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JP2006030098 |
To simplify calculation of determining a constant constituting a function f(P) previously in calibration and to reduce labor of the calibration, in a pressure measuring device that detects sensor capacitances C1(P) and C2(P) varying diff...
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JP2006023109 |
To prevent the occurrence of oscillation ripples as much as possible and reduce output errors due to the oscillations in a differential pressure detection type pressure sensor in which both pressure receiving surfaces of a pressure detec...
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JP3758001 |
To attain a minimum disturbed flow in an eddy chamber and further make a minimum releasing of counter-flow of air containing smoky fog by a method wherein an amount of air flowing to a discharging system through a bypass passage is chang...
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JP3758185 |
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, ...
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JP2005331252 |
To provide a protector for protecting an apparatus from entrance of foreign matter capable of easily attaching/detaching to the apparatus and capable of protecting from the entrance of insect or grit into the opening of the apparatus at ...
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JP2005330935 |
To predict the life of a hydraulic pump by detecting the sign of pump rupture before the hydraulic pump is ruptured.The delivery pressure 122 of the hydraulic pump, an oil temperature 126, and drain filter pressure difference 120 are det...
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JP2005315890 |
To expand and improve a function, reliability and convenience, starting from a micromechanical sensor for detecting at least the first pressure of the first medium having at least one substrate 100 comprising a semiconductor material, an...
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JP2005292911 |
To provide a low-cost and easy-to-maintain electropneumatic converter or valve positioner.The electropneumatic converter or valve positioner comprises differential pressure measuring means for measuring a correct gauge pressure by differ...
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JP2005291740 |
To implement a differential pressure measuring apparatus in which the temperature characteristics of a wetted part are improved.The differential pressure measuring apparatus provided with a wetted diaphragm having one surface side in con...
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JP2005283447 |
To provide a pressure sensor capable of preventing water and dust from intruding into a pressure sensor inner space, by a simple constitution, and allowing inexpensive production.This pressure sensor is provided with an electric wire ins...
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JP2005274265 |
To actualize a low-cost flow meter for directly detecting a flow rate by solving a problem on a flow meter depending on conventional art.This flow meter uses one differential pressure gage using metallic diaphragms and an orifice 6 excha...
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JP2005274501 |
To provide a pressure detector that can simply diagnose the occurrence of jamming of a high-pressure side connecting pipe and a low-pressure side connecting tube, and to provide a jamming diagnosing method thereof.The pressure detector c...
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JP2005257498 |
To electrically shield a circuit section from external noises, while using an inexpensive structure of a pressure sensor, in which a sensing element for detecting pressures receives a pressure to be measured via a conductive diaphragm.Th...
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JP3722037 |
To simplify assembly configuration in a pressure sensor device constituted by assembling a sensor element for detecting pressure on a circuit board. This pressure sensor device is provided with the circuit board 10, the sensor element 20...
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JP3718847 |
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 press...
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JP2005249515 |
To prevent a wire connected with a sensor and a diaphragm from contact causing generation of a short circuit as much as possible, in the pressure sensor of a differential pressure measurement system for measuring the pressure via a diaph...
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JP3714414 |
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 differentia...
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JP3711556 |
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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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,...
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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...
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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 ...
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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...
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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...
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