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JP10114581 |
To improve strength and corrosion resistance by disposing a joining material consisting of specified α-aluminum oxide powder, inorg. oxide powder as a sintering aid and an org. vehicle between two members and heating them. A pasty, shee...
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JP10090099 |
To provide a highly reliable and accurate pressure sensor in which a sensor chip is protected against damage and whose characteristics are prevented from deteriorating. When the upper and lower cases 11, 12 of the sensor 10 are jointed a...
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JP10090098 |
To provide an evaluation unit for differential pressure sensor producing an output signal corresponding to a pressure difference corrected for rated pressure error. Inner temperature Ti corresponds to the sum of reciprocal-of capacitance...
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JP2765333 |
PURPOSE: To prevent permeation of hydrogen from a measurement fluid side to a seal diaphragm in a pressure measuring device with a seal diaphragm. CONSTITUTION: A hydrogen permeation prevention metal layer 1, an intermediate metal layer ...
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JP10068666 |
To provide a differential pressure detector capable of overcoming many errors accompanying the conventional rear surface etching process to be easily regulated and a method for manufacturing the same. In a pressure detecting chip 14 havi...
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JP10062286 |
To stabilize the characteristic of a sensor by providing a protruded part either at an electrode drawing part on a first substrate or on a second substrate to make the width of a gap near the electrode drawing part less than that of the ...
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JP2749774 |
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...
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JP10048085 |
To stabilize differential pressure measurement in a high temperature plant. A cavity 7 is formed inside the boss of a flange 5, in which a bellows 8 and a coil spring 9 are provided. The spring 9 made of shape memory alloy with expansion...
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JP10038726 |
To obtain a semiconductor differential pressure detector excellent in the linearity of pressure and output even in low pressure region with high productivity by forming a reinforcing layer covering a region where a strain gauge is formed...
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JP10019708 |
To improve static pressure span characteristics by reducing an area of a conductive film coated to a surface opposite to a diaphragm in a fixed electrode facing close to the diaphragm. A fixed electrode comprises an insulating plate 1 ha...
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JP10019707 |
To improve manipulation safety by providing a projecting part project ing from a pressure-receiving flange and narrowing a central part of a recess, and reducing a difference of sectional areas between a central part of a flange chamber ...
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JP10019709 |
To correctly detect a pressure by sealing the interior of a cavity part by a film and transmitting the pressure via the film without allowing an atmospheric pressure to enter the cavity part directly. The sensor has a first substrate 12 ...
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JP10009986 |
To provide a capacitance-type pressure sensor which prevents a characteristic from being degraded due to a warpage generated at a silicon substrate and an insulating substrate by a method in which the silicon substrate, for warpage offse...
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JP10009987 |
To provide an electrostatic capacity type pressure.difference pressure transmitter having a structure capable of reducing the asymmetry of temp. characteristics without complicating a sensor structure and capable of keeping resolving pow...
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JP10002770 |
To realize an integrated pressure-difference flowmeter, having simple structure in which the measurement accuracy can be enhanced by suppressing the effect of pulsating component of a fluid to be measured. A fluid to be measured flows fr...
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JP10002823 |
To reduce the load on a host device by determining the variation of a detected differential pressure signal from the differential pressure signal of one sampling period before, performing a primary delay operation to the variation, and o...
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JP09318481 |
To enable measurement with high accuracy even by a diaphragm with small pore size. Each of reference static pressure, reference differential pressure, and reference temperature is impressed on the main body of detection by a few points i...
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JP09318479 |
To prevent a transmission part from rotating to the main body at the time of receiving external forces. A tubular part 18 is protrudingly provided for the enclosure 5 of a main body 2, and this tubular part 18 is fitted into a cylindrica...
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JP09311086 |
To obtain a differential pressure transmitter in which a differential pressure can be measured precisely by using a ring by which the operating fulcrum of a diaphragm is made constant. A differential pressure transmitter is constituted o...
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JP09304211 |
To provide a packaging structure, for a capacitive pressure sensor, which is small, whose environment-resistant property is good and whose production costs are low. A sensor body S as a whole is mold-molded together with a lead frame 1 s...
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JP09297043 |
To realize a composite sensor which can detect by single sensor the water level and water quality or the flow rate and water quality in the water storage system such as reservoir, paddy field, etc. A first glass substrate 2 having a pres...
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JP09288028 |
To provide an infinitesimal pressure difference sensor using a Hall element capable of easily and accurately regulating the sensor itself with a screw without necessity of a complicated airtight holding mechanism, mounting a magnet at a ...
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JP09288029 |
To provide a method and apparatus for adjusting an infinitesimal differential pressure sensor with small-size and high finely adjusting capacity without necessity of providing an elastic packing at a board and in the opening of a casing ...
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JP2709297 |
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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JP09257620 |
To measure physical displacement by forming a reference capacity which is filled with the same sealing liquid as a pair of electro-static capacities and in which the electro-static capacities are not changed for physical displacement, an...
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JP09243490 |
To easily control a contact of a fluid to be measured to a pressure- receiving diaphragm and adjust a zero point of a differential pressure transmitter, by setting two pressure-detecting parts of the remote seal diaphragm-type differenti...
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JP09229803 |
To reduce the number of pressure-sealed electric penetration guide members and to significantly reduce required flexible connection lines, to which a continuous load is applied, relating to a differential pressure measurement and transdu...
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JP09229802 |
To prevent the influence of a fault from being applied by the radial strain depending upon the absolute pressure of the means of an overload protector to a measuring instrument by suspending the instrument from the recess of a measuring ...
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JP09229729 |
To reduce the individual difference between pressure sensors and detect exact fluid vibration and exact flow. In the pressure sensor having intermediate pressure chambers 8A, 13A which are enclosed space defined by piezoelectric films 5,...
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JP09229800 |
To improve temperature characteristics, by installing a wetted temperature sensor in a wetted body, being in the vicinity of a wetted chamber, and temperature-compensating the output of a pressure sensor by the output of the wetted tempe...
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JP09229801 |
To provide a differential pressure type semiconductor sensor of thin type. On the side surface of a body 2 to which a sensor chip 1 containing a pressure reception diaphragm 10a is jointed, first and second insertion openings 15 and 16 w...
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JP09222345 |
To detect the flow rate of a fluid more accurately by improving noise elimination capacity without being affected by the difference in the length of a plurality of pressure-guiding paths and the difference in the volume of a plurality of...
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JP09218121 |
To simplify an arithmetic circuit, enhance static pressure characteristic and temperature characteristic, and provide a differential pressure detecting means at low cost by constituting a bridge by use of first and second sensors provide...
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JP09218120 |
To provide a pressure receiving flange capable of pertinently coping even with flowrate measurement for a high temperature corrosive fluid, extending the service life thereof as a whole, and realizing cost reduction. A pressure receiving...
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JP09196788 |
To improve the reliability of mechanical strength for the pressure and corrosion of the welded part of a differential pressure transmitter to a pressure transmitter and a pressure receiver. A sensor housing 3 having a sensor 2 is welded ...
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JP09189634 |
To reduce the size and weight of a pressure detecting part. A flange part 23 is integrally provided on the circumference of a detector body 10. The flange part 23 is fixed to a flange 7 by a plurality of mounting bolts 17, and the seal s...
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JP09188381 |
To make it easy to carry this transmitter by a person, by providing a handle at one aside of a fitting plate on which a transmitter body and a pressure-receive flange are fixed and containing the fitting plate in a packing case so as to ...
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JP09184799 |
To early detect that a filter is closed by clogging, by installing a detecting part which detects foreign matter, and a differential pressure detecting part which detects the difference between the atmospheric pressure in a detection spa...
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JP09178596 |
To obtain a highly reliable pressure sensor by making an atmosphere introduction hole through the body with the outer open end thereof being located on the opposite side to a mounting board with respect to the body thereby preventing a f...
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JP09159491 |
To obtain a site-type measuring instrument which can satisfy an explosionproof regulation by a method wherein a terminal base which is provided integrally with a meter housing part having an opening part in a tip face protruding to the f...
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JP2664023 |
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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JP09159561 |
To remove a foreign material, improve sensor accuracy, ensure long- term reliability and reduce cost by providing a filter part having a water repellent property and gas permeability, and introducing measured gases to a diaphragm via the...
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JP09145518 |
To improve a responsivity and a temperature characteristic. A diaphragm 15 in touch with a liquid and a diaphragm 35 for preventing and overloed are arranged symmetrically at both side faces of a detector body 17 of a pressure detector 3...
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JP09145517 |
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...
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JP09140822 |
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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JP09138176 |
To provide a diagnostic system for inspecting the functionality of a tank vent by measuring the pressure in a fuel tank using a pressure sensor in order to specify the oil supply process. The diagnostic system comprises a differential ma...
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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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