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WO/1990/006496 |
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/1990/005289 |
A self-zeroing differential pressure signal generator (80) is disclosed. A strain gauge (12) separates two areas of potentially differing fluid pressure and generates an electrical signal which varies as the fluid pressure difference var...
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WO/1989/012809 |
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/1989/011640 |
According to the invention a pressure gauge is provided comprising a sensor housing (1) closed by a cover (7). The sensor housing (1) is connected to a tube (3) containing the pressure to be measured. The space defined by the sensor hous...
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WO/1989/010546 |
A capacitive pressure sensor (10) comprises: a housing (12) including first and second spaced apart diaphragms (114, 116), matched in compliance to vibrate and deflect in substantial unison in response to vibratory and acceleration force...
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WO/1989/009929 |
A method of assembling an electronic transducer having a dielectric casing member (23), a strain gauge (25), a metallic casing member (27) including at least one wall in part defining an integral flexible diaphragm (31), and an electroni...
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WO/1989/009385 |
A force or pressure sensor comprises a measuring body (3) subjected to the force to be measured and a reference body (11), both of which are supported on the housing (1) by force-sensing elements (5, 13). An evaluation circuit combines t...
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WO/1989/008244 |
A solid state measured sensor (10) is described in which the pressure sensor element (14) is protected from the measurand by a combination of a pressure transfer medium (31) and a thin covering membrane (32). A method is described for fo...
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WO/1989/005737 |
A device for exciting and monitoring wheel modules for monitoring tyres comprises control lines (5, 6) which excite simultaneously all the wheel modules except one, which is monitored. For this purpose, it comprises one exciting and moni...
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WO/1989/004089 |
An industrial process control transmitter (10) has a modular construction, with a detector module (16) and an output module (18) electrically connected together by a serial bus (20). The output module (18) includes a microcomputer (40), ...
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WO/1989/001615 |
Improved apparatus and method for monitoring and/or controlling gaseous processes including processes where thermal transpiration effects are present and improved gauging for use therewith. A generalized gauge interpreter (304) is disclo...
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WO/1988/009921 |
A transmitter provides an output that is indicative of pressure and has two modular transmitter bodies (20, 30), one (20) including a sensor (22), and the other (30) having an isolator diaphragm (32, 33) with a substantially non-compress...
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WO/1988/009490 |
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/1988/009533 |
A modular transmitter (10) has an outer housing (11) with a wall (12) forming an interior cavity (13) in which a control module is inserted. The wall (12) has one or more ports (37, 41) therein that are connected to pressure conduits. Wh...
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WO/1988/006982 |
A pressure probe (10) for measuring the air pressure inside tubeless tyres on motor vehicle wheels with one rim has a substrate (26) in a recess (31) on the front of the probe housing (14) and facing the inside of the tyre. At least one ...
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WO/1988/004773 |
Instrument for measuring the pressure of liquids that contain particles that cause clogging. A cylinder (1) co-operates with a piston (2) that may be displaced into or out of the cylinder (1) and is equipped with a no-volume-change tap (...
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WO/1988/004078 |
A pressure transducer of the type employing a pressure-responsive diaphragm (11) with silicon piezoresistive strain gauges epitaxially deposited thereon is provided with integral digital thermal compensation of span shift and zero shift....
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WO/1988/002235 |
The bottom of a housing (21) is opened in the downward direction, and a diaphragm (25) is sticked to the open end surface thereof. A pressure chamber (24) defined by the inner surface of the housing (21) and the diaphragm (25) is formed....
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WO/1988/002107 |
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/1988/001050 |
A flow rate sensor for an air filter (10) channels air flow to an audible sound generator (34) when the air pressure differential within the sensor exceeds a settable threshold. The sensor comprises a first chamber, defined by the interi...
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WO/1987/007948 |
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/1987/007375 |
The present invention relates to the field of means for measuring physical magnitudes and more precisely to a cell for measuring pressures. According to the invention, a cell (1) for measuring the pressure, implementing a pick-off (2) co...
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WO/1987/007374 |
To produce a device enabling the connection of a fluid-measuring apparatus, in particular for hydraulic oil, to a pipeline subjected to the pressure of a medium, a saddle (2) is provided which is fixed in a leakproof manner to the pipeli...
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WO/1987/006339 |
A circuit is suitable for signal amplification (V1) and for highly precise temperature response compensation (V2) of a thick film resistance pressure sensor (R1, R2, R3, R4).
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WO/1987/001606 |
A unitized drain manifold apparatus (10) for removing water from air in a conduit of an air data sensor system (9) for an aircraft (10) comprises a manifold (11) having a plurality of drain cavities (13) therein. Each drain cavity (13) h...
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WO/1986/007266 |
A pressure sensitive member (15) having first and second configurations, the member being movable from said first to said second configuration by application of an increased differential pressure on said member, the member having no stab...
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WO/1986/003835 |
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/1986/002446 |
A transducer includes a fluid inlet port (152) formed with a passageway (154) permitting flow of fluid therethrough and a pedestal (136) having a base (158) and also formed with a passageway (138) permitting flow of fluid therethrough. A...
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WO/1985/004474 |
A differential pressure sensor (10) senses a difference in pressure between a first input (low) pressure (12) or "reference pressure" and a second input (high) pressure (14) and provides a differential sensor signal representative of the...
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WO/1985/004012 |
A pressure sensing means for a body (10) movable in a fluid in a direction transverse to the longitudinal axis (33) of the body. The chamber (17) is provided within the body (10) and a plurality of bores (14) extending radially from the ...
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WO/1985/002903 |
Sensing instrument (10) for sensing the angular position of the longitudinal axis (17) of a cyclindrical sensor body (14) of an object moving relative to a fluid medium with respect to a first plane. Such object has a leading end portion...
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WO/1985/002255 |
Breathing tank gas pressure is periodically monitored by a pressure transducer (42), and battery powered, microprocessor controlled circuitry (21) responsive to the output of the transducer (42) controls a speech synthesizer (44) to arti...
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WO/1985/001578 |
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/1984/000732 |
Pressure tappings for rigid sails, the tappings (10, 11, 12, 15, 16) being located to either provided a stall warning or to enable tuning of the sailset to the desired operating angles. A particular flow-state sensitive stall warning dev...
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WO/1983/004286 |
The method is applied to a turbomachine, particularly to a pump, and to a support for a pressure sensor of a gaseous or liquid fluid, particularly an electronic pressure pick-off. The pressure or differential pressure of the fluid (3) co...
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WO/1983/003472 |
This invention relates to profile change sensors and is especially concerned with low energy profile change sensors. In more detail the profile sensor of the invention senses a change in the shape of a relative position or both of at lea...
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WO/1983/000385 |
A capacitive pressure sensor has a diaphragm means (12), a portion of which is conductive which forms a first capacitor electrode (18A). The sensor also has a reference disc means (14) a portion of which is conductive which forms a secon...
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WO/1982/001997 |
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/1982/000519 |
A circuit for compensating the temperature dependence of the deformation properties of a pressure transducer sensor, having four basic pans: a current source (26) having an output proportional to the sensor temperature, a constant voltag...
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WO/1981/003678 |
Pressure fitting (16) for incorporation into a pressure sensor assembly (10) for conveying fluid under pressure through a flange (12) which is coupled to the pressure sensing interface (14) of a pressure sensing module (11). The fluid un...
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WO/1981/003067 |
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/1981/003094 |
Amplifier circuit for temperature compensating the output voltage thereof with respect to undesirable temperature induced signals from a silicon pressure transducer (10) and/or from components of the amplifier itself. The amplifier inclu...
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WO/1981/002484 |
A leak detection apparatus (18) is provided in a pressurized assembly (10) to signal a loss of pressure or vacuum downstream from a source of pressure of vacuum. A rod (60, 160, 260) is carried on a valve (62, 162) and a diaphragm (38, 1...
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WO/1981/002062 |
Fluid pressure monitoring device, particularly for controlling a solenoid valve in the gas feed of a spectrophotometer is described. The device has a housing (10) with a pressure chamber (11) having a diaphragm (16) which moves a plunger...
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WO/1980/001318 |
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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JP2012018089 |
To provide a pressure sensor capable of eliminating influences due to excessive pressure by a simple structure, and facilitating the work of changing/adjusting an upper limit pressure.A pressure sensor 1 includes: a body portion 2 storin...
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JP2012018049 |
To provide a pressure measurement instrument capable of accurate measurement of pressure.There is provided a pressure measurement instrument comprising: a flexible film 1 for receiving pressure; a pedestal 2 that holds the flexible film ...
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JP2012013655 |
To provide a dynamic quantity sensor in which lowering of sealability is suppressed by minimizing decrease in seal face smoothness and deformation of a seal face shape.A dynamic quantity sensor includes a sensor unit for detecting a dyna...
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JP2012007932 |
To solve the problem that a pressure introduction port provided on a ceiling part of a package cover is closed by a resin while the resin is dropped after joining the package cover on a base material in order to prevent a sealing resin f...
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JP2012002742 |
To make the output accuracy of a physical quantity sensor in a determined temperature segment.A physical quantity sensor includes a memory part 133 for storing data relating to higher correction formula g1, g2 which are quadratic equatio...
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