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JP06201419 |
PURPOSE: To provide a pressure sensor in which deterioration of the elasticity of membrane is retarded and durability is enhanced by eliminating the effect of external vibration through subtraction and eliminating noise without vibrating...
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JP06194247 |
PURPOSE: To prevent a center diaphragm from zero-point variation during jointing and when an excessive pressure is applied by making a pressure receiving member with a single member, arranging two sets of pressure receiving chambers, tha...
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JP06194245 |
PURPOSE: To provide a differential pressure detector where the inside of a connecting pipe for a diaphragm unit can be degassed completely and quickly and an incompressive fluid can be also sealed as well so that the fluids on the respec...
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JP06194246 |
PURPOSE: To enable the differential pressure detection with good responsiveness and stability even in the state where the fluid temperature on the respective measurement pressure sides is different from that in the periphery of a connect...
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JP06186108 |
PURPOSE: To provide a differential pressure sensor wherein its size is small, its cost is low and its corrosion resistance is enhanced. CONSTITUTION: This sensor is constituted of a conversion part 3 which converts the output of a differ...
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JP06180263 |
PURPOSE: To provide a pressure introducing mechanism for differential pressure sensor using a both-surface pressure receiving type diaphragm where a partitioning structure between a protective fluid and a pressurizing fluid is made to be...
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JP06174510 |
PURPOSE: To easily measure the flow rate in wide range from a large flow rate to a small flow rate by placing an orifice plate so that it abuts on a gear- lock part protruding from the peripheral wall inside a pipe from an upstream side....
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JP06167406 |
PURPOSE: To accurately measure a fine pressure change regardless of the magnitude of pressure. CONSTITUTION: A differential pressure type pressure change measuring device is equipped with a differential pressure type pressure sensor 10, ...
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JP06166371 |
PURPOSE: To provide a method or an apparatus for changing the inside pressure of a vehicle at a determined rate when the outside pressure of the ventilated or air-conditioned vehicle changes suddenly. CONSTITUTION: The apparatus for elim...
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JP06148018 |
PURPOSE: To provide a semiconductor pressure sensor which can detect a plurality of differential pressures simultaneously at a constant accuracy through the use of a semiconductor pressure sensor chip. CONSTITUTION: A semiconductor press...
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JP06137982 |
PURPOSE: To detect abnormality in an equipment and change with time the lapse of by providing a sensor for detecting the physical property of a sealed liquid at a part where the sealing flow of a differential pressure transfer equipment ...
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JP06129933 |
PURPOSE: To provide a capacitance pressure difference sensor having an overpressure protecting function and a method for manufacturing the sensor. CONSTITUTION: A cavity 16 is formed in one surface 12 of an n+-doped single- crystal silic...
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JP06129932 |
PURPOSE: To prevent that an accurate pressure measurement is obstructed when a metal at the inner-face part coming into contact with a liquid of a process cover, electrons are emitted and hydrogen gas is stored at the inside of a detecti...
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JP06102127 |
PURPOSE: To detect the leakage of the sealing soln. of a transmitter by providing a capsule having a recessed part formed thereto, the liquid contact diaphragm covering the recessed part of the capsule and the pressure sensor provided to...
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JP06102128 |
PURPOSE: To obtain a composite function sensor capable of accurately measuring a wide static pressure range by providing a plurality of static pressure detecting parts having different static pressure sensitivities. CONSTITUTION: A senso...
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JP06102125 |
PURPOSE: To obtain a pressure transmitter not damaging a product even when a sealing soln. leaks by the damage of a diaphragm and excellent in pollution control and safety by filling the space filled with the sealing soln. with an insula...
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JP06102124 |
PURPOSE: To easily and accurately measure differential pressure in an arbitrary measuring position. CONSTITUTION: An outdoor machine 2 consisting of an outdoor pressure measuring part 5 and a transmission part 6 is arranged outdoors and ...
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JP06102126 |
PURPOSE: To ensure the long-term reliability of the pressure detection capacity in a device equipped with a pressure sensor having gas resistance. CONSTITUTION: A pressure sensor 14 provided with a pressure detecting part for detecting t...
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JP06094560 |
PURPOSE: To adjust the offset of the output of the detection circuit of a differential pressure sensor by a simple adjusting work. CONSTITUTION: A detection circuit is constituted so that pressure detecting bridge circuits 1, 2 containin...
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JP06082326 |
PURPOSE: To obtain a differential-pressure detector, which can obtain the highly reliable detected value of differential pressure all the time without the effect of temperature change. CONSTITUTION: Liquid separating diaphragms 4 and 5 a...
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JP06058834 |
PURPOSE: To obtain an inspecting apparatus for leakage conditions of a container which enables measurement without requiring so much time and moreover at a high accuracy. CONSTITUTION: In the measurement of leakage conditions, a tank is ...
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JP06058833 |
PURPOSE: To obtain a portable type differential pressure meter which allows a worker to carry it to chambers. CONSTITUTION: This apparatus is provided with a pair of measuring chambers 5 and 6 zoned sandwiching a diaphragm 4, a pair of a...
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JP06043057 |
PURPOSE: To protect the excessive pressure of a differential-pressure transmitter by outputting the differential pressure between the first pressure, which is applied to a recess part, and the second pressure, which is applied to the oth...
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JP06026965 |
PURPOSE: To provide a pressure gauge improved in resisting-pressure characteristics and having an excessive pressure protecting mechanism. CONSTITUTION: In a pressure gauge having a plate-like measuring diaphragm 61 which makes contact w...
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JP06026964 |
PURPOSE: To improve pressure resisting characteristic and enhance reliability by allowing a chamber formed on the recessed surface side of a center diaphragm to communicate with a chamber formed of the recessed surface side of a recessed...
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JP06026963 |
PURPOSE: To make it possible to simply manufacture with wide allowance of manufacturing and assembling tolerances by precipitating a diaphragm material on a spacer and then removing the spacer to form a cavity on one surface of a semicon...
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JP06026962 |
PURPOSE: To surely detect even a minute differential pressure, ensure a stable operation, reduce size and cost, further, eliminate a trouble such as contact failure, and enhance durability and reliability. CONSTITUTION: A differential pr...
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JP06018346 |
PURPOSE: To improve corrosion resistivity characteristics of a measuring device by constituting a ring-shaped welding part between a housing and center diaphragm with a welding part long along the ring surface direction and short in the ...
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JP06018347 |
PURPOSE: To obtain a differential pressure transducer assembly having a safety shuttle value for protecting a differential pressure transducer. CONSTITUTION: A trabsducer assembly having a differential pressure transducer 40 and a valve ...
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JP06011342 |
PURPOSE: To obtain a differential pressure type altimeter of high precision which can be used practically for photogrammetry by measuring a differential pressure between a closed space of which the temperature is kept prescribed and the ...
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JP06003212 |
PURPOSE: To facilitate welding and to improve yield by adopting a ring-state body ring made of nickel or nickel alloy. CONSTITUTION: This differential measuring device is constituted by ring-state body rings 33 and 34 made of nickel or n...
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JP05329082 |
PURPOSE: To provide a vacuum cleaner which can automatically make fine control of the suction force in compliance with the surface to be cleaned. CONSTITUTION: An electric vacuum cleaner concerned A1 includes a pressure sensor 1 to sense...
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JP05248979 |
PURPOSE: To simplify constitution and to enhance measuring accuracy by loading a second diaphragm having a sensor element provided on the upper surface thereof by second pressure forming difference pressure on the rear surface side of th...
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JP05232131 |
PURPOSE: To detect pressure difference in a cold plate directly with regard to a refrigerant-flow monitoring structure, which checks whether a constant amount of the refrigerant flows in the cold plate for cooling heated parts especially...
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JP05192275 |
PURPOSE: To automatically make the rotating direction of a rotary brush forward and backward, to reduce the operating force and to improve the dust collection efficiency by controlling the rotating direction of a rotary brush motor of a ...
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JP05192274 |
PURPOSE: To automatically control the rotating direction of a rotary brush by processing a signal of a pressure sensitive sheet by placing a ball on the pressure sheet whose resistance value is varied in accordance with pressure, install...
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JP05142092 |
PURPOSE: To obtain a fluid measuring device capable of quantitatively measuring the behavior of the wind acting on the gaps between roofing materials. CONSTITUTION: A fluid measuring device is constituted of holding parts 2 counterposing...
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JP05087665 |
PURPOSE: To obtain a differential pressure signal which is completely corrected for error with a differential pressure measuring instrument by arithmetically processing the signals of two measuring capacitors and a supplementary sensor. ...
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JP05056889 |
PURPOSE: To provide a floor surface detector which can obtain stably a detection resistance of a floor surface sensor and a high reliability of floor detection. CONSTITUTION: A floor surface sensor 22 provided with a conductive rubber pa...
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JP05056888 |
PURPOSE: To provide a floor detector of a vacuum cleaner which can obtain a high reliability of floor detection for a long time. CONSTITUTION: A floor surface sensor 22 has a double structure of a conductive rubber part 40 and a silicone...
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JP05020566 |
PURPOSE: To obtain a fluid density detector which can control the fluid density with good accuracy and has high reliability and to obtain a pressure abnormality detector which can detect with good accuracy for the drastic abnormal rise o...
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JP05015479 |
PURPOSE: To provide a suction fixture which can surely detect a surface to be cleaned by allowing an operating plate which is projected out of the bottom section of a suction main body in such a way as to freely appear frequently, to be ...
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JP04341226 |
PURPOSE: To provide the vacuum cleaner which can discriminate surely the kind of the part to be cleaned, and also, can execute the control corresponding to a user's intention. CONSTITUTION: On a straight line (a position in which a sucti...
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JP04341227 |
PURPOSE: To provide the vacuum cleaner in which a pressure sensitive conductive body does not become resistance in the part to be cleaned at the time of cleaning, and which can move smoothly a suction implement. CONSTITUTION: A suction i...
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JP04341225 |
PURPOSE: To provide the vacuum cleaner which can discriminate surely the kind of a part to be cleaned. CONSTITUTION: A pressure sensitive conductive body 13 is provided with a substrate 13, conductive rubber 13b, a holding body 13c and a...
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JP04318434 |
PURPOSE: To obtain a differential pressure switch employing flow rate control of fluid in which the operating point can be set accurately in the field. CONSTITUTION: The differential pressure switch 10 comprises a differential pressure t...
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JP04302479 |
PURPOSE: To get a sensor, which outputs a static pressure signal and an excessive pressure signal and is capable of miniaturization with simple structure, by junctioning a second silicon plate and a third silicon plate, respectively, so ...
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JP04294234 |
PURPOSE: To obtain a very small-sized differential pressure transducer. CONSTITUTION: This differential pressure transducer 20 is formed on a semiconductor base layer 21 of silicon and has a film spreading in a cavity 35 present at the u...
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JP04276534 |
PURPOSE: To provide a measuring device having a measuring member capable of detecting a pressure condition produced in a pressure tube of a hydraulic mechanism (pump, motor, impact machine or cylinder). CONSTITUTION: A measuring device b...
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JP04250398 |
PURPOSE: To monitor the pressure of a gas in a cask accurately and to approach easily, for example, at the time of repairing by providing a specific gas barrier means and a gas pressure direct measuring device. CONSTITUTION: A device has...
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