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JP09138170 |
To obtain an absolute pressure measuring apparatus in which the absolute pressure can be measured without requiring any absolute pressure sensor while enlarging the measurable range within the pressure limit. In order to convert the pres...
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JP09133599 |
To facilitate the manufacture of a pressure measuring apparatus while solving the problem incident to the usage thereof. An ambient pressure sensor 23a detects the pressure difference P2-P1 between the atmospheric pressure P2 and the pre...
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JP09126923 |
To relax the stress at the time of static pressure change and at the time of temperature change, to decrease the amount of zero shift furthermore, and to perform highly accurate differential pressure measurement in high sensitivity by pr...
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JP09126931 |
To obtain an inexpensive differential pressure converter for measuring the difference of pressure levels, both of which are not required to be the atmospheric pressure level, by forming a chamber and the like in a plastic molded housing....
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JP09126930 |
To shorten the length of a capillary tube and to achieve the reduction of the amount of members, setting spaces and the like, and the reduction of measuring errors by fixing a remote-sealing-diaphragm type differential pressure transmitt...
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JP09113394 |
To reduce permeation of hydrogen through a diaphragm by providing an intermediate layer composed of any one or a plurality of aluminum, copper, platinum and gold in the diaphragm while spreading substantially in parallel with the surface...
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JP09113395 |
To prevent a tensile stress or a bending stress from being generated in the welding part of a capillary tube and at the same time to prevent salinity from entering. The end of a capillary tube 2 is connected to the end surface of the one...
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JP2631052 |
PURPOSE: To prevent the intrusion of air, water, etc., into a stealing liquid by sealing a pipe for enclosing the sealing liquid while the inside of a detector body is maintained in a vacuum state by connecting one end of the pipe to an ...
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JP09101222 |
To provide a pressure transmitter in which the machining and assembling work is facilitated at the coupling part, especially the coupling part to be sealed hermetically. The pressure transmitter for sealing means comprises a pressure rec...
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JP09096580 |
To make it possible to perform a highly accurate differential-pressure measurement and to achieve a compact configuration and a low cost by linking the respective central parts of a main diaphragm, a high-pressure-side secondary diaphrag...
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JP09088930 |
To provide a fixing structure of a shaft part by which a shaft part can be firmly fixed by preventing a crack and a rupture of the shaft part by stress concentration. A fixing structure of a shaft part is composed of a body 1 in which a ...
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JP09083892 |
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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JP09072767 |
To detect flow rate with high accuracy for a long term using a vibration sensor for fluid which can sustain the detection characteristics for a long term without requiring any adjustment. The flexure detecting section 6 of a flexure dete...
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JP2615532 |
PURPOSE: To obtain a zero point correcting method which is effective to correct not only the movement of a zero point resulting from the temperature change, but the movement of the zero point due to the pressure applied in common to both...
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JP09054007 |
To reduce the cost of a differential pressure measuring apparatus by installing a high pressure side and a low pressure side diaphragm seals on both side faces of a diaphragm seal body and housing a high pressure side and a low pressure ...
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JP09043085 |
To prevent an atmospheric pressure introduction hole from being clogged by a water screen. A reference pressure chamber 8 into which an atmospheric pressure is introduced, a measurement pressure introduction chamber 9 into which a pressu...
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JP09043083 |
To provide a capacitance-type pressure sensor wherein linearity in input/output characteristics is good, the sensor is compact but highly sensitive, and a measurement range is wide. A periphery of a diaphragm 2 is supported by a base 1, ...
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JP09043082 |
To suppress a change in zero point of an overload protecting diaphragm especially due to high pressure and a change in zero point due to deformation of a pressure receiving member. Chambers 17, 18 for receiving pressure of measured fluid...
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JP09042661 |
To provide a flame-detecting apparatus capable of judging a combustion state with high reliability even when combustion air flows at a high speed. In a flame-detecting apparatus for determining combustion state of a burner 2 which is sup...
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JP09043084 |
To fix a sensor chip comprising a pressure sensitive element coupled to a glass seat to a housing while a fluctuation in characteristics of the pressure sensitive element is prevented. A seat 25 of a sensor chip 23 is bonded to a stem 28...
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JP09033374 |
To improve static pressure and temperature characteristic by providing 1st to 4th measuring chambers for forming diaphragms in a semiconductor substrate, first and second sensors for allowing the 3rd and 4th measuring chambers the to com...
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JP09033373 |
To effectively remove a high frequency component from a reference side area pressure inputted to a differential pressure measuring part. In the differential pressure measuring device having a reference pressure input part (a) for inputti...
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JP09005194 |
PURPOSE: To shorten a capillary tube, improve response and temperature characteristics, and at the same time reduce installation cost. CONSTITUTION: A transmitter body 6 is mounted to a high-pressure-side pressure- receiving equipment 8 ...
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JP09005195 |
PURPOSE: To prevent measurement accuracy for decreasing, which may be generated in the case when the pressure of one side of a measurement differential pressure is extremely high. CONSTITUTION: A septum unit 27 and a sub-body 25 are inse...
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JP09005184 |
To obtain a device for performing within an organism a zero-point re-adjustment of a pressure transducer in the organism. A zero-point re-adjusting device in an organism consists of a tip assembly 10 for housing a pressure transducer and...
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JP09005193 |
PURPOSE: To prevent zero-point deviation and a measurement error from arising by bending a high-pressure side capillary tube, extending a bent part upward, retaining it at a low-pressure-side capillary tube, and installing both tubes und...
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JP08338779 |
PURPOSE: To obtain a fall preventive method in which an amplifier cover can be removed without entangling a chain or the like used to prevent a fall by forming a groove on the amplifier cover and using a support ring or the like which ca...
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JP08327485 |
PURPOSE: To obtain a leakage tester which can inspect an object to be tested for leakage at a high testing pneumatic pressure and, at the same time, can raise the sensitivity of a differential pressure detecting means for detecting leaka...
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JP08327487 |
PURPOSE: To provide a semiconductor pressure detector in which the influence of a residual strain on a silicon diaphragm is eliminated when a glass base is bonded to a metallic base with bonding glass, and the occurrence of insufficient ...
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JP08320269 |
PURPOSE: To reduce the error caused by the change of dielectric constant of insulating liquid sealed in a capacitor part by static pressure in a pressure detecting device for converting the displacement of a detecting diaphragm by pressu...
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JP08304121 |
PURPOSE: To make a process sate detecting device compact and to enable a user to use the device in an atmosphere where explosive gas exists and in a high temperature area by inserting a soft member easy to be deformed in the gap between ...
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JP08297064 |
PURPOSE: To provide a pressure sensor which can detect a pressure with high accuracy and can maintain the accuracy even under severe despite of having a simple constitution, being easily manufactured, and being low in cost usage surround...
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JP08261856 |
PURPOSE: To provide a differential pressure detection device which enhances the accuracy of a temperature correction by a method wherein a differential pressure detection part and a temperature detection part are brought close to each ot...
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JP08259612 |
PURPOSE: To polymerize an olefin for a long period of time stably and continuously while maintaining the height of powder surface approximately constant by measuring pressure difference between a point in a fluidized bed and a non-flow s...
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JP08247878 |
To eliminate temperature drift error by placing a counter electrode under tensile stress higher than that of a detection diaphragm (intermediate electrode) and providing the detection diaphragm) with a pressure port through formation of ...
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JP08240494 |
PURPOSE: To provide a highly reliable pressure sensor having a highly accurate detecting characteristic regardless of a temperature cycle and high static pressure. CONSTITUTION: Since the outside diameter of a post 12a is smaller than th...
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JP08240502 |
PURPOSE: To provide a capacitive pressure sensor designed to improve the linearity of output characteristics while the pressure sensitivity is set high in a required state. CONSTITUTION: A silicon substrate 10 with a diaphragm 13 and a f...
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JP08233675 |
PURPOSE: To accurately and easily perform positioning of a support member having two pressure introducing holes and a plate-like member which is joined to one end surface of this support member and in which places corresponding to the ho...
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JP08233674 |
PURPOSE: To facilitate assembling and disassembling by reducing the number of part items in a differential pressure sensor unit. CONSTITUTION: In a differential pressure sensor unit constituted so as to detect differential pressure betwe...
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JP08233673 |
To determine the pressure difference between first and second conduits easily providing a solenoid valve to be coupled with a conduit and determining the pressure difference based on a predetermined pressure gradient, a signal characteri...
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JP08233676 |
To perform cleaning easily without causing any damage on the electric characteristics by arranging an outer seal member facing a medium to be measured and an inner replaceable seal member between a pressure sensor and a connecting member...
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JP08219919 |
PURPOSE: To stabilize the differential pressure signal by a structure wherein the protective part is not subjected to the influence of compressive force of a cover tightening bolt from each part for receiving the differential pressure to...
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JP08219917 |
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...
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JP08219916 |
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...
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JP08219918 |
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 ...
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JP08204209 |
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...
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JP08201206 |
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...
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JP08193904 |
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...
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JP08189871 |
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...
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JP08184518 |
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:...
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