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76results about "Level indicator with buoyant probes" patented technology
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Unanchored sensor for fluid characteristics
A device and method for sensing fluid characteristics, including, temperature, pH and chemistry, comprises a switch affixed to or embedded in a container of a size, shape and density such that said container floats stable in said liquid sensors which measure and report other characteristics of the liquid, such as temperature, pH, viscosity, chemistry or biochemistry.
Owner:HARVARD APPARATUS
Apparatus and method for detecting the displacement
InactiveUS20020005715A1Level indicator with buoyant probesSolid-state devicesElectrical polarityMagnetic poles
An apparatus for detecting the displacement of a magnet is to be provided. The errors on the detected value due to the variation of temperature or that with time are hardly caused in the apparatus. The apparatus can detect the displacement in high resolution and precision. The apparatus is simple in its structure, and it can be expected that the apparatus can be manufactured in low cost. The apparatus is not limited in its application by the range of the displacement of the magnet. Further, a method for detecting the displacement of a magnet will be provided. An apparatus for detecting the displacement of a magnet M, the apparatus being characterized in that it further comprises a plurality of hall devices H0-H7 disposed in a predetermined spacing DP along a displacing path of the magnet in parallel thereto, wherein each of said hall devices includes a magnetically sensitive surface HS through which a magnetic flux from said magnet M permeate to generate an output the polarity and the voltage of which are depend on the direction and the density of the magnetic flux, and said magnetically sensitive surface HS of each hall device is disposed in a predetermined distance from the displacing path of the magnet M in parallel with the direction defined by the magnetic poles, and wherein two adjacent hall devices inverted in the polarity of their output voltages are detected to determine the general position of the magnet, and the precise position of the magnet between these two hall devices is determined on the basis of the output voltages.
Owner:TOKYO KEISO
A method and apparatus for fluid density sensing
InactiveUS20060248952A1Level indicator with buoyant probesMaterial analysis by observing immersed bodiesEngineeringFluid density
Owner:OPW FUELING COMPONENTS
Method and apparatus for detecting displacement of a magnet moved in response to variation of a physical characteristic of a fluid
InactiveUS6563306B2Level indicator with buoyant probesElectric/magnetic position measurementsElectrical polarityMagnetic poles
Owner:TOKYO KEISO
Tank fullness monitoring system
InactiveUS20110277546A1Level indicator with buoyant probesMachines/enginesFluid interfaceMonitoring system
What is disclosed is a tank fullness monitoring system. The tank fullness monitoring system includes a plurality of buoyant sensor nodes coupled in series along a line, where the buoyant sensor nodes are configured to hang in series along the line, and where each of the buoyant sensor nodes is configured to indicate when floating at a fluid interface. The tank fullness monitoring system also includes a control node attached to the tank and coupled to a first one of the buoyant sensor nodes, and configured to monitor the buoyant sensor nodes.
Owner:GEOFORCE
Method and system for remotely processing volumetric data
InactiveUS20060142974A1Effectively efficiently readingLevel indicator with buoyant probesError detection/correctionVolumetric dataEngineering
In accordance with an aspect of the present invention, a system for providing storage tank measurements to a remote location is provided. The system includes a control box configured to take a plurality of readings from within the storage tank and transmit those readings to a master computer. The master computer is configured to receive and store the plurality of readings, and in response to receiving a request for a measurement for the storage tank, calculate the requested measurement utilizing the received readings. The calculated measurements are then transmitted to the device requesting the measurements.
Owner:FUELING TECH
Multiphase-liquid level data logger
A multiphase-liquid level sensing system for sensing a layer depth and thickness of a liquid of a first phase that floats on a liquid of a different second phase includes an elongated stem that defines an elongated cavity. A float, which exhibits a sensible property, is disposed coaxially around the elongated stem and has negative buoyancy relative to the liquid of the first phase and positive buoyancy relative to the liquid of the second phase. A level sensor senses the sensible property and indicates a second phase liquid distance from the float to the bottom of the stem. An overburden sensor extends downwardly from the stem senses total liquid thickness of the liquid above the overburden sensor. A computational circuit calculates a layer depth and thickness of the liquid of the first phase, based on input from the level sensor and the overburden sensor.
Owner:MAHADEVAIAH BASAVARAJ
Tank liquid level gauge system
InactiveUS20100122988A1Level indicator with buoyant probesLarge containersMarine engineeringLevel sensor
A fouling-resistant arrangement useful for guiding lengths of cables having functional devices including a float, counterweight, and indicator bob attached at their ends, collectively useful in indicating the liquid level of a storage tank to which a system as herein provided is attached, to a passer-by upon casual glance.
Owner:CLANTON SHANE H
Fluid monitoring and sampling apparatus
InactiveUS20050210963A1Add featureLevel indicator with buoyant probesMaterial analysis by observing immersed bodiesPull forceEngineering
Fluid monitoring and sampling apparatus including a buoyant element suspended from a filament, a load sensor that senses a tensile force in the filament, a rotation sensor that senses the rotation of the spool around which the filament is wound, wherein the buoyant element is adapted to be initially at least partially submerged at an equilibrium position at an initial level of a fluid, thereby creating a nominal tensile force in the filament, wherein a change in the level of the fluid changes the tensile force in the filament, a positive change in the tensile force corresponding to a downward movement of the buoyant element and a negative change in the tensile force corresponding to an upward movement of the buoyant element, wherein the rotation of the spool corresponds to an amount of distance traveled by the buoyant element, and a sensor for sensing a property of the fluid, the sensor being in communication with a processor above ground.
Owner:YEKUTIELY DAVID +1
Device and method for determining the density of a fluid
InactiveUS20090265132A1Increase heightSimple processLevel indicator with buoyant probesMaterial analysis by observing immersed bodiesEngineeringFluid density
A device for determining the density of a fluid comprises a buoyant body, a spring which engages on the buoyant body and whose elastic deformation is a measure of the buoyancy force of the buoyant body, and a magnet which is designed to sense the elastic deformation of the spring by means of a magnetostrictive position-measuring system. The spring is compressively loaded and, if the buoyancy force of the buoyant body is greater than its weight, said spring acts on the buoyant body underneath its centre of buoyancy. The device is preferably used to determine the density of fuel, a magnetostrictive filling level measuring system which is present in a storage tank for fuel being used.
Owner:FAFNIR
System for measuring level of dry bulk material in container
ActiveUS20140157889A1Inexpensive and accurateEasy to operateVolume measurement apparatus/methodsWeighing apparatus using elastically-deformable membersEngineeringLoad cell
A system for measuring a level of dry bulk material within a container has a columnar device supported vertically within the container. The columnar device has a closed lower end and openings through a sidewall thereof for allowing dry bulk material within the container to flow into and out of the columnar device. A load cell is used to measure a weight of the dry bulk material within the columnar device, which is then correlated to the level of dry bulk solids within the container. The columnar device and the sidewall openings therein can be provided in various shapes and configurations.
Owner:OSBORNE INDS
Optical switch
Owner:COX CHRISTOPHER E
Liquid-level gauge
InactiveUS20020130253A1Precise changeIncrease strainRadiation pyrometryLevel indicator with buoyant probesFiberLevel sensor
There is provided a liquid-level gauge for accurately measuring a liquid-level height of fluid to be measured. In the liquid-level gauge, a float having a uniform cross-sectional form in the height direction and a specific weight value small than that of liquid is dipped in the liquid. The float is supported by an optical fiber at a constant height such that its upper end always projects from the liquid level. One end of the optical fiber is connected to an optical fiber strain gauge and a strain detector is turned round between fiber support members. When the float receives buoyancy from the liquid, tension is applied to the strain detector of optical fiber to generate strain therein. By detecting the strain by means of an optical fiber strain gauge, a liquid-level height can be measured.
Owner:NTT ADVANCED TECH
Servo- type level meter
ActiveCN101334307ASolve power problemsEasy to useLevel indicator with buoyant probesLevel indicators by floatsLevel sensorEngineering
The invention discloses a servo liquid level meter which comprises a floater which is provided with measuring elements, such as a temperature sensor, a pressure sensor and an interface sensor, etc., and an operating circuit is arranged in the floater, a contact is arranged on the shell of the floater and connected with the operating circuit in the floater. When the floater moves up and down, the contact can be contacted or disconnected with a contact electrode, when the contact electrode is contacted with the contact, a mainboard of the liquid level meter detects the voltage of a power circuit in the floater by the contact, and charges the power circuit in the floater according to the detection result, the operating circuit can also exchange information with the exterior by the contact. The servo liquid level meter has the advantages of convenient usage, stable working voltage and accurate measurement.
Owner:范明军
Method and system for remotely processing volumetric data
InactiveUS7209865B2Effectively efficiently readingLevel indicator with buoyant probesError detection/correctionVolumetric dataEngineering
In accordance with an aspect of the present invention, a system for providing storage tank measurements to a remote location is provided. The system includes a control box configured to take a plurality of readings from within the storage tank and transmit those readings to a master computer. The master computer is configured to receive and store the plurality of readings, and in response to receiving a request for a measurement for the storage tank, calculate the requested measurement utilizing the received readings. The calculated measurements are then transmitted to the device requesting the measurements.
Owner:FUELING TECH
System for monitoring coastal underground water
ActiveUS20130289878A1Raise the alarmEasy to manageLevel indicator with buoyant probesSurface/boundary effectSaline waterFresh water organism
A system for monitoring coastal underground water is disclosed. The system includes a freshwater / saltwater interface position tracking device that is inserted into an observation well used for observing coastal underground water and can move on a freshwater / saltwater interface according to a change of buoyancy; and a first measuring sensor that is inserted into the observation well so as to be placed at a position above the freshwater / saltwater interface position tracking device and has a distance measuring unit used for measuring a first distance between the freshwater / saltwater interface position tracking device and the first measuring sensor, wherein the first measuring sensor has a first signal output unit used for outputting a signal indicative of the measured first distance.
Owner:KOREA INST OF GEOSCI & MINERAL RESOURCES
Method and apparatus for material indentification by means of gravitational field analysis
InactiveUS7240550B2Cost effectiveHigh sensitivityLevel indicator with buoyant probesMachines/enginesEngineeringLevel measurement
Owner:VEGA GRIESHABER GMBH & CO
Automatic monitoring system for thermal energy storage plants
Owner:COLASSO FRANCISCO J +2
Multiphase-liquid level data logger
A multiphase-liquid level sensing system for sensing a layer depth and thickness of a liquid of a first phase that floats on a liquid of a different second phase includes an elongated stem that defines an elongated cavity. A float, which exhibits a sensible property, is disposed coaxially around the elongated stem and has negative buoyancy relative to the liquid of the first phase and positive buoyancy relative to the liquid of the second phase. A level sensor senses the sensible property and indicates a second phase liquid distance from the float to the bottom of the stem. An overburden sensor extends downwardly from the stem senses total liquid thickness of the liquid above the overburden sensor. A computational circuit calculates a layer depth and thickness of the liquid of the first phase, based on input from the level sensor and the overburden sensor.
Owner:MAHADEVAIAH BASAVARAJ
Compositions and Methods for Treating Female Sexual Dysfunction
InactiveUS20090264413A1Reducing concomitant liabilityEffective treatmentBiocideLevel indicator with buoyant probesGynecologyBULK ACTIVE INGREDIENT
This invention relates to methods, pharmaceutical compositions and kits useful in treating female sexual dysfunction and the use of an estrogen agonist / antagonist for the manufacture of a medicament for the treatment of female sexual dysfunction. The compositions are comprised of an estrogen agonist / antagonist as a first active ingredient and a cyclic guanosine 3′,5′-monophosphate elevator as a second active component and a pharmaceutically acceptable vehicle, carrier or diluent. The compositions and methods of treatment are effective while substantially reducing the concomitant liability of adverse effects associated with estrogen administration.
Owner:PFIZER INC
System for monitoring coastal underground water
ActiveUS9964425B2Raise the alarmEasy to manageLevel indicator with buoyant probesSurface/boundary effectSaline waterFresh water organism
A system for monitoring coastal underground water is disclosed. The system includes a freshwater / saltwater interface position tracking device that is inserted into an observation well used for observing coastal underground water and can move on a freshwater / saltwater interface according to a change of buoyancy; and a first measuring sensor that is inserted into the observation well so as to be placed at a position above the freshwater / saltwater interface position tracking device and has a distance measuring unit used for measuring a first distance between the freshwater / saltwater interface position tracking device and the first measuring sensor, wherein the first measuring sensor has a first signal output unit used for outputting a signal indicative of the measured first distance.
Owner:KOREA INST OF GEOSCI & MINERAL RESOURCES
Material level measuring device
ActiveCN103852134AAccurate measurementImprove securityLevel indicator with buoyant probesLevel indicators by weight measurementElectricityWeight change
The invention discloses a material level measuring device which is used for measuring the material level height of a solid stock bin. The material level measuring device comprises a weight, a PLC (Programmable Logic Controller), a lifting mechanism which is used for driving the weight to lift, a displacement measuring device used for measuring the displacement of the weight and a sensing device used for sensing the weight change of the weight, wherein the lifting mechanism, the displacement measuring device and the sensing device are respectively connected with the PLC electrically. The device also comprises an over protection device which is used for performing limit protection in the lifting process of the weight, and is electrically connected with the PLC. The device is suitable for the material level measurement of the solid stock bin with bad environment and more dust; the over protection device is arranged for performing limit protection when the weight is lifted; the device is not easily influenced by dust in the measuring process, and the measurement result is accurate; the device has the advantages that the cost is low, the antijamming capability is strong, the structure is simple, the operation is convenient, and safety and reliability are high.
Owner:ANHUI UNIV OF SCI & TECH
Submarine sampler
InactiveUS20060000278A1Level indicator with buoyant probesMachines/enginesLine tubingAutomatic control
A flooded bin measurement system is provided that includes a submarine sampler for ascending and descending within a liquid of a bin and for measuring the depth of fluid at the submarine sampler's location. In one embodiment, the submarine sampler may ascend and descend along a vertical guide based on adjustments to it buoyancy compared with the liquid in the bin, which may be controlled manually and / or automatically. The measurement system may include a bubbler system for measuring hydrostatic pressure at the submarine sampler for determining its depth within the fluid of the bin. The submarine sampler may include a device having a hollow interior, an open bottom and an air supply line connected to the hollow interior. According to a further embodiment of the invention, the submarine sampler may be fixed to a line that is connected to a counterweight at its opposite end.
Owner:THE MOSAIC COMPANY
Device and method for detecting material by means of gravitational field analysis
InactiveUS20070157724A1Cost effectiveHigh sensitivityLevel indicator with buoyant probesFlow propertiesLevel measurementGravitational field
Owner:VEGA GRIESHABER GMBH & CO
Submarine sampler
A flooded bin measurement system is provided that includes a submarine sampler for ascending and descending within a liquid of a bin and for measuring the depth of fluid at the submarine sampler's location. In one embodiment, the submarine sampler may ascend and descend along a vertical guide based on adjustments to it buoyancy compared with the liquid in the bin, which may be controlled manually and / or automatically. The measurement system may include a bubbler system for measuring hydrostatic pressure at the submarine sampler for determining its depth within the fluid of the bin. The submarine sampler may include a device having a hollow interior, an open bottom and an air supply line connected to the hollow interior. According to a further embodiment of the invention, the submarine sampler may be fixed to a line that is connected to a counterweight at its opposite end.
Owner:THE MOSAIC COMPANY
Tank mass measurement assembly
InactiveUS20070227272A1Level indicator with buoyant probesWeighing apparatusEngineeringMass measurement
A tank mass measuring assembly (10) for monitoring an amount of a fluid (20) stored in a tank (12). The monitoring assembly includes a mass measurement chamber (42) adapted to be located remotely of a tank and adapted to be coupled in fluid communication with the tank to receive a portion of a fluid stored in the tank. The monitoring assembly further includes a sensor assembly (16) at least partially disposed in the mass measurement chamber, the sensor assembly adapted to measure a mass of the fluid disposed in the mass measurement chamber. The sensor assembly is adapted to relay the measured mass to a computation device (90) for determining the amount of the fluid in the tank based upon the measured mass of the fluid disposed in the mass measurement chamber.
Owner:NORTHROP CHARLES L
Underground water level observation device for hydrogeology
PendingCN114396985AAvoid bendingPrevent situations that cause inaccurate measurementsLevel indicator with buoyant probesMachines/enginesStructural engineeringWater level
Owner:叶薇
Water storage equipment and water level alarm thereof
InactiveCN105716689ALower the water levelLevel indicator with buoyant probesPisciculture and aquariaWater storageAudio power amplifier
The invention discloses a water level alarm which comprises a first magnet, a second magnet, a conducting wire, an insulating connecting wire, a floating body, an amplifier and an alarm element, wherein the conducting wire penetrates through the seam between the north pole of the first magnet and the south pole of the second magnet; the floating body floats in water of water storage equipment. When the water level of the water storage equipment is lower than a reference value, the floating body tightens the insulating connecting wire, the insulating connecting wire drives the conducting wire to vibrate within the seam, a magnetic induction wire between the north pole of the first magnet and the south pole of the second magnet is cut by the conducting wire so as to generate inductive current, and the inductive current is amplified by the amplifier and is output to the alarm element so as to control the alarm element to make an alarm. By adoption of the water level alarm disclosed by the invention, an alarm can be made when the water level of the water storage equipment is lower than a reference value. The invention further provides water storage equipment using the water level alarm.
Owner:FU TAI HUA IND SHENZHEN +1
Electromechanical fill level measurement unit
ActiveCN103380355ASimple structureReduce manufacturing costLevel indicator with buoyant probesMachines/enginesMeasurement deviceControl signal
An electromechanical, fill-level, measuring device, comprising: a float, an outer drum with an outer ring of magnets, an inner drum with an inner ring of magnets, electromagnetic measuring elements, a measuring shaft with, and a servomotor with an drive shaft. The drive shaft is coupled with the measuring shaft via a transmission, wherein the servomotor rotates the measuring shaft via the transmission as a function of a control signal ascertained from the difference value of the measuring elements, so that, by relative movement between the outer and inner drums produced by a change of the liquid level to be measured, the difference value is returned to zero and from the rotation of the measuring shaft the current fill level measured value is ascertained. Sensor electronics is arranged on the measuring shaft within the inner drum, and radial, rotary transformer is embodied on the measuring shaft for transmitting at least the control signals from the sensor electronics to the main electronics and supplying for at least the sensor electronics with energy.
Owner:EHNDRESS KHAUZER GMBKH KO KG
Automatic detection device and method for underwater concrete casting interface
ActiveCN106679759ASimple structureEasy to processLevel indicator with buoyant probesMachines/enginesMaterials science
Owner:CHINA RAILWAY FIRST GRP CO LTD
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