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Patent Searching and Data


Matches 851 - 900 out of 3,801

Document Document Title
JP2005114453A
To provide a differential pressure measuring system capable of maintaining a good pressure transmission characteristic without generating bubbles in sealed liquid.The differential pressure measuring system comprises a differential pressu...  
JP2005114167A
To provide a process seal for process control reducing force that is necessary for sealing.The process seal for the process control transmitter is provided. The seal includes a contact area providing a metal to metal seal with respect to...  
JP3671465B2
To attain measurement of blood pressure readily through the operating sense of an audio visual device by adding a blood pressure measurement function to the audio-visual apparatus. An operation section 3 is used to set the blood pressure...  
JP2005090451A
To provide a highly reliable differential pressure measuring device for accurately measuring differential pressure between the pressure of exhaust gas and the atmospheric pressure and avoiding the closure of an atmospheric opening due to...  
JP2005077097A
To provide a fluid leakage detector capable of detecting leakage of inert gas filled in a storage case of a high-voltage electric power source part in an inertia navigation system of an aircraft, and capable of preventing the inert gas i...  
JP2005069705A
To reduce cost by simplifying the constitution of a detector used for detecting both the differential pressure (P1-P2) between an upstream-side (high-pressure side) pressure P1 and a downstream-side (low-pressure side) pressure P2 of a r...  
JP3655978B2
To provide the certainty of a fire alarm by certainly prevent erroneous information at the time of momentary water passing in a flowing water control valve in a working valve type flowing water detecting device. The outside of a valve ma...  
JP3627766B2  
JP2005049245A
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 prelo...  
JP2005043198A
To provide a semiconductor differential pressure measuring device having an excessive pressure protection means and a damping means in a sensor chip.The semiconductor differential pressure measuring device is equipped with a recession wh...  
JP2005024382A
To provide a differential pressure measuring apparatus having a protection diaphragm with specified tension in the radial direction and sufficient corrosion resistance, and to provide a method for manufacturing the differential pressure ...  
JP3613005B2  
JP2005010021A
To provide a differential pressure transmitter accurately calculating a differential pressure between a high pressure side and a low pressure side generated by pressure receiving diaphragms, by providing a correction means for correcting...  
JP3633779B2
To reduce maintenance costs, by setting a boss part having one end fixed to a connection part of a pressure introduction tube to a diaphragm seal unit, a needle part connecting the diaphragm seal unit, and the pressure introduction tube,...  
JP2005003442A
To provide a differential pressure and pressure transmitter for normally measuring static pressure even if a protection mechanism operates by the occurrence of an excessive pressure and a differential pressure cannot be measured.High-pre...  
JP2004361159A
To provide a remote seal type pressure/differential pressure transmitter superior in property stability by solving property instability due to hydrogen discharged from constituent materials.A flange part 3a is divided into a part having ...  
JP2004354128A
To provide a differential pressure measuring apparatus capable of improving assemblability and operation characteristics and achieving a compact diaphragm for excessive pressure protection.A differential pressure measuring apparatus is p...  
JP2004313498A
To offer a respiration detector in which dust enters between a mobile electrode and a non-movable electrode with external air circulating through an external respiration detector to cause neither a glitch nor poor measuring, its measurem...  
JP2004294285A
To provide a ring for a differential pressure/pressure transmitter having a structure for performing highly accurate measurement by surely preventing foreign matter and deposit from sticking to a liquid-contacting diaphragm while prevent...  
JP2004294175A
To solve the problem that the blockage of a connecting pipe cannot be detected accurately since rise or fall components appear while being rocked when pressure and differential pressure are rising or falling.Three pressure or differentia...  
JP2004294253A
To provide an electrostatic capacity type pressure sensor, heightening the pressure sensitivity to an offset capacity, and performing high-speed operation.A movable electrode plate is disposed between a first fixed electrode plate 11 and...  
JP2004279091A
To prevent moisture from entering an atmospheric pressure introduction hole with an inexpensive configuration in a pressure sensor for introducing an atmospheric pressure into a case for accommodating a sensor element for detecting press...  
JP2004271501A
To provide an ultra-precise minute differential pressure measuring device capable of precisely and continuously measuring a minute differential pressure and significantly reducing the manufacturing cost with a simple structure by transmi...  
JP2004528527A
The spectrum diagnostic method in electromagnetic flowmeter is offered. [Solution means] in the coil (48) of 送流管 (22, 42) which conveys a liquid (21), It is an electromagnetism flow transmitter (20) which gives the coil driver outp...  
JP2004528576A
[Subject] The pressure sensor which has long-term stability and high sensitivity is offered. [Solution means] the high sensitivity pressure sensor which has long-term stability, The housing which has the 1st chamber and 2nd chamber, and ...  
JP2004251675A
To provide a connecting tube structure obtained by noticing that installing two differential-pressure connecting tubes outside an exhaust tower satisfies their functions through ensuring that temperature difference between gases due to t...  
JP2004526163A
The chamber inside a housing leads to the circumference of the housing with a gas exchange path. It is hydrophobicity and/or the nano porosity material which was able to give hydrophobicity is placed by the gas exchange path. The chamber...  
JP2004524545A
In a difference pressure sensor, measured value is rectified using the help of the nominal pressure NP. Thereby, the influence on the measured value produced for change of the hardness of modification of the main part of a difference pre...  
JP3552730B2  
JP3583347B2
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...  
JP2004212220A
To make the direction of a detecting part freely changeable in addition to the directions of a transmission part and a meter, in response to the condition in an installed field.A pair of pressure introducing covers 12 for holding both si...  
JP2004203401A
To provide a monitoring method which can more carefully and correctly monitor a pressure state in a sterile chamber than a conventional method by visual inspection.A differential pressure transmitter 8 for outputting an electric signal a...  
JP2004198277A
To make a differential pressure measuring device less expensive by estimating a temperature of an object to be measured by using a built-in temperature sensor and eliminating the need to arrange another temperature sensor on the outside ...  
JP2004184167A
To accurately detect air pressure inside a duct even in fire occurrence, and to enhance thereby reliability for control of pressurized air.This device is provided with pressure sensors 10, 11 for detecting the air pressures in a pressuri...  
JP2004177280A
To provide a differential pressure measurement system capable of easy attachment or detachment while capable of preventing a differential sensor from being damaged owing to an artificial mistake.The measurement system is provided with: t...  
JP3566178B2
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...  
JP2004517305A
The present invention is equipped with a base substance (1, 23, 25) and the film (5, 27) connected to this base substance (1, 23, 25), and relates to the pressure measurement cell which forms a measurement room (3, 29, 31) by these. At t...  
JP2004516454A
A sensor element (1) and two pressure measurement rooms (2, 3) which adjoined this sensor element (1), respectively, In the differential pressure detector which has two 受 pressure rooms (22, 23) closed by the separation diaphragm (21, ...  
JP2004144491A
To provide a differential pressure/pressure detector capable of measuring differential pressure and static pressure concurrently, and a differential pressure transmitter for diagnosing jamming of a connecting pipe using the detector.A th...  
JP2004132698A
To provide a differential pressure/absolute pressure converter for accurately and rapidly performing load lock control.In the converter 10 and its conversion method, where an absolute pressure sensor for detecting an absolute pressure in...  
JP2004132817A
To solve the problem that clogging of a conduit in all modes of high-pressure and/or low-pressure sides is not accurately detected when the clogging of the conduit is detected based on the magnitude of calculated variance value and corre...  
JP3548604B2
PURPOSE: To accurately distinguish the direction of a stud bolt by the difference of the length of the screw part on both sides of the stud bolt. CONSTITUTION: The air 8 of an air supply source 9 is sprayed to the shaft part 1a of a stud...  
JP3545855B2
To provide a method for easily and correctly measuring a hermeticity of a building in an inhabited state. While an opening part 2 of a building 1 is opened, a ventilation fan 12 is driven and a minute differential pressure sensor 11 is s...  
JP2004117086A
To provide a low-cost differential pressure measurement device, having a miniaturized excessive pressure protective diaphragm.The differential pressure measurement device includes a high-pressure side pre-weighting diaphragm, a low-press...  
JP2004108868A
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...  
JP2004108848A
To provide an oscillation type sensor detection circuit having no trouble factors for converting it into an ASIC by minimizing current/voltage converting operation and mainly using computing operation with a current signal for simplifyin...  
JP2004109031A
To provide a differential pressure measuring system having the function of easily detecting abnormality of a liquid contact diaphragm for detecting the pressure of a process.The differential pressure measuring system comprises a diaphrag...  
JP2004093237A
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 si...  
JP2004085354A
To precisely measure, with a simple constitution, a flow velocity and a pressure (static pressure) of a flow in a non-steady state in which a pressure wave, a turbulent flow, or the like is generated.The piping network monitoring system ...  
JP2004077339A
To provide a differential pressure measuring instrument without variations with the lapse of time, in which there is no need for repair or physical calibration even when immersed in a shield liquid.The differential pressure measuring ins...  

Matches 851 - 900 out of 3,801