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JP03191831 |
PURPOSE: To improve the measuring accuracy of a pulse oscillating flowmeter regardless of the calibrating time of the flowmeter by measuring the elemental periods which separate two pulses arranged in a specific measurement interval from...
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JP03175179 |
PURPOSE: To provide a more accurate and reliable adjustable device by providing calibration circuitry which senses the time during which fluid is first fed in a calibration mode of operation of delivery equipment for herbicides, etc., an...
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JP03135729 |
PURPOSE: To improve the accuracy of the amount of injection of a drip control pressure injecting device by connecting the drip control pressure injecting device and a volume measurement pressure injecting device or a flow meter to an eva...
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JP03023348 |
PURPOSE: To accurately detect deterioration of an airflow meter and to perform rapid exchange of a part by a method wherein the change ratio of the output voltage of the airflow meter in a specified state is measured, and the measurement...
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JP03023346 |
PURPOSE: To accurately decide long term deterioration of an airflow meter by a method wherein a detecting value of an intake air flow rate by the airflow meter is compared with a prelearnt learning value, and when a difference therebetwe...
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JP02193020 |
PURPOSE: To set a discharging quantity of liquid, e.g. herbicide, accurately by providing a spray head having a motor spray element and a handset. CONSTITUTION: In the normal operation, a trigger 14 is operated to open the valve in a han...
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JP02187141 |
PURPOSE: To compound the solns. with high precision by measuring weight of the solns. fed from a fixed delivery pump and comparing this measured weight value with the set weight value converted from the preset feeding volume of the solns...
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JP02136716 |
PURPOSE: To treat a weeding killer safely by selecting a test time so that the weed-killer does not reach a semicircularly shaped curved part near an exit during the test time. CONSTITUTION: A device has semicircularly shaped curved part...
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JP02006296 |
PURPOSE: To control a flow precisely and accurately without necessitating a flowmeter by adjusting a metering valve during a time interval so that fluid follows a flow control accurately under normal pressure and temperature conditions. ...
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JP01301123 |
PURPOSE: To measure the inner capacity of a tank electrically by disposing an electromagnet at the inlet opening of the tank and holding a rod in the field of the electromagnet. CONSTITUTION: When a current is fed through the coil of an ...
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JP01215367 |
PURPOSE: To regulate the volumetric output of a reversible pump of variable output by disposing a duct for directing fluid from the pump toward a lower area of a calibration vessel in order to determine the volumetric output of the varia...
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JP01206218 |
PURPOSE: To obtain a compact flowmeter by measuring the flow rate of fluid by coupling the outputs from two out of three detection means and obtaining an error signal to be employed for recalibration of measurement by coupling the output...
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JP01206219 |
PURPOSE: To obtain a unit suitable for measuring domestic gas by arranging means for monitoring fluid flowing through the unit in a channel for bypassing a part of total flow. CONSTITUTION: A fluid enters into an inlet 34 and flows throu...
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JP01163621 |
PURPOSE: To detect leakage and theft by providing a first input for receiving output from a sensing device and a second input for receiving output from a measuring device used for measuring the volume of a material loaded into and out of...
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JP01158346 |
PURPOSE: To determine a coefficient of elasticity accurately and easily by measuring the length and density of a pipe, exciting stress wave at one edge of the pipe, and subtracting a specific coefficient from a propagation time where a s...
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JP01143932 |
PURPOSE: To perform calibration accurately with a test system without any error and leakage by measuring a flow that passes through a sound velocity Venturi and a secondary sound velocity Venturi and comparing the difference between the ...
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JP01105120 |
PURPOSE: To form a simple and compact structure and to achieve assembly easily by introducing a flow member to a shock plate that is formed by a semi-cylindrical shell being extended vertically and detecting a horizontal constituent in t...
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JP01027662 |
PURPOSE: To make it possible to easily return fluid by a pressure equalizing means which equalizes the pressures in and out of a container when the fluid flows through an outlet into the container and when the fluid returns from the cont...
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JP63241488 |
PURPOSE: To perform accurate measurement whose calibration is easy by opening individual shutters in order from the top and counting output pulses of γ-ray detection by a counter, and referring to a stored counted value and performing s...
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JP62298725 |
PURPOSE: To increase the calibration accuracy of a flowmeter by providing buffers having surfaces in the direction of a flow in a head tank, in the tank. CONSTITUTION: Buffers 20 with a number of through-holes 20a are provided in a liqui...
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JP62280622 |
PURPOSE: To prevent measurement accuracy from decreasing owing to the leak of liquid without placing any excessive load on a piston by arranging a vacuum breaker in a waste liquid pipe communicating with a reciprocal operation type refer...
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JP62267621 |
PURPOSE: To exactly and efficiently execute a measurement on the spot, irrespective of a position where a weighing machine has been provided, by constituting a measuring device and a sump solution container so as to be movable, respectiv...
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JP62267891 |
PURPOSE: To simply and accurately inspect a meter indicating integrated value of flow from a position apart from an integrating flow meter by providing plural display sections of different color corresponding to figures indicating integr...
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JP62235529 |
PURPOSE: To perform a calibration without the operation of a worker by providing arithmetic means for calibrating input signals from an A/D converter to prescribed level signals corresponding to a zero point and a span point by an manual...
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JP62235530 |
PURPOSE: To facilitate a calibration by performing a linearity correction and a zero point temperature correction on A/D-converted level detection signals by folded line correction data and square curve temperature correction data stored...
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JP62228918 |
PURPOSE: To specify the liquid level of liquid by installing straightening members which have many flow passage opening distributed uniformly in a tank for upstream flow meter calibration at right angles of the flow direction of the liqu...
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JP62222125 |
PURPOSE: To simplify the mounting and detachment of an adaptor and to prevent the generation of the setting mistake of an electromagnet, by a method wherein two electromagnets are arranged so as to become symmetric across the phototransi...
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JP62187220 |
PURPOSE: To automatically calibrate the measurement error of a flow meter without stopping gas supply facilities and to improve the measurement accuracy by comparing a gas flow rate integrated value which is measured within a specific ti...
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JP62165122 |
PURPOSE: To easily calibrate a flowmeter after plant installation and to control the accuracy of the flowmeter by inputting respective output pulses at the time of count-up operation to a downstream-side and an upstream-side transmitting...
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JP62140027 |
PURPOSE: To prevent the erroneous mounting of a flow rate data memory means to a novel flowmeter, by providing a discrimination signal memory means integrated with a flow rate data memory means and discriminating the discrimination signa...
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JP62123320 |
PURPOSE: To establish a weighing method for transaction, by jointly measuring the purity of methanol using a specific gravity meter in the measurement of fuel methanol. CONSTITUTION: A tester is made up of an integrating flowmeter 5, a s...
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JP62116219 |
PURPOSE: To enlarge a measuring range of a flow amount and to make it possible to detect physical quantity with high accuracy, by compensating drifts generated in a sensor and an amplifier. CONSTITUTION: A signal obtained by inputting a ...
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JP62081532 |
PURPOSE: To make it possible to certainly detect the abnormality of a pump at an early period, by monitoring the moving direction and moving process time of a piston to compare said process time with a preset moving process time and judg...
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JP62080518 |
PURPOSE: To monitor the discharge flow meter of a pump at any time and to diagnose accurately and inform the soundness by estimating pump characteristics corresponding to respective pumps by function generators and calculating deviation ...
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JP62056822 |
PURPOSE: To easily set a reference liquid level in a short time and to perform calibration which is affected by neither the error nor secular change of the liquid level by closing all lines of drains below a target reference level among ...
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JP62000813 |
PURPOSE: To prevent surely measurement precision from decreasing and output characteristics of a film type resistance from varying by limiting the supply of electric power to an electric heater by a limiting means when abnormality of flu...
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JP61253430 |
PURPOSE: To achieve a higher accuracy in the measurement of flow rate, by setting and memorizing an instrumental curve beforehand while a reference value is set with a reference setter to determine counts of flow rate by addition and sub...
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JP61239120 |
PURPOSE: To execute a calibration with a high accuracy and also at a high speed by providing an AGC switching device, an infinite voltage setting part, and a high speed operating circuit. CONSTITUTION: A level meter is constituted by pro...
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JP61205822 |
PURPOSE: To enable the automatic correction of an error by irregularity, by forming a mechanical mechanism into an electronic circuit. CONSTITUTION: The rotary output of a flow amount rotary mechanism 1 is supplied to an electric convers...
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JP61193026 |
PURPOSE: To confirm operation by short-time operation with a small amount of fresh water by sealing the protection pipe of a liquid level detector and using a simple water level gauge which communicates with it. CONSTITUTION: A screw 19 ...
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JP61091518 |
PURPOSE: To enable the setting test items and the correction of test conditions automatically, by memorizing test items and test conditions into a memory means beforehand to operate a fluid control means based on a command from a data in...
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JP61090016 |
PURPOSE: To calibrate a flow rate having any size at the same place by providing plural provers which differ in reference capacity, and switching a valve to a flow meter to be calibrated and connecting a prover having proper capacity. CO...
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JP61080014 |
PURPOSE: To enable easy confirmation of operation with pussible individual testing without dismounting a full-water level detection switch, by installing a water drain valve in a pipe line including the full-water level detection switch....
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JP61073024 |
PURPOSE: To measure the instrumental error of a positive displacement flowme ter which varies in discharge quantity periodically with high precision by detecting the position of a piston which moves in a prober. CONSTITUTION: When a pump...
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JP61070418 |
PURPOSE: To detect a fault of a water level gage by detecting variation of the relative position in the vertical direction of a float and an auxiliary float. CONSTITUTION: Even if the float 10 is caught in a well 1 and floating is obstru...
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JP60247119 |
PURPOSE: To make it possible to perform calibration tests in any exciting method, by inputting a reference voltage for calibration corresponding to the direction of an exciting current for the converter of an electromagnetic flowmeter in...
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JP60209118 |
PURPOSE: To enable exact measurement of an ultrafiltration rate by passing liquid at two stages of different flow rates to two flowmeters which measure the inflow and outflow rates of a dialyzer and calibrating the other flowmeter by usi...
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JP60209119 |
PURPOSE: To measure with high accuracy a flowmeter without generating a water hammer by opening and closing slowly a control valve provided between a flowmeter and piston prover which is used for examining a flowmeter. CONSTITUTION: A pi...
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JP60205317 |
PURPOSE: To simplify a device and to reduce its size by performing on-off control over a control valve with the output signal of a sensor used for measurement, and only arranging one sensor at both ends of the piston prover and performin...
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JP60202314 |
PURPOSE: To improve detecting accuracy and to make the device compact without the effect of the axial deflection of a piston, by arranging detecting members, which are different bodies from the piston, in the vicinity of the sliding end ...
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