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WO/1990/006496A1 |
A Bourdon tube (20) pressure gauge (10) has a movement amplifying mechanism (32) comprising a pinion (30) of segment (25) shaped permanent bar magnets (29a) extending radially and terminating at a circular edge magnetically driven by a p...
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WO/1989/012809A1 |
A quad disk static pressure probe apparatus (10) including: a hollow stem member (15) having a plurality of static pressure ports (16) disposed on its periphery; an apertured collar unit (14) surrounding the stem member (15) and being in...
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WO/1989/011601A1 |
This invention relates to a coned disk spring which is used as a diaphragm and a keytop returning spring of a keyboard switch, or the like. The coned disk spring (D) of the present invention has a structure whose corrugated section descr...
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WO/1989/006512A1 |
An optical reflection hydrophonic probe is useful for determining the pressure-time behaviour of pressure waves in fluids. One end of an optical waveguide (glass fibre) dips into the fluid. The reflection of light at the tip of the glass...
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WO/1988/009490A2 |
Floating the diaphragm portion of a diaphragm sensor in the pressurizing fluid frees the diaphragm from exterior housing forces, and makes overall manufacture and replacement inexpensive. A diaphragm can be protected from exterior stress...
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WO/1988/007185A1 |
An isolator apparatus (12) for coupling pressure from a pressurized fluid carried in a conduit (40) to a pressure sensor (10A) in a pressure transmitter (10) having an isolation diaphragm (24), isolation fluid (54), and a pressure sealin...
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WO/1988/002107A1 |
A pressure transmitter (10) is coupled directly to an industry standard flange adapter union (40) having a standard bolt hole spacing. Small diameter isolator diaphragms (30, 31) are positioned on the transmitter case (11) at locations s...
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WO/1988/001049A1 |
A deflecting diaphragm differential pressure sensor (10) is formed so all electrical elements (30A-30D) and connections (34B) from external circuitry to the sensor (10) are isolated from the pressure media. The deflecting, pressure sensi...
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WO/1988/000335A1 |
A cell for sensing differential pressures has a single brittle material diaphragm (63, 93, 102) mounted on support plates (50, 75, 120, 130) positioned on opposite sides of the diaphragm (63, 93, 102). The diaphragm surfaces (43C, 77C, 1...
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WO/1987/007947A1 |
A capacitive pressure sensor (47, 75, 100, 130, 170, 190) that is fabricated in a batch process affords isolation for the sensing element (12, 102, 134, 183) and leads from the pressure media and provides stress isolation as well. The pr...
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WO/1987/007948A1 |
A pressure transducer has a stress isolator layer (18) which permits the sensor (25) to be non-resiliently mounted (hard mounted) to a mounting surface (26) that in turn is subjected to strain. The strain of the mounting surface (26) ten...
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WO/1987/004789A1 |
Pneumatic pressure sensor of the kind where the pressure to be sensed acts on a diaphragm (50) which moves to control the exhaust of gas from a pressurized control chamber (20). The invention provides means for inhibiting or preventing t...
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WO/1986/003835A1 |
The pressure detector which generates electric signals is provided with sensor elements (11) carried by a membrane (12) which is deformable as a function of the pressure and which closes a reference pressure chamber (18) with respect to ...
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WO/1985/002001A1 |
The flexible tubular conduit comprises an inner pipe (1) made of flexible material providing for tighteness characteristics with rspect to the conveyed product, a first assembly of reinforcement armatures (2) providing for resistance cha...
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WO/1985/001578A1 |
A sensing instrument (24) is used for sensing atmospheric pressure and the output is connected in a method of operation to provide accurate measurement information. The instrument (24) comprises an enclosure (26) that has a shape exposed...
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WO/1983/003136A1 |
A closed pressure monitoring system (20) in which a pump (27) delivers gas on a supply line (22, 29) through a first accumulator chamber (30) to a load device (21) and returns the gas on a returnline (23, 28) through a second accumulator...
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WO/1983/002157A1 |
A temperature or pressure sensing element of the kind having an expansible capsule or bellows (1) connected a capillary tube (2) by way of an hermetic seal is fabricated by sealing the capillary tube (2), which may be of aluminium, stain...
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WO/1983/002004A1 |
Improved apparatus (16, 17) for conveying fluid pressures to a differential pressure transducer (14). The apparatus (16, 17) comprises a single flange (16) connected to and fluidly coupled to the differential pressure transducer for conv...
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WO/1983/000217A1 |
A strut mounted multiple static tube providing, as shown, multiple separate static pressure measuring systems and using one probe (10) with separate sets (23, 24 and 35, 36) of pressure sensing ports for each system. The probe (10) is de...
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WO/1982/003916A1 |
A pressure transducer (12) having a housing (14, 16), a pressure port (24) through said housing (14), a cylindrical recess (22) in said housing (14, 16) and communicating with said pressure port (24). A pair of nested bellows (50, 64) is...
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WO/1982/001997A1 |
A pressure diaphragm (10), wherein at least a portion of an elongate fluid channel (19) is formed diametrically across, and is open through (21) a flat raised surface (13) of a substantially rigid, disk-like body (11). A flexible membran...
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WO/1981/003067A1 |
Apparatus for indicating quantity of liquified gas contained in a storage container for supplying gas to a consuming appliance, the apparatus including a pressure sensing means for sensing gas pressure within the container and being arra...
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WO/1981/002664A1 |
An esophageal cardiac pulse probe (10) includes a lumen (12) for insertion into the esophagus, the end of the lumen preferably being closed by a flexible diaphragm (24). Pressure variations imparted to the fluid within the lumen in respo...
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WO/1981/002511A1 |
A novel apparatus and method for suppressing unwanted resonance in an electromanometry system. The apparatus includes a compliant air cavity (12) connected through a variable impedance device (14) which is coupled in parallel to the liqu...
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WO/1980/001318A1 |
The device (10) includes a housing (12) defining a primary chamber (26). The primary chamber (26) has a first end (28), a second end (30) and an axis (32) extending between the two ends. A movable member (34, 62) is supported in the prim...
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WO/1980/001152A1 |
Pressure gauge which is adapted to be continuously mounted on the valve stem of the inflated device. It includes an airtight enclosure positioned within an outer housing which enclosure expands towards the inflated device in response to ...
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WO/1980/000037A1 |
The pressure transducer of this invention comprises a bellows made of two sheets of diaphragm plates which have concentric top and bottom portions and are of a radially continued wave form and adhered to one another at the peripheral edg...
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WO/1979/001099A1 |
A device for measuring pore water pressure in soils employs a pore pressure sound (2) as a sensing member and a closed measuring system (5, 6) for creating the least possible disturbance in soils having a low degree of permeability, such...
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JP2024041171A |
An object of the present invention is to solve problems caused by making a pressure sensor compatible with inert. [Solution] A sheet-like diaphragm 8 made of a non-metallic material and a diaphragm-facing surface 10 made of a non-metalli...
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JP2024512892A |
Fault detector for detecting the occurrence of sudden pressure increases in electrical devices. The fault detector has a chamber having an interior, a diaphragm in sealing engagement with the chamber, and an opening providing fluid commu...
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JP7450929B2 |
To provide a pressure measurement system, a pressure measurement method, and a program capable of more practically measuring pressure in an organism.The system comprises: a container having a space to store a liquid; a film which is made...
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JP2024027877A |
An object of the present invention is to provide a MEMS module that can accurately derive changes in outside air pressure. A substrate 30 having a thickness that covers a hollow portion 360 formed inside the substrate 30 and whose shape ...
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JP7440281B2 |
To provide a diaphragm and a pressure sensor that can be made thin.The diaphragm is a diaphragm for a pressure sensor that is arranged so as to cover an opening opened in a frame portion, has a peripheral edge portion fixed to an opening...
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JP7440290B2 |
To provide a pressure sensor that has high pressure resistance performance, small measurement error by suppressing hysteresis with respect to pressure, and high sensitivity and high productivity, a pressure sensor includes a diaphragm un...
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JP7431624B2 |
To provide a pressure gauge that can eliminate the necessity of using a joint for connecting a connected part.A pressure gauge 1 comprises a bourdon tube 3 that has a bourdon tube connection part 31 formed in a tubular shape and a bourdo...
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JP7430575B2 |
Pressure sensors (B1, B2, R19, R20) that can be reliability operated with the maximum current flowing through the device (210, 220, 230) restricted to 10uA or below, or below 50uA in a single-fault condition. This can provide at least a ...
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JP2024505341A |
A balloon catheter non-contact pressure measurement system and a balloon catheter non-contact pressure measurement method using the same include a chamber section, a balloon, a tube section, a pump section, and a displacement sensor sect...
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JP7421769B2 |
To make it possible to accurately measure a total pressure distribution while favorably adjusting flow rate even if a duct interior is a supersonic flow field.A duct inner pressure measurement structure measures a pressure distribution o...
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JP7417698B2 |
Provided is a pressure sensor, which realizes a film stress reduction structure with reasonable machining dimensions, so that zero shift caused by a deposition film of a sensor diaphragm is as small as possible. The present invention is ...
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JP7415672B2 |
To allow for properly and reliably coupling a measurement probe and a pressure measurement device body and ensuring airtightness and pressure resistance while connected to obtain accurate measurement results.A sealing material 40 is prov...
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JP2024002271A |
[Problem] To easily install and remove measuring equipment when measuring pressure distribution in a tunnel. Also, when controlling the measurement of pressure distribution inside the tunnel, it is possible to monitor the measurement sta...
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JP2023178267A |
To provide a diaphragm device that is not easily affected by damage due to a process medium and/or other environmental effects, or is well protected from the damage due to the process medium and/or other environmental effects.The present...
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JP7388494B2 |
Provided is a sensor device (1) that accurately calculate a temperature of a detection target and simplifies a shape of a housing. The sensor device (1) includes a pressure sensor (60), a first temperature sensor (70) that detects a temp...
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JP7377028B2 |
To provide a pressure sensor suitable for measuring high-concentration slurry.A pressure sensor 10 provided herein comprises a pressure receiving surface 30, and a soft rubber part 40 covered by the pressure receiving surface 30 in close...
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JP7372062B2 |
A pressure sensor includes a movable electrode formed in a movable region of a diaphragm, and a fixed electrode formed opposite to the movable electrode. A pressure receiving surface of the diaphragm is held in an inactive state. The ina...
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JP2023159282A |
To provide an in-line device or system that can determine the vapor pressure of fluid in a measuring instrument assembly in a continuous and real-time manner under process conditions.A vibratory measuring instrument for determining the v...
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JP7372180B2 |
To provide a pressure gauge for a fire extinguisher and a scale plate capable of improving a yield.A pressure gauge for a fire extinguisher includes a case body connected to a measured part, which is made of metal and formed into a plate...
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JP2023156122A |
To provide a pressure sensor which can measure pressure with high accuracy and can be miniaturized.A pressure sensor includes: a substrate; a cavity provided in the substrate; a cap provided on the substrate to seal the cavity; and a pre...
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JP7358242B2 |
Systems and methods for providing real-time modification of cutting process programs using feedback from one or more sensors which measure one or more operational parameters of a cutting process and/or cutting apparatus. The sensor readi...
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JP2023132229A |
To provide an MEMS sensor with which membrane destruction is prevented while suppressing effects on characteristics.An MEMS sensor, which detects a membrane curvature in a prescribed range with a strain gauge, includes a cavity which is ...
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