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Patent Searching and Data


Matches 551 - 600 out of 1,319

Document Document Title
JP2002090470
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,...  
JP2002090246
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...  
JP2002071491
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 ...  
JP2002071494
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...  
JP2002062210
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...  
JP2002048665
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...  
JP2002031578
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...  
JP3271470
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 ...  
JP2002022581
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 ...  
JP2002022587
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...  
JP2002022585
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...  
JP2002022586
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, ...  
JP2002005771
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...  
JP2002005767
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...  
JP2002005769
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...  
JP2001349798
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...  
JP3263691
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...  
JP3259102
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...  
JP2001337003
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...  
JP2001330497
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 ...  
JP2001330529
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...  
JP2001318015
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 ...  
JP2001318017
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 ...  
JP2001318018
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...  
JP2001318016
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...  
JP2001289723
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...  
JP2001275994
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...  
JP3238001
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...  
JP2001264204
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...  
JP3233791
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...  
JP2001242026
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...  
JP2001242024
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 ...  
JP2001235388
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...  
JP3223950
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:...  
JP3223501
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...  
JP3220346
PURPOSE: To provide a highly reliable pressure sensor having a highly accurate detecting characteristic regardless of a temperature cycle and high static pressure. CONSTITUTION: Since the outside diameter of a post 12a is smaller than th...  
JP2001215118
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 ...  
JP2001208629
To provide a differential pressure measuring instrument with an improved hydrogen infiltration preventing characteristic.This differential pressure measuring instrument is equipped with liquid-separating diaphragms and liquid-contacting ...  
JP2001208631
To provide a differential pressure measuring device capable of reducing a production cost and providing a low-price by a simple construction and a reduction of component numbers.A differential pressure measuring device comprises a seal d...  
JP2001208630
To provide an easy-to-reuse and eco-friendly differential pressure measuring instrument.This differential pressure measuring instrument is equipped with liquid-separating diaphragms and liquid-contacting diaphragms. The liquid- separatin...  
JP2001208632
To provide a differential pressure measuring device which is easily reused and friendly to global environment.This differential pressure measuring device comprising liquid- separating diaphragms which are each provided at both sides of a...  
JP2001208624
To provide a method and an instrument for pressure measurement capable of accurately measuring pressure in a pit-type tan by using a differential pressure type pressure gage.Compressed air with a pressure slightly higher than the pressur...  
JP2001194142
To provide a new water level difference measuring apparatus using an optical fiber, making it possible to compare water level differences at two points easily and advantageously in terms of system construction. Water is introduced into f...  
JP2001174353
To protect a pressure measuring cell against interference in a pressure measuring device having a casing and the pressure measuring cell arranged in it.This pressure measuring cell is provided with a converter for converting the displace...  
JP3205324
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 prov...  
JP3205327
To prevent actually the shift of a zero point from occurring at relative humidity which reaches the vicinity of a saturation limit. This sensor is provided with both a diaphragm 11 having a surface to which a first electrode 4 is mounted...  
JP3205325
To provide a capacitative pressure sensor or a capacitative differential pressure sensor that manufactures an electrode by a method being different from the silk screen printing method or sputtering. The sensor includes a substrate 1 wit...  
JP2001176721
To solve the problem where proper flow rate for freezing mixture cooling a superconducting coil, in which conventionally since the ratio between gas phase and liquid phase of freezing mixture flowing in a superconducting coil is unknown,...  
JP3199103
PURPOSE: To provide a differential pressure measuring device which has enhanced input/output hysteresis characteristics and excessive pressure hysteresis characteristics. CONSTITUTION: The differential pressure measuring device is equipp...  
JP3196088
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...  

Matches 551 - 600 out of 1,319