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WO/1983/002825 |
A meter prover comprises a cylinder (16) having a proving bore (22) and enlarged end chambers (20). A piston (12) is mounted within the cylider for movement along the bore in sealed engagement therewith, the axial length of the piston ex...
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WO/1983/000924 |
The test device (10) is intended to a metering device (1) which is essentially used for the treatment of waters. The test device may be connected to the electric circuit and to the metering conduit of the metering device for simulating a...
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WO/1981/003701 |
An ultrasonic system for sensing a liquid-fluid interface comprises a support structure (10) to which a transmitting crystal (21) and a receiving crystal (22) are bonded in such a way that the crystals (21 and 22) are positioned opposite...
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WO/1981/003379 |
A device for measuring the amount flowing through and/or the speed of flow of a medium which is pumped by means of a pump unit. The device comprises a drive motor for producing the working cycles of the pump unit and a pick-off to detect...
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WO/1981/001055 |
A sensor (12) for measuring leakage from a liquid containing tank (11) comprises a main body portion (12) suspended from a balance arm (18) or other mass displacement detector and has a liquid holding portion (14) in the main body portio...
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WO/1981/001054 |
A method of high sensitivity for measuring leakage of liquid from a storage tank (11) which comprises introducing a sensor (12) into the liquid in the tank (11), the sensor (12) being coupled to means (17) for sensing displacement of mas...
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JP2011209289 |
To provide a method for determining the total volume of propane based on a mass flow rate from a Coriolis flowmeter.In a method of delivering the propane to a customer 202, a transport vehicle 200 transports the propane to the customer 2...
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JP2011185945 |
To perform exact comparison between a flow rate measured by a flowmeter and an actual flow rate offered by a testing device.A delay time 202 between the actual flow rate, and the measured flow rate in the flowmeter is decided. Then, the ...
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JP2011158482 |
To provide a flow rate measuring apparatus that calibrates a drive signal applied to a driving device fixed to a conduit and causes a conduit to be vibrated in a desired vibration mode.The steps for measuring flow of material in a flow t...
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JP2011137834 |
To provide a system and a method for guiding a user with respect to a process of using a flowmeter so as to complete a task specified beforehand.The system has a constitution described as follows: user selection of a prescribed task from...
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JP2011112533 |
To provide a method for verifying ultrasonic feed-water flowmeters capable of heightening the reliability of measurement accuracy of a feed-water flow by a Chordal type ultrasonic feed-water flowmeter, reducing estimated errors in therma...
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JP2011064707 |
To provide a gas flow rate verification unit capable of enhancing reliability of gas flow rate verification.The gas flow rate verification unit has a first cutoff valve 12 that is connected to a flow rate control device 10 and to which g...
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JP2011058985 |
To provide an analyzer capable of evaluating the dispensing performance of a dispensing mechanism in an own unit.This analyzer includes the dispensing mechanism; an imaging mechanism imaging a liquid dispensed by the dispensing mechanism...
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JP2011017725 |
To provide a measuring reservoir for measuring the volume of the second component of a two-component mixture by the given volume of the first component and the given ratio of the mixture components.The reservoir has a housing of transpar...
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JP2010210528 |
To provide a inspection system inexpensively available without making any design change of piping and the like to an existing gas piping system used in semiconductor manufacturing processes and the like, and inspecting a mass flow contro...
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JP2010204010 |
To provide a remaining amount indicator device of a tank capable of correctly indicating a remaining amount of liquid in the tank on a indication means.The remaining amount indicator device A of a tank including a control means H for ind...
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JP2010204064 |
To improve the durability of a sealing material arranged on the outer peripheral wall of a piston and improve the detection accuracy of the liquid meter by eliminating occurrence of chatter called stick slip occurring between a cylinder ...
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JP2010121938 |
To calibrate a measured value of a flowmeter on-line so that a flow rate of fluid containing a solid content may not deviate from a set value.This flow control equipment 15 includes a tank 1 which stores the fluid containing the solid co...
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JP2010117328 |
To provide a calibration work assisting control device and a calibration work assisting system capable of executing a calibration work, while securing fixed safety, by obtaining surely and properly a calibration period of an apparatus fo...
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JP2010066107 |
To provide a fluid flow measuring device capable of compensating a change of the performance with passage of time, and to provide a method for measuring MAF (Mass Air Flow).The fluid flow measuring device includes: a main flow channel 5 ...
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JP2010054512 |
To provide a calibration method and system for calibrating a meter devoid of a process connection part.The system 200 includes a connection adapter 216, where the system is operable for calibrating both linear and nonlinear meters with m...
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JP2010015580 |
To provide a method for configuring a massflow controller for operating with fluid and/or operating conditions different from that used during the production of the massflow controller.A system and method for controlling the mass flow co...
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JP2010012376 |
To provide a pipette calibration apparatus that measures a liquid of a micro volume and a pipette calibration device using the same, which improve operability.The calibration apparatus 10 includes a measuring container 12 that receives a...
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JP2009276229 |
To provide a holder of a magnetostrictive liquid level gauge detection unit for allowing a calibrating/water checking operation by utilizing a mounting tube, without having to remove the detection unit from the mounting tube.The holder 1...
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JP2009245132 |
To provide a flow controller and a test method therefor which enable testing of the flow control of a process gas passing through a fluid path during operation of semiconductor manufacturing apparatuses.While the flow control is performe...
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JP2009230747 |
To provide a liquid level control system which is easy in the output value adjustment operation of a water level detector, and can control a liquid level highly precisely.Each detected value from the water level detector 9 and liquid rat...
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JP2009198357 |
To provide such a measuring instrument as reducing a corresponding load in a center-side system without causing warning or preannouncing communications to center by providing a communication date/hour control means to a measuring instrum...
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JP2009157578 |
To provide a flow rate control device capable of examining accuracy in flow rate control of fluid flowing through a channel during operation of semiconductor manufacturing equipment, and the like.The device is equipped with a control mea...
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JP2009128355 |
To provide an electrostatic capacitance type proximity sensor capable of dispensing with manual re-regulation at each fluctuation of sensitivity or precision caused by a change in a size or a material of a detection object, or a change a...
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JP2009109295 |
To provide a flow rate official approval apparatus for diagnosing failure capable of improving reliability of flow rate official approval.The flow rate official approval apparatus 8 for diagnosing failure includes a failure diagnosing me...
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JP2009104641 |
To provide methods for comparing and selecting process control apparatus.The method employs software, executed on a stand-alone computer device, or accessible through the web to retrieve data specific to a given process environment, and ...
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JP2009014726 |
To provide a system and a method for field calibration of a flowmeter.A calibration system for the flowmeter includes a flow simulator which includes a receiver configured to receive flowmeter transducer signals from the flowmeter. A sim...
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JP2009008478 |
To provide a microchip inspection system detecting a flow rate in a channel highly accurately with high reliability.This microchip inspection system comprises: a pump for injecting fluid from the channel into a microchip; a thermal flow ...
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JP2008286761 |
To smooth the movements of a piston, make leaks hard to occur, and prevent errors from occurring in a fluid having a standard volume being fed to a flowmeter to be calibrated.The moving speed of the piston 2 is controlled in such a way t...
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JP2008286760 |
To provide a low-cost and highly reliable piston prover having poppet valves eliminated inside a piston and having a simple structure, a very few number of parts, and very few sealed sections.A first retracting chamber 2-1 and a second r...
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JP2008286762 |
To provide a leak detection method capable of detecting the amount of a fluid (incompressible fluid) leaked from a sealed part of a piston.An incompressible fluid such as a liquid is filled in a cylinder 1. The piston 2 is moved to a des...
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JP2008286759 |
To provide a low-cost and highly reliable piston prover having poppet valves eliminated inside a piston and having a simple structure and very few sealed sections.An outer circumferential surface 2a of the piston 2 is provided with a not...
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JP2008286764 |
To complete inspections on the calibration of the quantity of flow of a flowmeter to be tested having a plurality of types of flow measuring ranges and measurement accuracy by one measuring operation of one piston prover.Measuring sectio...
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JP2008286765 |
To provide a leak detecting method, giving information on the leakage quantity of a fluid (a compressive fluid) from a sealing part of a piston.The inside of a cylinder 1 is filled with a compressive fluid. The piston 2 is moved to a des...
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JP2008215896 |
To provide a bidirectional prover capable of calculating an instrumental error highly accurately, and a bidirectional prover capable of simplifying a device configuration.Arrangement of one of a pair of pressure detection means 18, 20 is...
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JP2008170410 |
To provide mass flow rate controller which enables high-accuracy assay by reflecting both pressure and mass flow and also allowing for variation in tank volume.This is the method for assay of the mass flow rate controller which comprises...
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JP2008089575 |
To provide a method and a device for gas flow measurement.In one embodiment, by using a calibration circuit for gas control, in particular, verification and/or calibration of the gas flow utilizedin back-side cooling, distribution for pr...
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JP2008089607 |
To provide a mass flow controller capable of performing test operation of a mass flow rate by the device itself by incorporating a test tank.This mass flow controller comprises a control means 18 for controlling a flow control valve mech...
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JP2008076134 |
To enable a nonstationary flow rate of a compressible fluid including a reciprocating flow to be generated continuously and precisely.A continuous nonstationary flow rate generator is equipped with: a flowmeter 12 for measuring an inflow...
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JP2008076393 |
To provide a device for calibrating pipettes or feed systems which can be manufactured at a comparatively low cost, and to provide a device and a method for calibrating pipettes or feed systems which can be used even without knowing befo...
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JP2008038175 |
To provide a method for injecting powdery material with which the powdery material is discharged from a feed-tank in high accurate discharging speed and can be inject into a furnace.This method for injecting powdery material, is performe...
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JP2007163152 |
To provide a flow rate measuring device capable of quick processing, and having high durability and high measuring accuracy.A diaphragm 33 is deformed uniformly and finely by compressed air supplied from an electropneumatic regulator 21,...
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JP2007106018 |
To provide a pressurized gas introducing device which certainly introduces a pressurized gas with a constant pressure required to form a hollow part, and has a simple structure.The pressurized gas introducing device is composed of: a pre...
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JP2007101472 |
To provide a city water meter testing device, capable of knowing the level of a start-up flow rate in a tested city water meter, and capable of precisely attaching a pilot detecting part for generating a pulse signal, in response to the ...
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JP3932514 |
To provide a method for diagnosing a noise-failure of a fuel level sensor in a vehicle, so that fuel leakage monitoring can be maintained or stopped based on whether the fuel level sensor is in noise-failure or not. When a predetermined ...
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