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Matches 1 - 50 out of 1,760

Document Document Title
WO/2020/262460A1
This optical sensor (1) comprises a metal base section (10) formed in a cylindrical shape, an optical fiber member (20) inserted into the interior of the base section (10), and a sensor head (30) that is formed from single crystal alumin...  
WO/2020/243896A1
An optical fiber grating directional pressure sensor (100), an optical fiber grating preparation method and an optical fiber grating preparation device (200); the optical fiber grating directional pressure sensor (100) comprises a double...  
WO/2020/215381A1
A glass breakage detection device and method. The glass breakage detection device comprises a packaging housing having an accommodating space, and an MEMS microphone, a pressure sensor, an ASIC chip, and a DSP chip that are installed in ...  
WO/2020/205072A1
A method for forming a pressure sensor is provided wherein an optical fibre is provided, the optical fibre comprising a core, a cladding surrounding the core, and a birefringence structure for inducing birefringence in the core. The bire...  
WO/2020/205910A1
A temperature sensor, and methods of making and using such a temperature sensor, whereby the temperature sensor includes a reversible thermochromic color-changing system having a dye, a developer, and a solvent. Upon exposure to a presel...  
WO/2020/182945A1
The invention relates to a measuring system (1), particularly for measuring pressure, comprising a measuring tube (2) and a deformation body (3), an evaluation unit for measuring strain and/or expansion (AW), and a housing (7).  
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...  
WO/2020/180794A1
Disclosed is a pressure sensor that comprises: a housing comprising an upper housing part and a lower housing part, the upper housing part and the lower housing part being configured such that a chamber is formed between them; a diaphrag...  
WO/2020/140418A1
Provided is a non-destructive monitoring method for internal pressure of the pipeline, an equation relationship is established by using the amount of change in an inner diameter of the pipeline being identical to the amount of change mea...  
WO/2020/133195A1
A device for measuring negative pressure, comprising a measuring device body (11), a measuring pipeline (12), a piston pad (13), a connecting rod (14), an air conveying pipeline (15), a storage airbag (16), a pressure spring (17), and a ...  
WO/2020/124473A1
Disclosed are an optical fiber pressure sensor and a manufacturing method therefor. The optical fiber pressure sensor comprises a signal transmitting and receiving device (1), a transmitting optical fiber (2) and a pressure detection dev...  
WO/2020/087197A1
Disclosed are an interferometric sensor employing a hollow-core photonic bandgap fibers, and a manufacturing device and method. The interferometric sensor comprises a first coupler, a second coupler, a first optical fiber, and a second o...  
WO/2020/056820A1
The present application relates to a method and device for measuring the temperature and/or deformation according to Brillouin shift. A section of bent optical fiber having both ends fixed is used, the effect of the strain on the Brillou...  
WO/2020/057601A1
A method for indirectly measuring the injection molding machine cavity (5) pressure by means of ultrasonic waves, comprising: transmitting ultrasonic waves to each pulling rod (2) in the axial direction of the pulling rod (2) respectivel...  
WO/2020/039496A1
When ballooning or crushing occurs in a pouch of a stoma prosthesis, the internal pressure of the pouch increases, and excrement intrudes into a space between a surface plate and the skin. This becomes the major cause of occurrence of le...  
WO/2020/013601A1
Embodiments relate to a torsion sensor device which measures a degree of torsion of a measurement object by using a fiber Bragg gratings (FBG) sensor, the sensor device comprising: an FBG sensor including a sensing unit formed in one sec...  
WO/2019/237170A1
The present invention consists in a method for measuring a flow, which comprises a non-intrusive, non-invasive flow sensor for measuring flow in pipes based on Fiber Bragg Grating (FBG) and Flow-Induced Vibrations (FIV), with the aim of ...  
WO/2019/240330A1
An image-based strength prediction system and a method therefor are disclosed. The method for predicting strength of a robot arm of the image-based strength prediction system may comprise the steps of: acquiring real images generated by ...  
WO/2019/221205A1
This pressure detector is provided with: a case connectable to a flow passage for liquid; and a diaphragm member for separating a liquid phase section which is mounted within the case and which can be filled with the liquid located in th...  
WO/2019/221204A1
This pressure detector is provided with: a case connectable to a flow passage for liquid; and a diaphragm member for separating a liquid phase section which is mounted within the case and which can be filled with the liquid located in th...  
WO/2019/219622A1
Disclosed is a piezoelectric flow meter comprising a substantially cylindrical duct (4) inside which a fluid is able to circulate, a piezoelectric sensor (6) placed around the duct (4), and an adapter module (8) connected to the piezoele...  
WO/2019/170884A1
A sensor (10) comprises a waveguide (20) having a longitudinal axis and an end face (21), the waveguide (20) comprising a Bragg grating (23). The sensor comprises at least one reflector (24) on the end face (21) of the waveguide (20). An...  
WO/2019/162681A1
The actual concentration, or partial pressure (58), of a target gas species in a partially-evacuated atmosphere (10) containing several gas species can be ascertained by generating a plasma (21) and by measuring (20) the intensity (24) o...  
WO/2019/154650A1
The present invention relates to a pressure sensing device (10) comprising an optical fiber (12), the optical fiber (12) comprises a central axis (L) and at least one optical fiber core (14), the at least one optical fiber core (14) havi...  
WO/2019/157009A1
A fluid sensing device includes an outer shell, a three-axis force and moment balance, a strut, and a centerbody. The outer shell has an inlet at a first end of the outer shell, an aft vent at an opposing second end of the outer shell, a...  
WO/2019/156742A1
A method for inspecting a wellbore. The method may include inducing a transient pressure pulse in the wellbore via a transient pressure pulse generator. The method may further include measuring a pressure trace of the transient pressure ...  
WO/2019/152851A1
Systems and method to measure pressure are described herein. The system can include a force sensor can that be implanted into a patient to measure, for example, cardiac pressure. The force sensor can include first and second film layers ...  
WO/2019/097213A1
A method for forming a pressure sensor is provided wherein an optical fibre is provided, the optical fibre comprising a core, a cladding surrounding the core, and a birefringence structure for inducing birefringence in the core. The bire...  
WO/2019/090786A1
An optical fiber Fabry-Perot sensor (1), and a manufacturing method thereof. The optical fiber Fabry-Perot sensor (1) comprises: a hollow tubular member (10) having a first tubular member (11), a cavity portion (12), and a second tubular...  
WO/2019/079689A1
Systems, methods, and apparatuses for taking pressure measurements are provided. A multi-hole pressure sensor probe can include a probe tip having a plurality of probe tip holes. The probe tip holes can lead to probe tip channels that co...  
WO/2019/051217A1
A pressure transducer (100) includes a cavity (102), a first dipolar molecule (104) disposed within the cavity (102), and a second dipolar molecule (106) disposed within the cavity (102). The first dipolar molecule (104) exhibits a quant...  
WO/2019/047626A1
A pressure sensor and a pressure detection method, the pressure sensor comprising: a liquid crystal box (1) which comprises a cholesteric liquid crystal layer (2), a liquid crystal state detection module and a pressure querying module, w...  
WO/2019/038328A1
The invention discloses a threshold sensor sensing a threshold resistance value by a physical property, whereas the sensor has RFID communication ability. The object of the invention to provide a sensor that can reliably and accurately d...  
WO/2019/028945A1
A pressure sensor, comprising: a displacement sensor (40), an elbow pipe (30) and a base (32); a first end of the elbow pipe (30) is fixed on the base (32), the displacement sensor (40) comprises a first reflection member (50) and a seco...  
WO/2019/024444A1
A pressure sensor and a manufacturing method therefor. The pressure sensor comprises a light emitting element (01), an interference filtering structure (02), and a photosensitive element (03) which are stacked to each other. The light em...  
WO/2019/019666A1
A fibre grating sensing demodulation system, comprising: a light source, an optical circulator, a sensing device, an optical spectrum analyser and a computer. The light source is used for realising the continuous output of light sources....  
WO/2019/013088A1
[Problem] To provide a pressure sensor device with which it is possible to suppress erroneous sensing of the pressure of a medium within a tube. [Solution] This pressure sensor device 30 is configured to be installable in a tube 11 throu...  
WO/2019/011386A1
The invention relates to a pressure sensor comprising a housing connected to a compressor head, the housing comprising a piston movably mounted in a cylinder, the cylinder is fluidly connected to a high-pressure part of a hydraulic syste...  
WO/2019/013089A1
[Problem] To provide a pressure detection device capable of limiting erroneous detection of the pressure of a medium inside a tube. [Solution] A pressure detection device 30 can be installed on a tube 11 transporting a medium BL and dete...  
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/2018/219492A1
The invention relates to a method for determining the pressure of a fluid, wherein there is a measurement arrangement for transmitting and receiving an acoustic wave, the acoustic wave passes along a measurement section (7) in the fluid ...  
WO/2018/210236A1
An optical fiber pressure sensor, an optical fiber pressure sensing system and the method for pressure measurement. The optical fiber pressure sensor comprises: a pressure sensing part (201) located on the optical fiber, and a reflection...  
WO/2018/205507A1
A dynamic five-hole probe, comprising a pressure-sensing part (1), a pressure-measuring hole transition section (2), a pressure-collecting section (3), dynamic pressure sensors (4) and soft-walled pressure-easing tubes (5), the pressure-...  
WO/2018/191860A1
A device for manufacturing an optical fiber end face thin film air pressure sensor, comprising a light source module (10), an optical fiber coupler (20), a spectral acquisition and analysis module (60), a conductive optical fiber (30), a...  
WO/2018/140964A1
Systems, methods, and media for detecting abnormalities in equipment that emit ultrasonic energy into a solid medium during failure are provided. In some embodiments, devices for monitoring a piece of equipment are provided, the devices ...  
WO/2018/084711A4
A combustion pressure sensor comprises a sensor body (9), at least one first optical fibre (1, 2) inserted into the sensor body (9), and a resiliently deformable membrane (7; 13) attached to the sensor body (9). The at least one first op...  
WO/2018/084711A3
A combustion pressure sensor comprises a sensor body (9), at least one first optical fibre (1, 2) inserted into the sensor body (9), and a resiliently deformable membrane (7; 13) attached to the sensor body (9). The at least one first op...  
WO/2018/101828A1
The embankment monitoring system comprises an optic sensor chain (10) and an interrogator (20). The optic sensor chain (10) comprises a series of intrinsic fiber optic sensors (12) that are mutually spaced with respect to each other in a...  
WO/2018/079363A1
This pressure sensor 1 is provided with: a base plate 50; and a functional element 40 which is stacked on the base plate 50 and comprises functional titanium dioxide which includes crystal grains of one or more types of β-phase trititan...  
WO/2018/070875A1
The invention relates to a pore pressure monitoring device, for use in geotechnical engineering, adapted to be deployed underground for monitoring pore-water pressure in the ground, comprising a pressure sensor cavity (2) and a pressure ...  

Matches 1 - 50 out of 1,760