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JP2006522921A |
A component (6) is located in the airflow. In the flow direction, behind the separation opening (33) a windshield (50) sidewall (16) projects into the flow.
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JP2006521563A |
A method of obtaining at least one representation of a characteristic function of a sensor from a test fluid during calibration of the sensor according to a sensor model having a transfer function operating on flow rate, at least one sen...
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JP2006519994A |
Apparatus and methods for isolating a component of a microfluidic analytical system are provided. An isolation manifold including a housing is used to isolate a sensitive component of a microfluidic analytical system from environmental n...
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JP2006208309A |
To enable measurement of flow rate distribution ratio without breaking an inspection object and determination of individual difference between inspected bodies using it, under a condition where data related to the flow channel resistance...
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JP3785319B2 |
To improve durability and reliability of the sealed part against a gasoline component in a measuring object fluid by sealing an installing plate inserting groove of a casing by using a fluorine type seal material. A part of a flow rate d...
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JP3782669B2 |
To provide a heat type flow rate measuring device with high reliability capable of preventing a liquid such as a water droplet or the like from sticking to a sensor element for detecting the flow rate. A plurality of grooves 2 are formed...
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JP3764860B2 |
To provide a flow rate-measuring apparatus which does not damage a flow rate measurement element, is highly reliable even after long use, and has improved pulsating characteristics even in a state where dust and moisture are present in a...
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JP3758111B2 |
To provide an air flow rate measuring device which decreases a reduction of a flow speed in a bypass flow passage instead of a simple structure and a disorder of an air flow in the bypass flow passage, and measures an air flow rate with ...
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JP3757009B2 |
To estimate flow rate in a main pipe accurately by measuring the differential pressure in the main pipe across a joint of a shunt pipe to the main pipe, determining a shunt ratio therefrom and then multiplying the flow rate in the shunt ...
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JP2006506625A |
A device for determining at least one parameter of a medium flowing in a line in a main flow direction includes a part adapted for introduction into the line. The part may include a measuring element for determining the at least one para...
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JP2006010426A |
To prevent adhesion of an electric insulating member to a sensing part, and to suppress deterioration of detection sensitivity, in a sensor device wherein an electric connection part of a sensor element is covered and protected by the el...
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JP3718198B2 |
The invention relates to a flow rate sensor for detecting, with higher accuracy, the flow rate in a pulsating condition including a large amount of the reverse flow (21). Upstream temperature sensors (6, 7) and downstream temperature sen...
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JP3716163B2 |
To provide a heating resistor type air flow measuring device whereby pollution of a flow measuring element or its deterioration with age and its damage, caused by dust and droplets existing in intake air, are reduced. The passage shape o...
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JP3717520B2 |
A mass fluid flow controller has a valve which is controlled by a controller rod structure which is substantially pivotally mounted on a metallic diaphragm which stretches and unstretches with the movement of the rod structure. The actua...
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JP2005534007A |
An apparatus and method for measuring flow. A flow sensor includes a sensor conduit and a bypass having at least one capillary tube. At least one of the length, inside diameter, and cross-sectional shape of the sensor conduit is substant...
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JP3709385B2 |
To obtain equipment for measuring the gas flow rate in a suction passage for sucking gas in which abnormal output, aging, contamination and damage of a flow rate measuring element due to liquid and foreign matter existing in the sucked g...
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JP3709373B2 |
To provide a flowrate-measuring apparatus that accurately outputs a signal even if pulsation flow at a high engine speed and that with back flow occur. In the flowrate-measuring apparatus that is equipped with a flowrate measurement elem...
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JP3707610B2 |
To provide a flow detector enhanced in detection precision compared with that in the prior art by effectively reducing a leaned error even when a measured fluid is pulsated and accurately detecting the flow rate of a fluid to be measured...
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JP2005265819A |
To provide a shunting-type flow sensor device having a new structure which enables a miniaturization and a cost reduction while maintaining a high precision of a measurement and a measuring stability.The device comprises a main channel a...
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JP2005527819A |
Systems and methods for correcting measurements of fluid flow using device-specific information to compensate for differences between individual devices of the same design. In one embodiment, a method includes providing device-specific c...
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JP3671393B2 |
To provide a thermal flow sensor capable of measuring an accurate flow rate even if the temperature of a fluid to be measured changes without any adverse influence upon a flow detecting signal. A detecting element 40 having a heating uni...
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JP2005156570A |
To provide a device for measuring intake mass of an internal combustion engine, capable of obtaining an evenly accurate measurement result with hardly depending on a fluctuation flow or a pulsation flow.This device with a thermal flow me...
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JP2005517918A |
The invention relates to a mass tube (1) for an air measuring sensor (3) comprising a metal grid (4) acting as a flow rectifier arranged perpendicular to the air flow (2). At least two fixing elements (5) are arranged on the measuring tu...
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JP2005140753A |
To prevent dust or liquid-like matter from infiltrating in a second passage, at which an air quantity measuring element is installed, without having to attach a special dust blocking means.A flow dividing plate is arranged in the vicinit...
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JP2005514612A |
A thermal mass flow controller includes a sensor assembly and mass flow controller housing. A thermal ground limits the conductive thermal path between the mass flow controller housing and the sensor assembly and, due to the limited cros...
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JP2005514614A |
A thermal mass flow controller includes a sensor assembly, a valve assembly, and a mass flow controller housing. A thermally conductive element conducts heat from the valve assembly away from the sensor assembly, thereby reducing uncontr...
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JP2005508000A |
Methods and systems for preventing degradation of a sensor exposed to a harsh fluid, such as one that might corrode or be exposed to radioactive contaminants, live pathogens, freezing temperatures, overheating, particle deposition or con...
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JP3609148B2 |
PURPOSE: To provide a heating-resistor type air flowmeter, which can perform the temperature correction for the temperature change of air to be measured over the entire flow-rate region and can measure the flow rate highly accurately. CO...
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JP3602762B2 |
A flow rate measuring apparatus including a housing formed with a passage receiving a part of the gas flowing in an intake air passage. A flow rate detection element is disposed within the passage, which detects a flow rate of the part o...
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JP3577941B2 |
A flow rate measuring device includes a flow rate measuring duct for placement in a primary passage for a fluid, extending substantially parallel to the primary passage, and a flow rate detector in the flow rate measuring duct for measur...
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JP3562712B2 |
A flow rate measurement apparatus includes: a plurality of flow paths 13 provided between an inflow port 11 and an outflow port 12; opening/closing sections 14 for opening/closing the plurality of flow paths 13; measurement sections 15 f...
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JP2004213601A |
To provide a mass flow rate control machine for a control purge and an operation method simultaneously providing two functions of a general control and the purge in a single mass flow rate control machine.In performing a purge function, ...
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JP3540818B2 |
The disclosed flowmeter includes a sensor tube and a heater. The sensor tube defines an input end, an output end, and an interior channel extending from the input end to the output end and permits fluid to flow from the input end through...
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JP3539975B2 |
The disclosed mass flowmeter includes a section defining a passageway and a laminar flow element disposed within the passageway so as to define a laminar flow channel within the passageway. The maximum cross sectional dimension of the la...
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JP2004170417A |
To provide an alternative embodiment by improving an apparatus for passive gas sampling in a respiration system.Pieces (2, 14) of apparatus for passive gas sampling in the respiration system comprise conduits (4, 16). The conduits (4, 16...
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JP2004517313A |
A fluidic gas metering system interposed in a line running from a gas source to a user site to meter the gas stream being supplied to the user in a broad flowrate range defined by a low flowrate band at the lower end of the range, a medi...
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JP3527813B2 |
To provide the air-flow-rate measuring device characterized by high accuracy, the low cost and excellent handling property. This device is constituted by providing a main air-path body 20 forming a main air path 22 for flowing air and a ...
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JP2004513331A |
A robust sensor that incorporates the necessary physical structure and thermal characteristics is capable of measuring fluid flow and properties under harsh environmental conditions. The sensor die is made of a material with thermal cond...
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JP3523022B2 |
To provide a heating resistor air flow rate measuring instrument which has high accuracy, high reliability, and high mountability at a low cost. A heating resistor air flow rate measuring instrument is composed of a flowmeter body 86 and...
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JP2004117338A |
To provide a fluid mass flow sensor for measuring a mass flow rate with a more accurate value.The fluid mass flow sensor measures the amount of fluid to be introduced into an internal combustion engine. The fluid mass flow sensor 10 comp...
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JP2004053600A |
To avoid contaminating or damaging a measuring element arranged in a measuring passage by a simple method even if liquid particles and/or solid particles reach into the measuring passage.One passage structure is formed in a member 6. The...
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JP3478592B2 |
PURPOSE: To provide an air flow sensor simplified in structure, manufacturable at low cost and highly measurable. CONSTITUTION: This structure has an air flow sensor to be stationarily mounted on a sensor mounting base 10 connected to th...
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JP3475853B2 |
To provide a flow rate measuring apparatus wherein the flow rate detection error little occurs even when a flow velocity distribution changes due to the bend of an intake passage, the assembling variation of air filters or air cleaners, ...
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JP2003240620A |
To provide a gas flow measuring device having a digital circuit capable of taking out an easy and highly-accurate gas temperature detection signal with simple arrangement and a small cost increase.A voltage V3 at the connection point bet...
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JP3438843B2 |
PURPOSE: To obtain a thermal type flowmeter of which resistance to radio interference noise is improved and of which product cost is reduced. CONSTITUTION: A rectangular shielding plate 28d expanding a terminal 28a connected to a minus t...
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JP2003513643A |
An environmental monitoring and controlling system for a ventilated cage and rack system that monitors and measures air flow in the rack at either the rack or cage level. At the rack level, two pressure sensors are provided in a supply a...
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JP2003506703A |
A microsensor housing having a structure with at least one inlet at one end and a thermal property sensor at the other end. Situated between the inlet and the sensor is a convection shield. Sampled fluid is taken in the inlet from a chan...
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JP2002333347A |
To provide a distributary flow meter capable of reducing flow disturbances in the vicinity of a detecting element in a channel of the distributary flow meter and measuring the quantity of flow with high accuracy even in a region of a low...
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JP3324106B2 |
A central member of a sensor unit is inserted through a sensor unit mounting hole of a cylindrical body having a main passage and the sensor unit is assembled on the cylindrical body. The sensor unit comprises the central member which is...
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JP2002250650A |
To provide a method for measuring a mass flow by using simple and conventional flow measuring elements and simple and conventional computing relays.This method is used to control mass flow, molar carbon flow, and the molar steam carbon r...
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