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Patent Searching and Data


Matches 401 - 450 out of 1,305

Document Document Title
JP2005227137
To provide a differential pressure transmitter which will not reduce the resistance to pressure for differential pressure even when thermal strain on a block section is not permitted to be transmitted to a detection element, by increasin...  
JP3709985
To provide an inexpensive device for measuring differential pressure which has a detection function for an anomaly of a pressure part such as failure of liquid-contact diaphragms or permeation of gaseous hydrogen into a pressure room. Th...  
JP2005221350
To provide a process connector capable of easily replacing the main body or receiving maintenance of a differential pressure measuring device.The process connector is provided with a communication hole on one side, and a pressure receivi...  
JP2005207743
To provide an inexpensive differential pressure measuring instrument of stable characteristic.This differential pressure measuring instrument is provided with high pressure side and low pressure side seal diaphragms provided in a body, a...  
JP2005194943
To provide a pressure detection device for controlling an engine and its method excellent in stability of a circuit and common noise resistance, for integrating a filter function without an additional operational amplifier.The pressure d...  
JP3693890
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 piez...  
JP2005172432
To compactify an element dimension of a micro structure used as various kinds of sensors such as a pressure sensor, and used as a flow passage for a micro sample in an analytical equipment or the like.This micro structure is provided wit...  
JP2005173931
To decide a user condition from performance at the time of an input operation by the user.With the provision of a detection section for detecting a key stroke speed and key stroke intensity, an impatience condition of the user is detecte...  
JP3687647
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 pressur...  
JP3687656
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...  
JP2005156307
To prevent a sealing ring from being omitted or damaged at the its attachment it to a measurement member, regarding a pressure sensor which is constituted, such that the pressure sensing part housed in the case is introduced with the pre...  
JP3680313
To provide an inexpensive differential pressure measuring apparatus with improved resistance to corrosion. The differential pressure measuring apparatus is provided with a seal-diaphragm-protruded diaphragm unit provided with a protruded...  
JP3679477
To improve the execution property of a flowing water detecting device at the site and save the space and reduce the cost by miniaturizing it. A control valve 30 is constituted of a control valve main body 30A integrally formed with a fla...  
JP2005127876
To provide a measuring device such as a leak tester capable of guaranteeing measurement accuracy, while reducing a user load, preventing surely a failure, and thereby reducing repair cost.The leak tester is equipped with a measuring syst...  
JP2005120839
To improve durability by restraining influence of condensed water in pressure transmission pipes 40, 41 and making the influence of heat and vibration of an engine 1 hard to be exerted, in a device for detecting the exhaust pressure from...  
JP2005114453
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...  
JP3671465
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...  
JP2005114167
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...  
JP2005114734
To provide a pressure sensor for detecting a pressure level of a pressure medium.The pressure sensor comprises both high pressure side and low pressure side. A seal for sealing the high pressure side from the low pressure side is placed ...  
JP2005090451
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...  
JP2005077097
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...  
JP2005069705
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...  
JP3655978
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...  
JP2005049245
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...  
JP2005043198
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...  
JP2005024382
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 ...  
JP2005010021
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...  
JP3633779
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,...  
JP2005003442
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...  
JP2004361159
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 ...  
JP2004354128
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...  
JP2004313498
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...  
JP2004294175
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...  
JP2004294253
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...  
JP2004294285
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...  
JP2004279091
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...  
JP2004271501
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...  
JP2004251675
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...  
JP3583347
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...  
JP2004212220
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...  
JP2004203401
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...  
JP2004198277
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 ...  
JP2004184167
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...  
JP2004177280
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...  
JP3566178
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...  
JP2004144491
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...  
JP2004132698
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...  
JP2004132817
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...  
JP3548604
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...  
JP3545855
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...  

Matches 401 - 450 out of 1,305