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JP01124336 |
PURPOSE: To constantly keep ion concentration at the optimum level, by measuring a nutrient ion concentration in a hydroponic solution tank by an ion determination means and introducing a concentrated liquid from a concentrated liquid ta...
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JP01086973 |
PURPOSE: To obtain aromatic odor stably for a long time by making volatilization rate constant by constructing so that a volatilization control plate set in contact with the upper surface of an aromatic and deodorizing product in a conta...
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JP01047420 |
PURPOSE: To obtain an air cleaner of high safety by using a control circuit involving relays and triacs when the operation of air cleaner is controlled by detecting the air pollution. CONSTITUTION: The air cleaner main body is provided w...
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JP01007942 |
PURPOSE: To attenuate the variances of regulating parameters and to improve working efficiency by regulating the operation of a chemical treatment plant by carrying out the regulation processing of the measured values of the compd. flow ...
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JP63319027 |
PURPOSE: To accurately control the hydrogen chloride concn. in the exhaust gas after reaction to a desired value by taking specified measures to eliminate a dead time in the desalting reaction process of hydrogen chloride by a slaked lim...
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JP63202695 |
PURPOSE: To improve responsiveness of a blend, by preparing a blend setting signal on the flow rate basis from a sulfur concentration of each single crude heavy oil before blending two kinds of heavy crude oil and blending ratio setting ...
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JP63069595 |
PURPOSE: To carry out aeration to the lowest possible degree, by measuring the DO values varying in an aeration tank, calculating the necessary aerating time for activated sludge based on the measured values, and controlling the aerating...
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JP63026564 |
PURPOSE: To enable continuous measurement by generating the flow of the external air flowing continuously in a prescribed space and detecting the concn. of gas in such flow of the external air. CONSTITUTION: Damping water 21 drawn throug...
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JP62272150 |
PURPOSE: To permit the simple and automatic control of the pH of an aq. soln. to be subjected to pH control by electrolyzing said soln. to increase the concn. of the hydrogen ions thereof. CONSTITUTION: An electrolyte 4 is filled in an e...
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JP62243675 |
PURPOSE: To buffer pH of a solution containing metal ions, forming insoluble metal salts with a phosphate and present therein without forming the insoluble metal salts, by adding a phosphoric acid ester salt to the solution. CONSTITUTION...
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JP62234501 |
PURPOSE: To decrease the change of the concn. of a concd. liquid in a stage for changing the quantity of production and to stabilize the concn. of the concd. liquid of a liquid by adding the opening degree of a control valve meeting the ...
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JP62234502 |
PURPOSE: To decrease the change of the concn. of a concd. liquid in a stage for changing the quantity of production and to stabilize the concn. of the concd. liquid of a liquid by adding the opening degree of a control valve meeting the ...
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JP62185158 |
PURPOSE: To automatically perform pH value adjustment within an apparatus blocked from the pen air within a short time with high accuracy without using labor, by forming a small loop starting from the branch line in the emitting side of ...
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JP62155901 |
PURPOSE: To concentrate a soln. rapidly and precisely by providing a temp. sensor at a liq. level where the sensor is exposed at a desired concn., detecting the finish of the concentration of the soln., and automatically stopping the hea...
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JP62123012 |
PURPOSE: To economically produce ammonium sulfate without adding sulfuric acid unnecessary for operation, by measuring electric conductance and temperature of ammonium sulfate mother liquor discharged from a saturator, calculating free a...
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JP61266578 |
PURPOSE: To surely detect the start of electroless plating with a device which permits easy maintenance and control by subjecting an electrode immersed in a plating liquid to plating by a DC power source and measuring the potential diffe...
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JP61259701 |
PURPOSE: To continuously obtain a constant condensed solution, by making the ratio of the supply amount and withdrawal amount of a raw solution with a condensation boiler constant and controlling the heating quantity of the condensation ...
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JP61208429 |
PURPOSE: To permit to remove carbon in a short time by a method wherein total heating values and reactor discharge heating values are obtained and estimated as the storage heating values of a reactor in accordance with difference between...
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JP61204556 |
PURPOSE: To perform pH control precisely and easily by dipping an electrode which reacts on an electrolyte solution to vary the H+ and OH- concentrations in the solution and a high polymer electrode which receives and discharge electroly...
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JP61147272 |
PURPOSE: To prevent toner from failing to be charged electrostatically by comparing the signal from a toner concentration detecting means with at least two high and low comparison levels and varying stepwise the amount of toner supplied ...
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JP61129670 |
PURPOSE: To control the concentration of a toner with high precision by stopping, supplying interruptedly, or supplying continuously the toner in accordance with the detected value of the toner concentration of a mixture of the toner and...
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JP61117103 |
PURPOSE: To control the concentration of oxygen to a desired value as quickly as possible by dehumidifying the O2-cong. gas to be fed to an electrochemical oxygen separation apparatus at the midway of a deoxidation passage connecting a c...
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JP60241907 |
PURPOSE: To enhance the responsiveness when the supply is started or the set value is changed by obtaining the deviation of the liquid concn. from the detected value of concn., calculating the necessary amt. to be changed in the supply o...
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JP60222132 |
PURPOSE: To control always adequately the concn. of carbonate in a liquid or suspension by detecting the concn. of the carbonate in the liquid or suspension contg. carbonate by a carbonate detector and adjusting the supply rate of carbon...
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JP60222133 |
PURPOSE: To detect stably the concn. of carbonate and sulfite by controlling the quantity of the hydrochloric acid or sulfuric acid to be supplied in the stage of detecting continuously the concn. of the carbonate and sulfite according t...
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JP60168593 |
PURPOSE: To prevent the flotation of sludge in a final precipitation basin, by providing an air amount regulation part for comparing outputs of the regulation valve provided to an air passage, a pH regulation part and an airflow meter to...
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JP60122335 |
PURPOSE: To prevent the generation of a false output by providing a contact at the center part and circumferential part of one surface of a heat flow meter, embedding this heat flow meter in a wall that a heat flow to be measured penetra...
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JP60074263 |
PURPOSE: To automatically adjust acidity of impregnating solution by leading the impregnating solution in the intermediate case with ladle and calculating added amount of acidic solution through titlation analysis of concentration of aci...
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JP60070191 |
PURPOSE: To perform stably descaling treatment by attaching a voltage detecting circuit and a current detecting circuit to a descaling device which conducts electricity by a pair of electrodes in the water in a pipeline having scale. CON...
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JP60051610 |
PURPOSE: To provide an apparatus for controlling oxygen concentration being freely attachable and detachable to/from a vessel which is meant to contain oxygen of controlled concentration by housing an oxygen concentration meter, a specif...
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JP60036818 |
PURPOSE: To perform rational denitrating control, by a method wherein a flow rate of a reducing material being injected is controlled at each turbine system so that a deviation between a desired value and a detected value corresponding t...
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JP59230622 |
PURPOSE: To prevent the scale adhesion in a washing apparatus, by constantly controlling the CaSO4-concn. in the washing liquid in a washing apparatus by measuring the flow amount of exhaust gas, the O2-concn. in the gas emitting from an...
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JP59197577 |
PURPOSE: To make it possible to automatically prepare a pickling liquid with a predetermined concn. always with high accuracy, by controlling a feed apparatus by an operation apparatus for inputting signals from a densitometer for measur...
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JP59168356 |
PURPOSE: To obtain a monitoring and control apparatus provided with a mechanism estimating dissolved oxygen quantity in side an aeration tank, by measuring with a dissolved oxygen meter dissolved oxygen in a water receiving tank and vari...
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JP59143936 |
PURPOSE: To make it possible to adjust the concentration of oil in an oil material including water without piping work highly reliably with few faults, by detecting the change in buoyancy of a weight suspended in the oil material includi...
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JP59118891 |
PURPOSE: To maintain the residual amt. of the refrigerant to be adhered on a steel wire rod and to enable feedback control by constituting a cascade control system for the concn. of a molten salt which is a refrigerant and the flow rate ...
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JP59118889 |
PURPOSE: To improve considerably a corrosion preventive effect by constituting a titled device in such a way that means for measuring the potential between a vessel body and a corrosion preventive electrode and deciding whether the poten...
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JP59116386 |
PURPOSE: To remove the refrigerant sticking on a steel wire rod to a permissible value or below without wasting washing water by providing means for operating the necessary flow rate of the washing water in accordance with the washing ch...
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JP59109846 |
PURPOSE: To obtain a detector of air contamination capable of removing an abnormal detection value due to a trouble by deciding the input is unsuitable in case of the output of a sensor for detection of contamination is less than a presc...
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JP59097502 |
PURPOSE: To control effectively the concn. of oxygen by providing a deoxidizing function and an oxygen generating function to an oxygen separator. CONSTITUTION: A chamber 1 for controlling the concn. of oxygen is allowed to communicate w...
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JP59093862 |
PURPOSE: To control stably the compsn. concn. of a plating soln. to approximately the same as a set value by determining the amt. of a plating replenisher at the point of the time when said concn. is measured, from the amt. of the platin...
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JP59089757 |
PURPOSE: To obtain a titled device which controls accurately the concn. of a plating soln. compsn. and changes easily the set value for control by dividing the control device into a control terminal part and a main control part, and moun...
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JP59089756 |
PURPOSE: To enable evasion of malfunction owing to a noise signal, simplification in circuit constitution of an amplifier, ease of adjustment and spacing between specific sensor and control units by using said units to a control device a...
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JP59062389 |
PURPOSE: To provide a titled device which stabilizes the control for injection amt. of chlorine and prevents the excessive injection of chlorine by the constitution wherein the chlorine concn. in the original water after chlorin injectio...
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JP59016584 |
PURPOSE: To improve the responsiveness to an abrupt change in load, by constituting a titled device of a measuring device for the concn. of hydrogen ions provided in a supply line for sea water, a calculator which calculates the quantity...
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JP58211645 |
PURPOSE: To eliminate attachment and accumulation of slurry by cleaning a pH electrode with the supply flow of a liquid to be measured while drain ports thereof provided at the bottom and the overflow section of a measuring chamber. CONS...
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JP58211644 |
PURPOSE: To achieve the automatic control of a plating bath by a simple method by measuring the potential of a sample with an ion electrode after the addition of a chemical agent thereto to determine the concentration of all fluorine ion...
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JP58183991 |
PURPOSE: To eliminate the unevenness of a dissolved oxygen value and the unbalance of aeration, by providing a flow meter in the first pool nearest to the inflow source of an aeration tank in each system, an arithmetic unit for calculati...
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JP58153765 |
PURPOSE: To make it possible to carry out the detection of a copper concn., in the titled apparatus for detecting the pH and the copper concn. of an electroless copper plating bath by a glass electrode and an absorptionmeter, by detectin...
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JP58153766 |
PURPOSE: To make it possible to carry out the detection of the alkali concn. of an electroless copper plating bath in high precision, in the titled adjusting method for continuously detecting the alkali concn. of said bath by a glass ele...
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