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Patent Searching and Data


Matches 851 - 900 out of 1,334

Document Document Title
JP08219917A
PURPOSE: To simplify the structure by interposing an insulation member having a through hole for lead between a differential pressure detecting part and a dielectric sealing part for passing the lead provided at the outer circumferential...  
JP08219916A
PURPOSE: To obtain a method for detecting the pressure of fluid to be detected from the loss distribution of an optical fiber by using OTDR in which the pressure variation due to temperature variation of the fluid can be detected separat...  
JP08219918A
PURPOSE: To enhance the reliability of protective function by providing a shallow columnar space cut in right angle from the inner circumference at the planar ring part of a flange, and a conical inner space for encapsulating a pressure ...  
JP08204209A
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...  
JP08201206A
PURPOSE: To simplify instrumentation, to enhance the reliability and to prevent a misoperation in the zero-adjustment by a method wherein a measurement differential pressure is detected by a differential pressure-measuring device body in...  
JP08193904A
PURPOSE: To prevent a measuring diaphragm and a fixed electrode disposed oppositely thereto from being seized in the center thereof upon reception of an undue differential pressure. CONSTITUTION: Cylindrical recesses 9a are distributed a...  
JP08189871A
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...  
JP08184518A
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:...  
JP08184519A
PURPOSE: To sustain ventilation and waterproofness at a port opened to the atmosphere even for severe outer environment. CONSTITUTION: The pressure sensor comprises a housing 1 having a port 11 opened to the atmosphere, a pressure sensor...  
JP08178805A
PURPOSE: To detect failure of a check valve based on the flows of a fluid before and after the check valve in a system for supply water directly from a main pipe of city water to a high-rise building or the like. CONSTITUTION: In a syste...  
JP08178783A
PURPOSE: To enable the preventing of the destruction of a sensor by providing a pressure receiving chamber with a deformation member for changing the volume of the inside of the pressure receiving chamber by a differential power or a pre...  
JP08178782A
PURPOSE: To improve the reliability of the measurement of a pressure and the facilitating of maintenance by enabling the judging of clogging of a lead pipe accurately by comparing a measured differential pressure measured by a differenti...  
JP08166308A
PURPOSE: To obtain a differential-pressure transmission apparatus in which a transmission-part side is separated easily from a pressure-receiving-part side in a maintenance and inspection operation or the like by a method wherein a bolt ...  
JP08166309A
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...  
JP08159903A
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...  
JP08136386A
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...  
JP08136382A
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...  
JP08128911A
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...  
JP08094474A
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...  
JP08082566A
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...  
JP08075583A
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...  
JP08075584A
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...  
JP08073024A
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...  
JP08062266A
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...  
JP08050070A
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...  
JP08043223A
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...  
JP08043229A
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...  
JP08043225A
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...  
JP08043230A
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...  
JP08043228A
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...  
JP08043222A
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...  
JP08035901A
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...  
JP08021776A
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...  
JP08015068A
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 ...  
JP08011793A
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...  
JP08005491A
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: ...  
JP08005489A
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...  
JP08005492A
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 ...  
JP08005490A
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...  
JP07325001A
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...  
JP07311110A
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...  
JP07311111A
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...  
JP07311109A
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...  
JP07306106A
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...  
JP07306107A
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, ...  
JP07294355A
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 ...  
JP07286926A
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...  
JP07280678A
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...  
JP07280685A
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 ...  
JP07270265A
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...  

Matches 851 - 900 out of 1,334