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Patent Searching and Data


Matches 351 - 400 out of 1,305

Document Document Title
JP2007024500
To provide a differential pressure transmitter which allows measurement with a stable output against ambient temperature changes, has a simple structure, and is inexpensive.The differential pressure transmitter transmits pressure from a ...  
JP3906833
To improve durability by restraining influence of condensed water in pressure transmission pipes 40, 41 and making the influence of heat and vibration of an engine 1 hard to be exerted, in a device for detecting the exhaust pressure from...  
JP2007017223
To reduce labor hour for oil injection or diaphragm mounting and minimize the difference between respective oil pressures in two pressure detection chambers in an oil sealing type differential pressure sensor.A case 10 has a sensor eleme...  
JP3900351
To realize the shape of a backplate surface such that a preload diaphragm initiates distortion at a set pressure value. A differential pressure measuring system comprises a backplate surface provided on the side of a main body and a prel...  
JP3895937
To adjust sensitivity to be high to the static pressure, and to be low to the differential pressure, and to reduce crosstalks, by installing gages for static pressure detection at the optimum position. A diaphragm 3 is formed on the cent...  
JP3892065
To fix a sensor chip comprising a pressure sensitive element coupled to a glass seat to a housing while a fluctuation in characteristics of the pressure sensitive element is prevented. A seat 25 of a sensor chip 23 is bonded to a stem 28...  
JP2006329846
To provide a pressure sensor capable of easily and exactly diagnosing clogging of a pressure guide tube without being affected by flow rate of the process and diagnostic method for clogging of the pressure sensor.The pressure sensor dete...  
JP3887290
To provide a differential pressure transmitter for reducing variations in the O/L working points due to changes in the temperature of a excessive pressure protective mechanism by a simple structure and relaxing restrictions on the specif...  
JP3876941
To enable surely agitating solution in a tank in a short time by installing upper part agitating air piping for agitating solution in the upper part in a storage tank and lower part agitating air piping for agitating solution in the bott...  
JP2006308578
To provide an equalizing valve for measuring differential pressure and a differential pressure type flowmeter, capable of making size compact, of simplifying, and of reducing the cost.The first inlet passage 361 is extended along the axi...  
JP2006300570
To provide a differential pressure/pressure transmitter dispensing with an excessive pressure protection mechanism in a pressure-receiving body itself.In this differential pressure/pressure transmitter for transmitting a high-pressure si...  
JP3859734
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...  
JP3847281
To provide a pressure sensor device having a simple structure and capable of being miniaturized, in which the excessive pressure protection operational pressure for a sensor chip can be made sufficiently high. The pressure sensor device ...  
JP3845615
To provide a new structure for a flow sensor which facilitates measurement of a minute differential pressure when a minute flow rate is measured, and has a higher withstand pressure. A chamber 20 is partitioned into a primary chamber 21 ...  
JP2006208225
To provide a high-precision differential pressure sensor which is not influenced by large fluctuations in baseline pressure.The differential pressure sensor comprises: a pair of diaphragms 1a, 1b including diaphragm parts 7a, 7b which be...  
JP2006177690
To provide a apparatus for measuring differential pressure which can measure a differential pressure simply, without requiring laying of pipelines.The differential pressure measuring apparatus which measures the differential pressure wit...  
JP2006177833
To provide a differential pressure transmitter, capable of acquiring values of differential pressure, H-side static pressure, and L-side static pressure in which simultaneity is maintained.The pressure transmitter is provided with both a...  
JP2006170984
To provide a differential pressure sensor 12 used for industrial applications.The differential pressure sensor 12 includes a membrane layer 36, having a covered portion 38 and an exposed portion 40, where a first side of the exposed port...  
JP2006170760
To provide a low-cost material having superior properties in corrosion resistance and mechanical strength, which is used as a diaphragm of a differential pressure transmitter for a liquid-level meter in a reaction vessel and a post-treat...  
JP2006170851
To reduce a detection error caused by a temperature difference between oils in both pressure detecting chambers, to the utmost, in a pressure sensor provided with the pressure detecting chambers with oils sealed in one face side and the ...  
JP3804242
To provide an electrostatic servo type physical amount detector of which permits high-sensitivity servo control. Carrier wave signals P1, P2 having different periods between a high level (Hi) and a low level (Lo) are applied to fixed ele...  
JP2006126214
To provide a differential pressure/pressure transmitter which can take have a large excluding volume, and prevent a sensor breakage due to excessive pressure.This device comprises a high-pressure (HP) side preliminary load diaphragm 32 a...  
JP3801837
To provide an instrument with which the oral cavity-pressure including the tongue pressure of a patient can be measured easily and a disposable probe used for the instrument. The oral cavity-related pressure measuring instrument is const...  
JP3800623
To provide a pressure receiving part capable of taking a large displacement even at a low pressure by forming a pre-loaded diaphragm in a wave shape. This transmitter comprises a high pressure side diaphragm part having a high pressure s...  
JP2006105707
To provide a pressure detector of high diagnostic accuracy, and to provide a diagnostic method of clogging.The pressure detector for detecting the pressure of a connecting tube, based on the deviation of the fluctuation of the pressure, ...  
JP3790081
To enable measurement of a height between two points requiring no special skill free from trouble regardless of the absence of clear perspective and the existence of any obstacle. A water tank 2 is installed at a measuring point P1 and a...  
JP2006090979
To provide a differential pressure measuring system capable of forming an interference fringe on a light receiving element by correcting an optical path difference.This system is equipped with a light source 4 for irradiating light, the ...  
JP2006078200
To provide a differential pressure sensor of noncontact type capable of maintaining high detection accuracy.The differential pressure sensor 1 for detecting the differential pressure of the working fluid between the high-pressure side an...  
JP2006078199
To provide the differential pressure sensor of a noncontact type capable of maintaining high detection accuracy.The differential pressure sensor 1 for detecting the differential pressure of the working fluid between the high-pressure sid...  
JP2006078453
To provide a differential pressure measuring system capable of eliminating a measuring error caused by a temperature change, without requiring a computer processing.This differential pressure measuring system is provided with a light sou...  
JP2006077865
To provide a fluid circuit module having a small physical size.The fluid circuit module 20 for an automatic transmission is provided for controlling fluid to be supplied to a movable element. It comprises a first body 24 forming a first ...  
JP2006058070
To provide a differential pressure measuring system capable of excluding a measurement error resulting from a temperature change, without requiring computer processing.The system is provided with a light source 4 for emitting light of a ...  
JP2006030098
To simplify calculation of determining a constant constituting a function f(P) previously in calibration and to reduce labor of the calibration, in a pressure measuring device that detects sensor capacitances C1(P) and C2(P) varying diff...  
JP2006023109
To prevent the occurrence of oscillation ripples as much as possible and reduce output errors due to the oscillations in a differential pressure detection type pressure sensor in which both pressure receiving surfaces of a pressure detec...  
JP3758001
To attain a minimum disturbed flow in an eddy chamber and further make a minimum releasing of counter-flow of air containing smoky fog by a method wherein an amount of air flowing to a discharging system through a bypass passage is chang...  
JP3758185
To provide a differential pressure transmitter capable of preventing coagulation of a fluid which is to be measured by estimating heat retention condition of a pressure guiding piping or a flange which guide in the fluid to be measured, ...  
JP2005331252
To provide a protector for protecting an apparatus from entrance of foreign matter capable of easily attaching/detaching to the apparatus and capable of protecting from the entrance of insect or grit into the opening of the apparatus at ...  
JP2005330935
To predict the life of a hydraulic pump by detecting the sign of pump rupture before the hydraulic pump is ruptured.The delivery pressure 122 of the hydraulic pump, an oil temperature 126, and drain filter pressure difference 120 are det...  
JP2005315890
To expand and improve a function, reliability and convenience, starting from a micromechanical sensor for detecting at least the first pressure of the first medium having at least one substrate 100 comprising a semiconductor material, an...  
JP2005292911
To provide a low-cost and easy-to-maintain electropneumatic converter or valve positioner.The electropneumatic converter or valve positioner comprises differential pressure measuring means for measuring a correct gauge pressure by differ...  
JP2005291740
To implement a differential pressure measuring apparatus in which the temperature characteristics of a wetted part are improved.The differential pressure measuring apparatus provided with a wetted diaphragm having one surface side in con...  
JP2005283447
To provide a pressure sensor capable of preventing water and dust from intruding into a pressure sensor inner space, by a simple constitution, and allowing inexpensive production.This pressure sensor is provided with an electric wire ins...  
JP2005274265
To actualize a low-cost flow meter for directly detecting a flow rate by solving a problem on a flow meter depending on conventional art.This flow meter uses one differential pressure gage using metallic diaphragms and an orifice 6 excha...  
JP2005274501
To provide a pressure detector that can simply diagnose the occurrence of jamming of a high-pressure side connecting pipe and a low-pressure side connecting tube, and to provide a jamming diagnosing method thereof.The pressure detector c...  
JP2005257498
To electrically shield a circuit section from external noises, while using an inexpensive structure of a pressure sensor, in which a sensing element for detecting pressures receives a pressure to be measured via a conductive diaphragm.Th...  
JP3722037
To simplify assembly configuration in a pressure sensor device constituted by assembling a sensor element for detecting pressure on a circuit board. This pressure sensor device is provided with the circuit board 10, the sensor element 20...  
JP3718847
To provide a differential pressure measuring apparatus that can easily and inexpensively confirm that connecting piping is clogged. In the differential pressure measuring apparatus, measurement fluid is introduced to a differential press...  
JP2005249515
To prevent a wire connected with a sensor and a diaphragm from contact causing generation of a short circuit as much as possible, in the pressure sensor of a differential pressure measurement system for measuring the pressure via a diaph...  
JP3714414
To provide a structure capable of reducing or eliminating the surface tensions of enclosed liquids by providing voids in between the rear surfaces of overpressure-protected diaphragms and the surfaces of contact liquids. This differentia...  
JP3711556
To make a diaphragm seal unit portion replaced easily, to enhance maintainability, and to cope with various kinds of processes. This diaphragm seal type differential pressure measuring instrument provided with the diaphragm seal unit via...  

Matches 351 - 400 out of 1,305