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WO/2021/110190A1 |
The invention relates to a method comprising the steps: - first exciting of the object by means of a multi-frequency signal; - detecting a first response signal of the object at one or more measurement points on the object; - transformin...
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WO/2021/113225A1 |
A device is provided for capturing vibrations produced by an object such as a musical instrument such as a cymbal of a drum kit. The device comprises a detectable element, such as a ferromagnetic element, such as a metal shim and a senso...
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WO/2021/111964A1 |
This invention comprises a haptic feature value calculation unit 2 for dividing target information having continuously or intermittently varying values into a plurality of equal sections and, for each of the plurality of equal sections, ...
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WO/2021/113508A1 |
A method and system (600) of determining the location and size of a crack in a blade (200) includes measuring a time of arrival of a tip of the blade at an angular position in a rotation by means of one or more sensors (602), using the t...
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WO/2021/109473A1 |
A microwave sensing-based full-field vibration measurement method, comprising: step 1, repeatedly emitting linear frequency modulated continuous wave microwave signals via one or more emitting antennae; step 2, receiving reflected signal...
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WO/2021/113107A2 |
Various methods and systems are provided for a multi-frequency transducer array. In one example, the transducer array includes an element formed of one or more sub- elements, at least one sub-element having a different resonance frequenc...
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WO/2021/104988A1 |
The invention relates to a sonar device comprising a support with negative buoyancy and a linear acoustic receiving antenna (A) comprising a body that is elongate from a first end (E1) to a second end (E2), the elongate body (C) being co...
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WO/2021/108517A1 |
An apparatus can be used for detecting acoustic signals of a vascular system. The apparatus can comprise at least one acoustic sensor. Each acoustic sensor can comprise a structure defining a hole therethrough. A piezoelectric layer can ...
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WO/2021/107863A1 |
An apparatus for monitoring mechanical integrity of an eye-safety component of an illuminator is disclosed. The apparatus comprises a transducer operable to create a vibration in the eye-safety component, a sensor operable to sense the v...
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WO/2021/103496A1 |
The present invention relates to an abnormal vibration-based gas insulated combined switchgear mechanical failure diagnosis method, comprising: first, using a vibration signal of a GIS in a normal state as a reference, and after determin...
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WO/2021/101786A1 |
A computer implemented media synchronization platform has a receiver that receives, from a user-operated computing device located at a live performance, a device media file. Furthermore, the computer implemented media synchronization pla...
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WO/2021/099264A1 |
The present disclosure relates to a method of determining changes in stationary states of a signal, the method comprising: receiving a plurality of sets of values, each set of values comprising at least one value of the signal; for each ...
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WO/2021/093181A1 |
A differential Coherent Optical Time Domain Reflectometry (COTDR) distributed acoustic sensing device based on a heterogeneous double-sideband chirped pulse. The device comprises a light source (1), a 1*2 polarization-maintaining fiber c...
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WO/2021/089936A1 |
The invention relates to a method (1) for monitoring a rotating machine (100) of an aircraft, wherein a measurement signal is acquired from the rotating machine. According to the invention, instantaneous frequencies (ƒĸ(t)) of sinusoid...
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WO/2021/085015A1 |
This detection device is for detecting the timing of the passage of a turbine blade. The detection device comprises: a sensor that includes a magnet and a coil which is disposed at a position subject to the magnetic flux generated by the...
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WO/2021/084940A1 |
Provided is an acoustic sensor that uses an optical fiber and has high directivity. This acoustic sensor (100) comprises a sensing part (10) and an interrogator (1). The sensing part (10) has a sensing element comprising an optical fiber...
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WO/2021/083539A1 |
The invention relates to a test device (11), comprising a support structure (13) and connecting structures (14, 15) supported by the support structure (13) for forming a detachable mechanical connection with an assembly (12), characteris...
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WO/2021/086614A1 |
Devices, systems, and techniques are described that relate to the monitoring of various types of components in industrial systems. These include battery-less monitors that run on power harvested from their environments, systems for acqui...
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WO/2021/086389A1 |
Permanent magnet motors (PMMs) can develop oscillations during motor startup that can cause damage to electric submersible pump (ESP) components. A system and method are presented for identifying mechanical and/or electrical caused oscil...
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WO/2021/079583A1 |
This monitoring device comprises: an acceleration acquisition unit for acquiring acceleration data of a vehicle traveling along a track; an acceleration effective value acquisition unit for acquiring a plurality of acceleration effective...
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WO/2021/077567A1 |
A device failure detection method, a device failure detection apparatus and a computer storage medium The method comprises: transmitting a measurement beam to a target device, and collecting a detection beam reflected by the measurement ...
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WO/2021/072508A1 |
Described herein is an optical fibre mounting structure (180) for fibre vibration sensing of a distributed system (100) of spaced apart vibration sources (112-131). Mounting structure (180) includes a base portion (200) having a two dime...
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WO/2021/074792A1 |
An acoustic transducer array and method of making same. A first metal layer is deposited on a first side of a piezoelectric composite to form a common electrode and a second metal layer is provided over the obverse side. Portions of the ...
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WO/2021/074041A1 |
The present invention relates to a method for detection and analysis of an external event occurring on an automotive glazing. According to the present invention invention, the method comprises : - receiving a signal comprising characteri...
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WO/2021/075015A1 |
The purpose of the present invention is to propose, for DAS-P, a designing method using a minimum value N of a frequency multiplexing number for measuring an intended vibration frequency with tradeoff between a measured distance and an u...
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WO/2021/073976A1 |
The present invention relates to a computer-implemented method of Condition Monitoring (CM) for rotating machines like motors, a corresponding computer program, computer-readable medium and data processing system for CM for rotating mach...
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WO/2021/069481A2 |
The invention provides a signal processing method for a distributed acoustic sensing system (DAS), where a scattered signal that was scattered at a scattering location along an optical path is received and interfered with a local oscilla...
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WO/2021/070483A1 |
The state detection device according to the present disclosure detects an operation state of a to-be-detected device that is provided with a reciprocating drive unit. The state detection device is provided with: a sound obtaining unit fo...
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WO/2021/069199A1 |
The invention concerns a device (1000, 2000, 3000, 4000, 5000, 6000) for measuring a surface of an object (100), the device comprising: - at least one light source (112, 212, 320, 520); - at least one optical sensor (102, 202, 624); and ...
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WO/2021/068939A1 |
A multi-component signal decomposition-based vibration recognizing method for a joint of a mechanical arm, comprises the following steps: (1) acquisition of vibration signals: controlling a target joint of a flexible mechanical arm to ro...
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WO/2021/071227A1 |
The present application relates to a motion detection device and a motion detection method. A motion detection device according to one embodiment of the present invention may comprise: a sound wave generation unit for periodically output...
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WO/2021/070924A1 |
A diagnostic system 1 according to the present invention is capable of diagnosing process equipment for controlling the flow of a process fluid that flows through a chemical plant, and is provided with an ultrasonic measuring unit 11, a ...
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WO/2021/065106A1 |
[Problem] To enable multi-point vibration measurement by means of a simple and cheap configuration. [Solution] According to the present invention, an interference signal generation unit generates continuous light, splits the continuous l...
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WO/2021/065663A1 |
A central processing unit (214) locates, on the basis of information relating to a bearing that is subject to measurement, regions of peaks having top 10 highest peak values in a frequency spectrum obtained through frequency analysis. A ...
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WO/2021/063604A1 |
The invention relates to a compressor (30). In order to increase the operating efficiency of the compressor (30), the compressor (30) is equipped with a structure-borne sound detector (33), which is used during the operation of the compr...
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WO/2021/059507A1 |
The optical fiber sensing system of the present disclosure comprises: an optical fiber (10) laid in a monitoring area; a detection unit (20) that monitors of the monitoring area using the optical fiber (10); a monitor (40); and a control...
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WO/2021/061779A1 |
A hydrophone used for measuring acoustic energy from a high frequency ultrasound transducer, or a method of manufacturing the membrane hydrophone. The membrane assembly is supported by the frame and comprises a piezoelectric. The hydroph...
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WO/2021/058732A1 |
Because of the increase of the obesity related diseases, it is desirable to be able to detect a fatty liver and quantify the content in fat for the fatty liver. Known methods are biopsy and magnetic resonance imaging. However, biopsy is ...
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WO/2021/060500A1 |
This signal processing device comprises: an acquisition unit for acquiring an acoustic signal; a measurement unit for measuring an acoustic level of the acoustic signal for every one of first frequency bands, which are a plurality of fre...
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WO/2021/059477A1 |
This optical fiber sensing system comprises: a reception unit (21) for receiving an optical signal from a sensing optical fiber (10), a specification unit (22) for specifying the occurrence of an event and the type of the event that has ...
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WO/2021/058731A1 |
Because of the increase of the obesity related diseases, it is desirable to be able to detect a fatty liver and quantify the content in fat for the fatty liver. Known methods are biopsy and magnetic resonance imaging. However, biopsy is ...
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WO/2021/061876A1 |
A hybrid sensor assembly is configured to be mounted on a vehicle to sense structure borne and airborne noises generated as the vehicle travels over the roads. The sensor assembly includes a housing having a circuit board mounted therein...
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WO/2021/052024A1 |
Provided is a washing machine vibration fault detection method, comprising: determining a standard vibration mode according to a vibration testing type option selected by a user (102); acquiring a target video corresponding to a washing ...
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WO/2021/052022A1 |
An electrical cable vibration detection method, applied in a vibration detection device (100). The vibration detection device (100) comprises a camera apparatus (110) and an anemometer (120). The method comprises: the vibration detection...
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WO/2021/052020A1 |
Provided is a vibration testing system, comprising: at least one vibration testing apparatus. A first video file of an object to be tested is acquired through the at least one vibration testing apparatus, thus facilitating the improvemen...
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WO/2021/052025A1 |
An electric fan vibration fault detecting method, comprising: a vibrating object being an electric fan, obtaining target videos corresponding to the vibrating object (103); amplifying the target videos using a Eulerian motion magnificati...
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WO/2021/052021A1 |
A vibration measurement system comprises a video acquisition device (101), an environmental data acquisition device (102), and a measurement apparatus (103). The video acquisition device (101), the environmental data acquisition device (...
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WO/2021/055718A1 |
A system and method for image reconstruction for non-contact ultrasound is provided, where maps or ultrasound images of a subject may be generated without physically contacting the subject. Adjusting or optimizing the photoacoustic excit...
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WO/2021/049008A1 |
This vibration detection device (4) comprises: an A/D conversion unit (41) that receives a sinusoidal signal of an AE wave corresponding to vibrations generated in a target machine (2) from an AE sensor (3) for detecting the AE wave, and...
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WO/2021/048528A1 |
A method of forming a Chemically Vapour Deposited polymeric conformal coating on a surface of a part (23). The method comprises placing the part (23) and a deposition regulator (28) in a deposition chamber (22); dispersing a gas into the...
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