (2) includes a storage unit (24) that stores, for each acceleration peak, a regression equation (50) expressing correspondence between a change in a rotational speed of a rotational mechanism (10) and a peak o...
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WO/2021/236539A1 |
Aspects of the present disclosure describe systems, methods, and structures for distributed temperature sensing that employ joint wavelet denoising to achieve desirable signal-to-noise ratio(s) over extended sensor fiber distances.
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WO/2021/234985A1 |
Provided is a technology that makes it possible to highly accurately diagnose a state such as an abnormality relating to a power transmission mechanism while suppressing or preventing erroneous diagnosis and the like, even if there is mo...
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WO/2021/236383A1 |
Aspects of the present disclosure describe a coherent distributed acoustic sensing (DAS) method employing a combined complex and phase domain vibration strength estimation are employed to produce a distributed acoustic sensing output sig...
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WO/2021/232196A1 |
An optical fiber sensor (100) and a method for position detection using the optical fiber sensor (100). The optical fiber sensor (100) comprises: a laser generating device (110); a circulator (120) which is provided with a first port (A)...
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WO/2021/231344A1 |
Aspects of the present disclosure describe improved distributed acoustic sensing using dynamic range suppression of optical time domain reflectometry either by using a feedback loop comprising optical and electrical elements or using a n...
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WO/2021/231340A1 |
Aspects of the present disclosure are directed to alternative repeater design(s) that advantageously improve signal-to-noise of distributed acoustic sensing (DAS) systems using coherent detection of Rayleigh backscatter in multi-span lin...
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WO/2021/231339A1 |
Aspects of the present disclosure are directed to laser interferometric systems, methods, and structures exhibiting superior laser phase noise tolerance particularly in seismic detection applications wherein laser requirements are advant...
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WO/2021/227010A1 |
Provided is a high temperature resistant miniaturized resonator gyroscope. The gyroscope comprises a resonator (1), a circuit board (5), a piezoelectric element (2), a support base (3), a housing (4), and a wiring terminal (6). The reson...
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WO/2021/229947A1 |
This learning system relates to diagnosis of the condition of a running cart. The learning system includes a sensor (21), a machine learning unit (41), and a condition determination unit (43). The sensor (21) measures vibration caused by...
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WO/2021/226687A1 |
The invention relates to equipment for detecting tears in a conveyor belt comprising a base structure (2) provided with two parallel bars (21). Two parallel tubes (11) are fastened to the base structure (2) by any appropriate fastening m...
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WO/2021/229948A1 |
This rail-guided carrier system (3) comprises a traveling rail (9) and a traveling carrier (7) that travels along the traveling rail (9). The rail-guided carrier system (3) comprises a sensor (21) and a diagnosis device (17). The sensor ...
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WO/2021/220162A1 |
The present disclosure relates to a method and a device for non-invasive vibration-based condition monitoring of a machine placed on a physical frame of reference, using a time-domain broadband magnetoresistive sensor having a sensor tra...
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WO/2021/221015A1 |
A diagnosis system 1 comprises: a vibration exciter 100 that vibrates a diagnosis target device; a sensor that detects diagnosis target information for diagnosing the diagnosis target device 10; and a diagnosis unit that performs diagnos...
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WO/2021/221867A1 |
Technologies are generally described for a vibration band alarm configuration tool to facilitate efficient and reliable setting configuration by displaying data and analyses pertaining to the data produced by a vibration transducer attac...
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WO/2021/222892A1 |
Devices for providing an acoustic wave to a target location include at least one transducer device and at least one beam-forming processor to cause the at least one transducer device to produce a first acoustic wave, the first acoustic w...
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WO/2021/220203A1 |
A distributed fiber sensing system may use an integrated coherent receiver. The integrated coherent receiver may include a planar lightwave circuit having optical signal paths for separately operating on a signal input and a local oscill...
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WO/2021/222376A1 |
A rearview assembly is disclosed. The rearview assembly comprises a reflective element and/or a display element. Further, the rearview assembly comprises an array of piezo-electric sensors. The array of piezo-electric sensors may be oper...
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WO/2021/219938A1 |
A method for measuring noise (55) is disclosed. The method comprises a sound pressure measurement step for measuring sound pressure information (80i) from a noise source (53) with a sound pressure sensor (80). The method further comprise...
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WO/2021/216631A2 |
A wearable sensor system capable of receiving mechanical waves comprises at least one MEMS sensor secured to a user. The MEMS sensor is adapted to receive mechanical wave signals generated by a body part of the user when the user effects...
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WO/2021/215925A1 |
The present disclosure relates to a method and apparatus for sensing of particles suspended in a fluid which flows through a channel, characterized in that a first optical element is attached to said channel; a second optical element is ...
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WO/2021/216486A1 |
A non-linear dynamic process such as multiphase flow is characterized to determine a condition of the process. A sensor may obtain information about strain, vibration, flow rate, etc. during the process. That sensor data may be plotted, ...
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WO/2021/215595A1 |
The present invention relates to a method for visually displaying improved acoustic information of an acoustic camera, comprising: 1) a step (S110) in which an acoustic camera is provided; 2) an absolute level assignment step (S130) in w...
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WO/2021/215658A1 |
The present invention relates to a waveguide pipe for an ultrasonic sensor which not only shortens the minimum detectable distance of the ultrasonic sensor, but also can suppress the occurrence of unwanted exit reflection waves. The wave...
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WO/2021/212687A1 |
Disclosed is an ultrasonic measurement device for realizing differential balance detection on the basis of the SAGNAC principle, the ultrasonic measurement device comprising a light source, a first polarization controller, a second polar...
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WO/2021/212688A1 |
Disclosed is an ultrasonic measurement device for realizing, on the basis of the SAGNAC principle, an optical path and polarization state regulation and control, the ultrasonic measurement device comprising a light source, a sample probe...
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WO/2021/216694A1 |
An apparatus for inspecting a well having nested multi-tubular structure, includes: an acoustic transducer conveyed in an inner-most tubular in the structure and configured to receive a return acoustic signal having a plurality of resona...
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WO/2021/216493A1 |
Systems and methods for identifying potential bullying are disclosed. In various aspects, a system for identifying potential bullying includes a sound detector configured to provide samples of sounds over time, a processor, and a memory ...
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WO/2021/213808A1 |
The present invention relates to a fault state detection apparatus, comprising: - an input unit; and - a processing unit. The input unit is configured to receive condition monitoring data. The processing unit is configured to implement a...
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WO/2021/211392A1 |
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously achieve single mode fiber distributed temperature sensing (DTS) with improved noise characteristics by...
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WO/2021/211476A1 |
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) distributed acoustic sensing (DAS) systems, methods, and structures that advantageously provide the localization of utility poles along a route of fiber op...
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WO/2021/210437A1 |
A purpose of the present invention is to provide an error diagnosis device for a rotary motor system capable of increasing the reliability of diagnosis compared to before by being able to determine the degree of accuracy of an error diag...
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WO/2021/211390A1 |
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously enable smart refrigeration systems including retail.
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WO/2021/209223A1 |
A method for inspecting a chassis (3) of a vehicle, the chassis (3) of which is mechanically stimulated by at least one stimulation signal (S1), wherein at least one response signal (S2) that characterizes the mechanical stimulation of t...
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WO/2020/260807A9 |
A method for acquiring data for detecting damage to a bearing, comprising the following steps: (a) Obtaining (S10) a vibration signal from the bearing over a period of time; (b) determining (S14) spectrograms of said vibration signal at ...
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WO/2021/211477A1 |
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) - distributed acoustic sensing (DAS) based systems, methods, and structures that advantageously enable and/or facilitate the determination of natural frequ...
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WO/2021/209816A1 |
Piezoelectric devices having small dimensions and which can operate at high frequencies with high penetration depths for a given applied voltage are described. The devices may be well suited for integration into medical devices, such as ...
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WO/2021/209726A1 |
The present invention relates to a method for identifying a sound source comprising the following steps: (S1): acquisition of a sound signal; (S2): application of a frequency filter to the acquired sound signal in order to obtain a filte...
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WO/2021/211394A1 |
An advance in the art is made according to aspects of the present disclosure directed to distributed fiber optic sensing systems (DFOS), methods, and structures that advantageously provide the continuous monitoring of aerial cables using...
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WO/2021/208125A1 |
A measurement method for the five-dimensional vibration of a rotating blade: by means of a first arrival moment, a second arrival moment and a first key phase moment when a blade to be measured has no vibrations to be monitored, and a th...
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WO/2021/210643A1 |
The present invention pertains to a device for detecting the location of damage in an underground or otherwise buried pipe, and provides a buried-pipe damage location detection device that has few operation buttons and is universally des...
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WO/2021/211395A1 |
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) distributed acoustic sensing (DAS) based systems, methods, and structures that advantageously enable and/or facilitate the monitoring of civil infrastructu...
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WO/2021/209821A1 |
Provided herein is a vibration information collecting device and a vibration information collecting system. The vibration information collecting device comprises at least: A case; a processing unit supported by the case; a power supply f...
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WO/2021/211396A1 |
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously enable and/or facilitate the continuous, realtime monitoring and identification vehicle speed, vehicle...
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WO/2021/210778A1 |
A method for inspecting whether a magnetic contactor is defective, according to one embodiment of the present invention, may comprise the steps of: collecting noise data of the magnetic contactor as raw data; acquiring spectrum data by s...
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WO/2021/206798A1 |
An acoustic vector sensor and a method of detecting an acoustic vector are described. An object suspended in the fluid medium by a non-contact support structure. The object and the non- contact support structure are configured so that th...
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WO/2021/206600A1 |
A system for controlling an internal state of in a tumbling mill (10) having a shell (20) that rotates around an axis (60) at a speed of rotation (fROT) for grinding a charge of material (30) by tumbling the material in the rotating shel...
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