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JP3205325 |
To provide a capacitative pressure sensor or a capacitative differential pressure sensor that manufactures an electrode by a method being different from the silk screen printing method or sputtering. The sensor includes a substrate 1 wit...
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JP2001176721 |
To solve the problem where proper flow rate for freezing mixture cooling a superconducting coil, in which conventionally since the ratio between gas phase and liquid phase of freezing mixture flowing in a superconducting coil is unknown,...
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JP3199103 |
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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JP3196088 |
PURPOSE: To surely detect even a minute differential pressure, ensure a stable operation, reduce size and cost, further, eliminate a trouble such as contact failure, and enhance durability and reliability. CONSTITUTION: A differential pr...
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JP2001137380 |
To provide an operation detecting device which can surely detect the operation of a sprinkler fire extinguishing device even when an abnormality takes place on the device itself, and also, can prevent a wrong operation of an alarming dev...
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JP2001135689 |
To properly attain inspection of a microfine pattern by maintaining an environment in which inspection of a semiconductor wafer or the like is operated in a high clean level. A device main body 10 for inspecting a semiconductor wafer or ...
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JP3188621 |
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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JP3185956 |
PURPOSE: To enable self-diagnosis of the leakage of sealed liquid without removing a differential pressure measuring device from a measuring line by comparing the inclination angle of a specific value curve during self-diagnosis with the...
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JP3180512 |
PURPOSE: To enable self-diagnosis of the leakage of sealed liquid by comparing the 0 points obtained by making the pressures on the high pressure side and low pressure side during self-diagnosis equal to a measuring pressure and the atmo...
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JP2001109500 |
To provide a pitch change processing technology which causes less damage to the naturalness of voice. A waveform in the respective pitches of a voice waveform is divided into 1) time α when a minus peak attended with the close of vocal ...
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JP3178564 |
PURPOSE: To diagnose the leakage of encapsulated liquid without dismounting a measuring equipment by providing a CPU and a memory, storing an initial zero point output value obtained by equalizing the pressure on the high and low pressur...
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JP2001099735 |
To improve pressure difference evaluation of a fluid in a fluid system, especially in a fluid system having two or more fluids separated by membranes. A device and a method are provided for correcting a measured pressure into an approxim...
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JP2001099736 |
To provide an inexpensive, and chemically and physically stable pressure measuring device capable of preventing hydrogen permeation, even when a fluid to be measured includes hydrogen at a high temperature. In this pressure measuring dev...
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JP2001091318 |
To prevent a flow meter from being affected by temperature vibration of fluid and being damaged by fluid component in a device measuring fluid flow rate. A fluid passes through the main part 2 of the flow meter. In the main part 2, the p...
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JP3175874 |
PURPOSE: To judge leakage of sealed liquid when a difference is a predetermined value or more by storing initial characteristic curve of a temperature or pressure change and a zero point, and comparing a slope angle of a straight line fo...
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JP2001091397 |
To provide a method for easily measuring the airtightness of a building without requiring exclusive airtightness measurement facilities, or the like. In the method for measuring the airtightness of a unit-type building 1 according to pre...
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JP2001091392 |
To provide a differential pressure transmitter that has a small number of parts and can be easily maintained. In the differential pressure transmitter equipping with first and second pressure reception chambers 201 and 202 for transmitti...
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JP2001083063 |
To provide a specific gravity measuring device, capable of accurately measuring the specific gravity of an etchant in real time by measuring the hydraulic pressure of the etchant, which is circulated in a circulation channel. A part of a...
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JP3173272 |
PURPOSE: To block or reduce permeation of hydrogen through a diaphragm by applying a coating of chromium oxide, titanium nitride or boron nitride to the surface of the diaphragm. CONSTITUTION: The pressure transmitter comprises recessed ...
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JP2001074578 |
To provide a temperature characteristic regulating method for a differential pressure measuring device of a remote seal type with excellent productivity. A static pressure characteristic of a zero-point output in the differential pressur...
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JP3166477 |
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...
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JP2001059791 |
To provide a structure for mounting a pressure sensor for detecting hydraulic pressure which does not require drilling work for mounting a pressure sensor. In this structure for mounting a pressure sensor for detecting hydraulic pressure...
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JP3161641 |
PURPOSE: To provide a differential pressure sensor wherein its size is small, its cost is low and its corrosion resistance is enhanced. CONSTITUTION: This sensor is constituted of a conversion part 3 which converts the output of a differ...
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JP3160796 |
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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JP2001041839 |
To discriminate clogging by knowing a flow condition of a powder extracting line when polymer powder is extracted for transportation, by connecting the powder extracting line which extracts the polymer powder from a fluid bed reactor to ...
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JP3158913 |
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...
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JP2001033333 |
To measure the pressure of fluid at an arbitrary piping place to be measured while lowering cost and simplifying constitution. This pressure measuring instrument has a static pressure detection part 7 and a flow rate measuring part 8 uni...
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JP2001033332 |
To provide a relative pressure sensor which is protected against impurities and/or moisture and made sufficient without being filled with oil. A measuring chamber 5 filled with gas is provided and closed by a pressure-sensitive measuring...
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JP3154267 |
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...
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JP3154264 |
PURPOSE: To achieve higher reliability of a clamp part and a lover production cost by employing a more accurate clamping structure without the use of a clamping device especially in a structure for assembling a differential pressure sens...
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JP2001027572 |
To obtain a differential pressure type pressure transducer which is small-sized, lightweight, and low-cost.Bellows 5 which are made of rubber or plastic are used as a balanced previous pressure generation part 21 which generates balanced...
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JP2001021431 |
To detect relative pressure by an inexpensive simplified constitution.Two sensor elements 10 and 20 each arranged in different pressure spaces A and B are composed of semiconductor substrates in which pressure reference chambers 11 and 2...
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JP2001021430 |
To prevent actually the shift of a zero point from occurring at relative humidity which reaches the vicinity of a saturation limit.This sensor is provided with both a diaphragm 11 having a surface to which a first electrode 4 is mounted ...
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JP3148884 |
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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JP3148883 |
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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JP2001013026 |
To provide a capacitative pressure sensor or a capacitative differential pressure sensor that manufactures an electrode by a method being different from the silk screen printing method or sputtering.The sensor includes a substrate 1 with...
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JP3150500 |
PURPOSE: To easily detect secular changes without stopping the operation of a plant, etc. CONSTITUTION: A reference resistor section 80 which does not cause much temperature change is provided near a pressure receiving section 70 and the...
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JP2001009216 |
To provide the subject device simple in a structure, inexpensive, capable of precisely detecting the clogging from the outside and applicable even to an end pipe.In this device, the bypass line of a filter device 1 such as a strainer 2 i...
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JP3147972 |
PURPOSE: To prevent wear of a metal surface resulting from sliding by furnishing a coating layer in that part of a spring element which contacts a center diaphragm or a housing, wherein the spring element is provided for suppressing the ...
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JP3147778 |
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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JP3147275 |
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...
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JP3147280 |
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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JP2000356563 |
To provide a capacitance type pressure detector element capable of ensuring differential pressure sensitivity and attaining good response.A silicone diaphragm 11 and two insulation members 21 and 31 contacted putting the diaphragm 11 in ...
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JP3142752 |
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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JP3141371 |
PURPOSE: To provide a highly reliable differential manometer in which dust is removed and abnormal function is prevented at the sensor part while reducing the manufacturing cost. CONSTITUTION: The differential manometer comprising a meta...
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JP2000346734 |
To provide a device for reliably measuring differential pressure by preventing power object or the like from being deposited in a monitor pipe for clogging.An air-feeding pipe 2 is mounted to one portion of a monitor pipe 1 where a tip p...
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JP2000337986 |
To provide a capacitive pressure detecting element which can secure good responsiveness in a high flow rate domain while maintaining sensitivity required for detecting a very small differential pressure in a low flow rate domain and, in ...
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JP3134828 |
To provide the structure of a differential pressure sensor that is suited for obtaining an accurate pressure signal and can be manufactured easily and a method for assembling the sensor. A semiconductor chip 1 with a pressure-sensitive p...
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JP2000321160 |
To miniaturize a device and to easily maintain and insect the device by performing the √ conversion from the differential pressure signal of process fluid that is detected by a pressure reception part and displaying the conversion resu...
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JP3129613 |
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...
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