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Patent Searching and Data


Matches 551 - 600 out of 1,334

Document Document Title
JP2002206980A
To provide a differential pressure measuring apparatus capable of preventing a pressure-receiving diaphragm from being deformed or damaged by washing.The differential pressure measuring apparatus includes a differential pressure capsule ...  
JP2002188972A
To provide a pressure controller having no restriction on an installation space, capable of monitoring the quantity of a pressure change of a pressure source, detecting that the pressure of the pressure source becomes a fixed value or hi...  
JP2002174561A
To improve measurement accuracy of a differential pressure P and to prevent abrupt changes in the output, due to the measurement failure of the capacitance of a sensor, without deterioration in response by using the measurement value of ...  
JP3318804B
PURPOSE: To obtain high detection precision by making beam welding easier, so that a differential pressure sensor is miniaturized with the use of it, for reduced initial distortion of a diaphragm caused by welding end clamping torque. CO...  
JP3314349B
To reduce permeation of hydrogen through a diaphragm by providing an intermediate layer composed of any one or a plurality of aluminum, copper, platinum and gold in the diaphragm while spreading substantially in parallel with the surface...  
JP3314538B
PURPOSE: To detect an accurate value even when excessive pressure is applied from a process fluid by providing a differential pressure transmitter so that the pressure receiving direction of a center diaphragme is different from the pres...  
JP2002156307A
To provide a differential pressure type micro-leak detection method and a device capable of filling gas in a short time without generating the temperature difference between a test vessel and a reference vessel, and executing leak detect...  
JP3309583B
PURPOSE: To improve vibration resistance and maintenance property with a compact configuration by providing a pressure-reception part, a signal processing part, and a display part on nearly the same axis and changing the relative positio...  
JP3309577B
PURPOSE: To accurately detect the differential pressure between a first diaphragm and second diaphragm by arranging the second diaphragm perpendicularly to the first diaphragm. CONSTITUTION: Since the welding point of an overload protect...  
JP2002148096A
To provide a pressure sensor which can detect the pressure accurately with no restriction on the installing position in the casing, and a water level detector in which pressure variation in the casing causes no measurement error.In order...  
JP3307538B
To realize an integrated pressure-difference flowmeter, having simple structure in which the measurement accuracy can be enhanced by suppressing the effect of pulsating component of a fluid to be measured. A fluid to be measured flows fr...  
JP3305800B
PURPOSE: To perform display of the clogged state of the filter of in air- conditioning device for a vehicle and switching of an air introduction passage. CONSTITUTION: Pressure sensors are arranged in respective positions situated upper ...  
JP2002131094A
To provide a system for measuring a settlement state when sea bottom reclamation work and earth and sand burying work are performed.In the settlement measuring system comprising at least two or more pressure gages, a first communicating ...  
JP3299715B
To provide a potential take-out structure for a chip in which the size can be reduced while avoiding electrical troubles. A pressure sensor 10 comprises an extending part 42 formed on a lower glass 40, and a signal take-out part 50 depos...  
JP2002107258A
To provide an artificial leak device capable of providing the relation between atmospheric pressure-converted leak quantity and change of detected pressure without determining a work capacity in an air leak tester and precisely and easil...  
JP2002090470A
To overcome the problem of a prior art such that the precision of position detection of a pig traveling in a duct becomes worse as the distance between a sound listening position and the pig exceeds several km when the pig 10 is tracked,...  
JP2002090246A
To provide a pressure detector by which the pressure difference between a pressure applied to a liquid and a pressure applied to a gas can be detected easily by a method wherein the pressure difference between an intake pressure and a fu...  
JP2002071491A
To suppress the increase of the size of a recess part to the utmost and make the recess part passible to be appropriately filled with a sealing material in a pressure sensor having a pressure introducing hole formed at the bottom of the ...  
JP2002071494A
To provide a structure of a diaphragm coming into contact with a gas to be measured which prevents evils causing a bad influence by hydrogen molecules entering a pressure transferring liquid when the hydrogen molecules pass the diaphragm...  
JP2002062210A
To discriminate the cause of an error by a display shape by optionally setting the display shape at time of error in a differential pressure-pressure transmitter.In this differential pressure-pressure transmitter having the output settin...  
JP2002048665A
To heat and keep warm a pressure-receiving part efficiently with a heat transfer loss reduced.The inside of a cylindrical body 20 inserted to a pressure tap 18 of a sealed tank 1 is made a steam chamber 32. A steam injection opening 33 a...  
JP2002031578A
To provide a differential pressure measuring device used as a level gage, capable of reducing a facility cost.This differential pressure measuring device is equipped with a first connecting tube having one end connected to the high press...  
JP3271470B
PURPOSE: To make a process sate detecting device compact and to enable a user to use the device in an atmosphere where explosive gas exists and in a high temperature area by inserting a soft member easy to be deformed in the gap between ...  
JP2002022581A
To provide a small semiconductor pressure sensor requiring non external circuits and generating no noises in the range of unnecessary pressures.The semiconductor pressure sensor 1000 is formed by pasting together the frame parts and the ...  
JP2002022587A
To provide a pressure sensor capable of detecting two pressure differences with a simple structure unknown in the past by using ferrites.Two ferrite cores 1A and 1B are respectively provided with exciting coils 2A and 2B driven by altern...  
JP2002022585A
To provide a flange-mounting type differential pressure measuring apparatus having an enhanced temperature characteristic.The flange-mounting type differential pressure measuring apparatus includes a pressure sensor provided in a body, a...  
JP2002022586A
To make measurable differential pressure with high accuracy by preventing hydrogen gas from being diffused into diaphragms and released into sealed liquids to be bubbles.A first diaphragm 1 is fixed to a block 11 by welding or the like, ...  
JP2002005771A
To provide a fluctuation pressure sensor suitable for the detection of a slight pressure fluctuation such as the detection of a vibration pressure in a flow meter by a fluidic type fluid oscillator or a Karman's vortex flow meter.A piezo...  
JP2002005767A
To provide an inexpensive differential pressure measuring device capable of preventing the intrusion of rainwater and making stable pressure measurement with a simple structure.This differential pressure measuring device having a vent ho...  
JP2002005769A
To provide a differential pressure measuring device capable of replacing a seal diaphragm, reducing the maintenance cost, and friendly to the environment.This differential pressure measuring device in which a main body storing a pressure...  
JP2001349798A
To provide a pressure sensor in which the blocking of a pressure guide port is prevented, the bonding strength in the connection of a glass seat to a metal seat is improved, and the difference in bonding strength depending on solids is m...  
JP3263691B
To prevent a flow meter from being affected by temperature vibration of fluid and being damaged by fluid component in a device measuring fluid flow rate. A fluid passes through the main part 2 of the flow meter. In the main part 2, the p...  
JP3259102B
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...  
JP2001337003A
To provide an inspection method for vessel leakage for detecting leakage of an inspecting object by measuring very small pressure variation in a short time without being affected by temperature change.An inspecting object and vessels wit...  
JP2001330497A
To provide a liquid pressure sensor in which mounting work is easy and there is no possibility of liquid leakage from a tank.The liquid pressure sensor 10 is constituted of a housing 11 with an opening part and internal pressure chamber ...  
JP2001330529A
To provide a pressure sensor capable of accurately detecting a pressure without being affected by variations in temperature or external forces.This pressure sensor has a metal seating with a first pressure- introduction hole formed there...  
JP2001318015A
To surely wash an inside of an adaptor attaching member and a surface of a seal diaphragm in a measured pressure side, and to surely remove a foreign matter such as dust.The adaptor attaching member 50 is brought into close contact with ...  
JP2001318017A
To easily carry out attaching and detaching work for a cover in an atmospheric pressure side by simple structure, and to make dust, an insect and the like easily removed even when they come into an inside of the cover.The disklike cover ...  
JP2001318018A
To surely wash an inside of an adaptor attaching member and a surface of a seal diaphragm, and to remove a foreign matter such as dust.The adaptor attaching member 3 is fixed to one side face 9 of a transmitter body 2, and a pressure rec...  
JP2001318016A
To reduce the number of portions having the possibility of leakage in a tank, to reduce an insatallation cost, an instrumentation cost and a cost of a transmitter, and to enhance maintainability.In this differential pressure measuring in...  
JP2001289723A
To provide a highly reliable pressure detection device capable of being made small easily. This device is equipped with a housing 11 for forming therein fluid chambers 21A, 21B for introducing the fluid pressure from the outside, a press...  
JP2001275994A
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...  
JP3238001B
PURPOSE: To provide a composite sensor and a composite transfer device using it wherein maximum output is obtained at static pressure input and the effect of differential pressure is suppressed. CONSTITUTION: Static pressure gauges 23a-2...  
JP2001264204A
To provide a differential pressure measuring device capable of quickly and easily self-diagnosing leakage of a sealing liquid without removing the differential pressure measuring device from a measuting line.This differential pressure me...  
JP3233791B
PURPOSE: To accurately detect physical quantities and the like by providing an integrator setting the difference between the electrostatic capacitance of a detector corresponding to physical and chemical quantities of the detecting objec...  
JP2001242026A
To provide a pressure or differential pressure measuring cell having superior compression resistance and tension resistance and having highly vacuum airtightness and long-term stability.This capacity type pressure measuring cell is provi...  
JP2001242024A
To provide a body embedded type pressure sensor little affected by fluctuation of the embedded depth from the body surface of a patient and to provide a pressure detecting system and pressure adjustment system using it.The body embedded ...  
JP2001235388A
To provide a released gas measuring device capable of precisely measuring the quantity of released gas of an object to be inspected in a short time.The device is provided with a master chamber 1, a chamber 2 for containing an object 3 to...  
JP3223950B
PURPOSE: To prevent leakage of an encapsulated liquid due to corrosion by disposing a double stage gaskets between a pressure receiving capsule unit and a cover flange thereby preventing the outer atmosphere from intruding. CONSTITUTION:...  
JP3223501B
To reduce the load on a host device by determining the variation of a detected differential pressure signal from the differential pressure signal of one sampling period before, performing a primary delay operation to the variation, and o...  

Matches 551 - 600 out of 1,334