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Patent Searching and Data


Matches 851 - 900 out of 1,321

Document Document Title
JP08166309
PURPOSE: To obtain a differential-pressure measuring apparatus by which the clogging of a connecting pipe can be detected, whose reliability is high and whose maintenance and inspection operation is easy by a method wherein the output si...  
JP08159903
PURPOSE: To obtain a differential-pressure detector in which a zero point is not drifted and which comprises a metal diaphragm used to detect the differential-pressure of a conductive fluid by forming an electrically insulating substance...  
JP08136386
PURPOSE: To detect the clogging of a pressure introduction pipe by an apparatus easy to maintain and improve the pressure-measuring reliability, by detecting a clogging state of one or both of the pressure introduction pipes from the cor...  
JP08136382
PURPOSE: To improve static pressure characteristics. CONSTITUTION: The outer peripheral surface of a conventional cylindrical insulating body except both end parts is engraved shallowly. A thin cylindrical space 70a is formed in this man...  
JP08128911
PURPOSE: To diagnose the abnormality of a sensor so as to improve the reliability of a device by providing the sensor possessing sensibility mainly to a static pressure on a semiconductor chip, and comparing its measured signal with a st...  
JP08094474
PURPOSE: To facilitate the manufacture by forming a porous ceramic film having high hardness on the pressure receiving side face of a detector body while protecting the seal diaphragm against undue pressure and preventing the overload hy...  
JP08082566
PURPOSE: To enable self-test for leakage of sealing liquid and entrance of hydrogen gas into the sealing liquid without removing a differential pressure measurement device from measurement line by providing a storage circuit which stores...  
JP08075583
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...  
JP08075584
PURPOSE: To reduce the cost of a device and to improve reliability by using a built-in uniform-pressure mechanism consisting of a uniform-pressure path, a connecting hole, a gate valve, and a stop valve for performing zero-point check. C...  
JP08073024
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...  
JP08062266
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...  
JP08050070
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...  
JP08043223
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...  
JP08043229
PURPOSE: To prevent electrochemical corrosion of a diaphragm by not forming any electric circuit between the diaphragm and a cover. CONSTITUTION: A seal diaphragm 6 and cover 20 which protects the diaphragm 6 are electrically insulated f...  
JP08043225
PURPOSE: To generally solve the problem of short circuit by providing a thin insulating layer formed of a ceramic material or a heat resisting glass of a base on a glass layer covering an electrode of the base. CONSTITUTION: A first meta...  
JP08043230
PURPOSE: To prevent intrusion of hydrogen atoms into an sealing liquid after the atoms are diffused and permeate into a diaphragm by reducing or preventing the occurrence of the hydrogen atoms due to a local battery formed between a diap...  
JP08043228
PURPOSE: To prevent the hysteresis of a diaphragm from becoming larger due to stresses concentrated to the fulcrum section of the diaphragm. CONSTITUTION: Ceramic films 31 and 32 are respectively formed on both surfaces of the fulcrum se...  
JP08043222
PURPOSE: To suppress the variation of the zero point of a seal diaphragm and, at the same time, to prevent the breakage of the diaphragm by providing the components of a pressure transmitter by taking the center of gravity of the transmi...  
JP08035901
PURPOSE: To obtain a diagnostic apparatus by which a fault part is discriminated without removing a differential-pressure detector by providing a function or the like which discriminates the kind of a fault on the basis of the response c...  
JP08021776
PURPOSE: To prevent a fluid to be detected from flowing out from a package when a gauge is broken, by storing a detection gauge for detecting a low pressure of a gas in a plastic package and a detection gauge for detecting a high pressur...  
JP08015068
PURPOSE: To prevent a sticking phenomena wherein a measuring diaphragm is stuck to a fixing electrode opposed thereto in the central section thereof when it receives a great differential pressure. CONSTITUTION: Small projection sections ...  
JP08011793
PURPOSE: To predict wing collapse in advance on behalf of a pilot to generate an alarm by detecting effective ram pressure from the difference between detected atmospheric pressure and ram pressure in a wing, and generating an alarm in t...  
JP08005491
PURPOSE: To provide a pressure sensor which can output the small differential pressure fluctuation value from rated pressure, separately from the gauge pressure value of measure-target equipment, as the output of a sensor. CONSTITUTION: ...  
JP08005489
PURPOSE: To secure pressure resistance and explosion proof and besides, make possible downsizing by attaching an indicator case to an amplifier case, in close vicinity to an amplifier part, and taking in wiring directly from the amplifie...  
JP08005492
PURPOSE: To reduce the cost and improve the accuracy by attaching a cover flange connection to a cover flange part in place of at least one piece of cover flanges. CONSTITUTION: A level gauge unit 11 is attached to a cover flange part 3 ...  
JP08005490
PURPOSE: To provide a pressure difference detector, which is simple in structure and used for ON-OFF operation or is also applicable to a measure of quantitative pressure difference detection, by detecting the displacement in the cylinde...  
JP07325001
PURPOSE: To provide a liquid pressure measuring sensor with its minimized pressure error, high reliability, high rigidity, high durability, and excellent air tightness. CONSTITUTION: A liquid pressure measuring sensor comprises a diaphra...  
JP07311110
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...  
JP07311111
PURPOSE: To easily protect a formed film part for detecting differential pressure and prevent the formed film part from being affected by the expansion due to temperature increase of a protective member so as to enhance high differential...  
JP07311109
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...  
JP07306106
PURPOSE: To provide the structure, wherein the compact configuration, the light weight and the low cost are achieved and the welded place of a contact part with a sealed liquid is not in contact with the external air. CONSTITUTION: In th...  
JP07306107
PURPOSE: To measure the absolute value of pressure without a temperature sensor and a temperature correcting sensor and without the effect of temperature change. CONSTITUTION: One surface of a signal-crystal silicon substrate is etched, ...  
JP07294355
PURPOSE: To prevent the destruction of pressure sensing element due.to adhesion of dust, mad, water, etc., to the pressure sensing element, prevent the lowering of measuring accuracy and prevent the discharge of measured pressure medium ...  
JP07286926
PURPOSE: To provide a high-withstand-pressure, and low-differential-pressure switch which is small and inexpensive, for detecting a low differential pressure and sampling it as a switching signal by directly comparing high fluid pressure...  
JP07280678
PURPOSE: To form a compact switching/displaying deivce of building block principle which can be easily assembled, and has durability to the high pressure, and cost effective, by partitioning various kinds of pressure bands by a roller di...  
JP07280685
PURPOSE: To prevent the adheson of high-temperature fine powders on an opening section opened into a high-temperature fine-powder flow path at one end of a drawing pipe without requiring a special device and labor hours. CONSTITUTION: A ...  
JP07270265
PURPOSE: To obtain a draft gage enabling correct measurement of a differential pressure even in a strong wind. CONSTITUTION: A first takeout nozzle 12 of a draft gage 10 is installed outside a heating furnace so as to take out the atmosp...  
JP07260613
PURPOSE: To shorten the time required for depositing a film by decreasing the number of deposition steps and while preventing diffusion and permeation of hydrogen atoms and hydrogen fragility of a diaphragm. CONSTITUTION: A ceramic insul...  
JP07260614
PURPOSE: To provide a durable and precise pressure sensor detecting an accurate pressure over a wide temperature range. CONSTITUTION: A pressure sensor 100 is provided with a housing 200 provided with a fluid port 240 through which the f...  
JP07260612
PURPOSE: To block or reduce permeation of hydrogen through a diaphragm by applying a coating of chromium oxide, titanium nitride or boron nitride to the surface of the diaphragm. CONSTITUTION: The pressure transmitter comprises recessed ...  
JP07243931
PURPOSE: To provide a high-accuracy, small-sized fine differential pressure sensor by providing a moving electrode formed at the center position of a diaphragm of which periphery section is fixed to a housing, a fixed electrode formed to...  
JP07243930
PURPOSE: To provide an installation mechanism of a differential pressure transmitter improving a valve unit for installation and facilitating the switching between the differential pressure measurement and zero point adjustment. CONSTITU...  
JP07229806
PURPOSE: To suppress variation of span due to tightening of a cover flange without increasing the size by providing a seal ring and the body with inclination. CONSTITUTION: The seal ring 20a and the body 1a are inclined by such a extent ...  
JP07229805
PURPOSE: To provide a pressure/differential pressure measuring apparatus in which the indication error or the temperature characteristics are prevented from deteriorating due to generation of bubble in an encapsulated liquid. CONSTITUTIO...  
JP07229807
PURPOSE: To provide a differential pressure measuring apparatus with an overpressure preventive mechanism in which pressure loss due to movement of a liquid separation diaphragm is prevented through a simple structure while suppressing t...  
JP07225167
PURPOSE: To obtain a differential pressure detector which can judge the abnormality within a detector by providincj a pressure buffer member between a reference pressure introduction port and a reference pressure chamber for relaxing the...  
JP07225168
PURPOSE: To obtain a differential type pressure sensor which can be handled easily and is not affected by external force and noise for measurincj the pressure difference between two points and the alternate frequency. CONSTITUTION: A pie...  
JP07218367
PURPOSE: To provide a differential pressure measuring apparatus in which no plastic deformation occurs in a central diaphragm even if the apparatus has an excess pressure preventing function at a high pressure difference and which has sm...  
JP07218368
PURPOSE: To provide a differential pressure measuring apparatus in which weldability is improved and which has no characteristic error due to friction, hysteresis, etc. CONSTITUTION: The differential pressure measuring apparatus comprise...  
JP07209120
PURPOSE: To prevent product damage and keep safety by protecting a capillary tube, and constituting a liquid-contact part to be adapted the process connection. CONSTITUTION: For sealant, silicone oil or fluorine-based oil with large comp...  

Matches 851 - 900 out of 1,321