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7621181 |
Fluid level detector and analyzer
An electronic technique is used for identifying a fluid and determining its level in a container. Specifically, impedance spectroscopy is applied to fluid handling probes such as those employed by...
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7610806 |
Electronic level gage assembly
A thermowell extends downwardly into tank liquids from the roof of the tank. A magnetostrictive wave guide probe is positioned on the inside of the thermowell and a magnetic float is slidably...
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7605748 |
Filling level radar frequency converter
A frequency converter for a filling level radar includes a signal generator unit, a receiver circuit, a transmit coupler, and an amplifier. The amplifier is amplifying the transmit signal at the...
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7602671 |
Oil heating tank meter for monitoring a plurality of variables
A method for measuring a distance of an object with a distance measuring unit, the method including: sending a first signal from the distance measuring unit toward the object; receiving a second...
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7600423 |
Volume or fluid level sensing system and method
A volume or fluid level sensing system as taught by the present invention comprises a flexible bladder, a solenoidal coil, a means for volume or fluid level measurement, and a user interface. Means...
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7592946 |
Level measurement arrangement
A level measurement arrangement for measurement of a level of a product in a container, comprising: a level sensor, having: a mounting element, including a process connector, for mounting the...
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7589664 |
Circuit for multifrequency band radar level gauge
A circuit for a radar level gauge for measuring the level of the surface of a product stored in a container, wherein the gauge includes a radar for transmitting microwave signals from a multiband...
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7589340 |
System for detecting a container or contents of the container
A system for detecting a container or contents of the container. The system includes a diffuser for retaining the container, where the container is configured to hold an active material therein and...
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7587940 |
Liquid level sensor with flow restrictor
A liquid level sensor system actuated by a column pressure includes a hollow member having a distal open end adapted to be positioned into a liquid reservoir to a depth below a liquid surface...
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7587939 |
System and process for monitoring vehicle fuel level
A process is provided for monitoring the amount of fuel remaining in a vehicle's storage tank, the vehicle including a fuel level sensor. The process includes the steps of searching for a refueling...
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7586435 |
Radar level gauge system using a waveguiding structure with periodically arranged reference impedance transitions
A radar level gauge system, for determining a filling level of a product contained in a tank, said radar level gauge system comprising:
a transceiver for generating, transmitting and...
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7581442 |
Optically monitoring fullness of fluid container
A relative fullness of a fluid container is monitored by directing reference light at a bottom surface of the fluid container. The fluid container is designed so that the amount or pattern of...
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7574912 |
Collapsible liquid level measurement device with attachment
A liquid level measuring device includes an elongate handle and an elongate frame arranged in telescoping relationship. The frame is movable between a collapsed position for storage and an extended...
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7568389 |
Liquid detecting apparatus, liquid-amount detecting apparatus, liquid detecting method, and liquid-amount detecting method
A liquid-amount detecting apparatus detects the amount of a liquid in containers. The liquid-amount detecting apparatus includes a liquid detecting circuit and a determining unit. The liquid...
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7557722 |
Enclosure for a wastewater fluid level sensing and control system
An enclosure for a wastewater fluid level sensing and control system is provided. The enclosure for a control panel of the system may comprise a housing and a non-opaque door. Audible and/or...
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7555946 |
Sealed fuel level sensors
A sealed fuel level sensor for a fuel tank is provided. The sealed fuel level sensor includes a frame having a cavity therein. The sealed fuel level sensor further includes a variable resistor...
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7552999 |
Liquid container and circuit board for liquid container
A circuit board ( 32 ) has a board main body ( 32 M), a pair of first electrodes ( 32 d ) for contact with and electrical connection to electrodes ( 91 c ) of a liquid consuming apparatus, the...
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7542866 |
Threshold setting for a radar level transmitter
Disclosed is a method and apparatus for setting threshold values for use by a radar level transmitter to detect reflected wave pulses corresponding to portions of a transmitted microwave pulse...
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7536989 |
Fuel tank cover body
A fuel tank cover body which can be easily manufactured. The fuel tank cover body comprises a cover 2 for closing the opening of a fuel tank; a liquid level detection unit 3 housed in the fuel...
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7533566 |
Fluid measuring device
A fluid measuring device for use in a fluid storage tank, comprising a logic operation unit, a capacitive sensor, and a capacitance sensing circuit; wherein the capacitance sensing circuit is...
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7525476 |
System and method for filling level determination
A method for determining a filling level of a product contained in a tank, by means of a radar level gauge system comprising a transceiver for generating, transmitting and receiving electromagnetic...
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7521944 |
System and method for detecting fluid in terminal block area of field device
A field device detects the presence of fluid in the terminal block area of the field device by generating an alternating current (AC) test current signal and measuring the amplitude of the...
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7515095 |
Silo contents measurement system
An antenna for a level sensing gauge comprises an environmentally sealed chamber extending from the level sensing gauge and mounting and positionable within the interior of a storage compartment,...
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7513153 |
Filling level sensor
The invention relates to a filling level sensor for a fuel tank 2, comprising a ceramic mounting plate 5 with a resistance network 6 arranged thereon and a contact structure 8 for the...
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7513151 |
Protection against the effects of condensate bridges
Apparatus for measuring and/or monitoring a process variable of a medium. The apparatus includes: an oscillatable unit; a driver/receiver unit, which excites the oscillatable unit to oscillate,...
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7498974 |
Radar level gauge with a galvanically isolated interface
A radar level gauge (RLG) using electromagnetic waves for determining a process variable of a product in a tank is provided which includes timing circuitry adapted to provide timing control of a...
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7490515 |
Liquid level measuring system
A non-contact type sensor that measures a liquid level in a non-contact fashion and outputs a measured value as a digital pulse is provided. Then, a sensor-output converting circuit is caused to...
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7490513 |
Method for sensing levels of conductive liquids
A liquid level sensor comprises a plurality of electrodes arranged in a defined relationship with respect to a container filling trajectory, a signal generator coupled to one or more of the...
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7487676 |
Method of and apparatus for measuring a level of liquid in a reservoir, and apparatus for forming a layer on a substrate comprising a liquid level detector
A method of and apparatus for measuring a level of a liquid stored under pressure in a reservoir ensure that the level is measured precisely even when a carrier gas is bubbled through the liquid. A...
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7487057 |
Field device electronics with a sensor mechanism for process measurement
A field device electronics with a sensor unit for process measurements, wherein the field device electronics is connected with the sensor unit over corresponding signal paths, and wherein the field...
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7483795 |
Pressure and temperature compensation algorithm for use with a piezo-resistive strain gauge type pressure sensor
A method of determining a temperature and a pressure in a tank is provided. The method comprises the steps of obtaining sensor data and calculating coefficients. Then, a bridge resistance is...
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7481105 |
Tank system with fuel level gauge
A fuel level gauge includes a measuring pipe configured as a riser pipe that has a fuel inlet opening at one end region defines a measuring distance. The fuel level gauge also includes a fuel level...
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7479787 |
Current regulator for loop powered time of flight and level measurement systems
A protection circuit for a current loop powered level measurement or time of flight ranging apparatus. The protection circuit includes one or more Zener diodes, a leakage current detector circuit...
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7479391 |
Pipetting apparatus with integrated liquid level and/or gas bubble detection
A pipetting apparatus ( 1 ) comprises a fluidic space ( 7 ), to which a pressure transducer ( 11 ) with a pressure sensor ( 12 ) is attached with a gas filled space ( 15 ). The fluidic space ( 7 )...
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7472593 |
Fluid level regulator
A biological specimen collection and transfer system, comprises a biological sample container configured for storing a biological fluid sample, and a fluid level regulator configured to determine a...
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7469584 |
Adjustable liquid gauge
The present invention provides an adjustable portable liquid gauge that allows a person to quickly pour a precise amount of liquid directly into a glass and adjust the height of the adjustable...
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7467548 |
Radar level gauge system and coupling
A radar level gauge system for measuring a filling level of a content contained in a tank is disclosed. The system comprises a transmitter and a probe, configured to guide transmitted microwave...
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7464589 |
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...
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7458261 |
Liquid level detector
Two pairs of regulating means, that is, the first stopper and the second stopper, which regulate a rotary angle range of the magnet holder when the first stopper and the second stopper come into...
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7454969 |
Fuel density measuring device, system, and method using magnetostrictive probe bouyancy
A magnetostrictive fuel level probe includes a spring-loaded foot. The probe shaft of the fuel level probe moves up and down within the spring-loaded foot as a function of fuel density. The...
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7453393 |
Coupler with waveguide transition for an antenna in a radar-based level measurement system
A mechanism for coupling a coaxial waveguide to another waveguide. The mechanism includes a lower or matching waveguide and an impedance transformer. A coaxial port couples the coaxial waveguide to...
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7446695 |
Precision pulse detection system for radar sensors
A precision pulse detection system for time-of-flight sensors detects a zero axis crossing of a pulse after it crosses above and then falls below a threshold. Transmit and receive pulses flow...
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7444864 |
Liquid detecting device, liquid container and method of manufacturing liquid detecting device
A liquid detecting device ( 1200 ) including: a unit base ( 1210 ), provided with a recessed portion ( 1211 ) on an upper face thereof and containing a first material; a sensor base ( 1220 ),...
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7441569 |
Will call wireless tank level monitoring system
A wireless tank level monitoring system is provided. The system includes a transmitter that is located in close proximity to the storage tank. The transmitter is coupled to a remote-ready tank...
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7441454 |
Apparatus for determining and/or monitoring the filling level of a product in a container
The invention relates to a measuring device which determines the filling level by means of high-frequency measuring signals which are guided along a waveguide. The invention is based on the object...
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7434457 |
Fluid property sensors
Micro-Electro Mechanical Systems (MEMS) based fluid sensors adapted to measure physical properties of oilfield reservoir fluids under downhole conditions. Certain embodiments of the invention may...
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7418861 |
Mechanically self actuated liquid level sensor
A liquid level sensor for measuring liquid levels in underground and above ground containers includes a frame formed to have an elongate hollow tubular configuration that encloses a cavity. A cam...
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7401511 |
Coaxial gapless guide-through assembly for a filing level sensor
The present invention relates to a guide-through assembly ( 4 ) for a filling level sensor working according to the principle of delay measurement of guided electromagnetic waves or for a...
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7392700 |
Method and system for determining fuel level
A method and system for determining the level of fuel contained in the tank of a motor vehicle includes a first resistive element disposed in the tank and having a first predetermined length. The...
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7392699 |
Apparatus for use in measuring fluid levels
A device for use in measuring stratified fluid levels in a container is disclosed. The device has a microwave transceiver sensor head attached to a waveguide sensor rod which is enclosed by a gauge...
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