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Patent Searching and Data


Matches 901 - 950 out of 3,718

Document Document Title
JP3344138B2
PURPOSE: To obtain a semiconductor composite sensor in which each semiconductor region keeps a unique potential by providing a semiconductor region, surrounding more than one piezoresistance, for every piezoresistance and arranging the s...  
JP2002527704A  
JP2002236084A
To provide a method and device for measuring the concentration of mixed suspended matter with high measurement accuracy and a wide measuring range, capable of real-time and continuous measurement and is easy to maintain and manage.In the...  
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 ...  
JP3318804B2
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...  
JP3314349B2
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...  
JP3314538B2
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...  
JP3309577B2
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...  
JP3309583B2
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...  
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...  
JP3307538B2
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...  
JP3305800B2
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 ...  
JP2002513148A  
JP3299715B2
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...  
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...  
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 ...  
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...  
JP2002504676A  
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...  
JP3271470B2
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 ...  
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, ...  
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...  
JP2002501621A  
JP3247379B2  
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...  
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...  
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...  
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...  
JP3263691B2
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...  
JP3259102B2
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...  
JP2001525539A  
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...  
JP2001523814A  
JP3233404B2  
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...  
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 ...  
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 ...  
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...  

Matches 901 - 950 out of 3,718