Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 851 - 900 out of 3,778

Document Document Title
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...  
JP3521322B2
To obtain a differential-pressure measuring apparatus which is assembled easily and whose costs can be lowered by a method wherein the step part of a pressure-receiving part is formed to be a ring shape between the inside resistance-weld...  
JP2004053296A
To provide a pressure measuring apparatus for discharging gaseous hydrogen without causing a loss or fouling up a pressure receiver due to a leak of an internal filler liquid when a filler liquid inlet is opened.A filler liquid inlet 34 ...  
JP2004053603A
To solve the prior art problem wherein the non-linearity of an output characteristic curve of a pressure sensor cannot be removed by a conventional method of determining the place(s) of one or more diaphragm compensation resistor(s).The ...  
JP2004044585A
To provide a method and a device for determining the length of the residual effective service life of an oil filter of an engine.An operator is informed of a service life state of the oil filter by monitoring the oil filter service life....  
JP2004037307A
To provide a liquid level detecting remote sealed differential pressure transmitter for detecting an accurate liquid level without a bad influence received from a surrounding environment of an installed location.The liquid level detectin...  
JP2004028704A
To provide an apparatus for measuring differential pressure, which is improved in zero drift caused by plastic deformation remaining in a protection diaphragm after applying excessive pressure thereto, by controlling stress produced in t...  
JP2004020524A
To provide a differential pressure transmitter for determining a flow rate without finding out a differential pressure range by computing the differential pressure.The differential pressure transmitter comprises a differential pressure m...  
JP2004012392A
To provide a differential sensor for detecting a differential pressure by measuring a displacement of a spool which is moved by the differential pressure, and excellent in small size, simple constitution, high precision, reliability, dur...  
JP2003344207A
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...  
JP2003337076A
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 pressu...  
JP2003337053A
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 a...  
JP2003534529A
(57) The beam for sapphire pressure sensors which has summary money germanium isolation brazing combination is offered. Solution means The pressure sensor capsule which has a main part of a beam form sensor consists of a junction layer (...  
JP2003534543A
(57) The short circuit diagnostic method in summary electromagnetic flowmeter is offered. Solution means Electromagnetic flowmeter equipped with the diagnosing circuit (122, 182) which detects the current which leaks from the electrode (...  
JP2003315193A
To provide a pressure sensor that is suitable for use in a severe environment to detect the pressure of exhaust gas or the like.The pressure sensor comprises a case 10 having a first recessed portion 11a in one surface and a second reces...  
JP2003270071A
To solve the problem that the expansion and contraction of only a partial incompressible sealing liquid become a pressure measurement error caused when only a part of capillary tube is exposed to direct sunlight or wind depending upon th...  
JP2003254847A
To provide a differential pressure detector which can approximately equalize a first-pressure side sealing liquid and a second-pressure side sealing liquid in quantity without making each member of a detecting element larger, and enables...  
JP2003254846A
To provide a differential pressure detector which prevents influence of tightening when the detector is assembled, and prevents a change in the output of a measured value.A sealing liquid for high pressure and a sealing liquid for low pr...  
JP2003240659A
To provide a differential pressure identification device with high practicality since a price is low and the applicable place is not limited, and not producing working error caused by the accumulation of dust, in a facility having a plur...  
JP2003227770A
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, ...  
JP2003222563A
To provide a pressure receiving part of an easily workable construction in the case of a differential pressure transmitter of a construction wherein an excessive pressure is detected by using an excessive pressure protecting diaphragm.Th...  
JP2003214969A
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 differential...  
JP2003522943A
(57) A summary optical pressure sensor is offered. Solution means the pressure sensor (10) constituted so that impression pressure might be perceived, The diaphragm constituted so that it might be combined with a diaphragm support medium...  
JP2003522942A
(57) A summary oilless difference pressure sensor is offered. Solution means The pressure sensor for pressure difference measurement between the 2 fluid which does not need isolation fluid (10) is formed. A pressure sensor has a perimete...  

Matches 851 - 900 out of 3,778