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Document Title |
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8109127 |
Measurement of entrained and dissolved gases in process flow lines
A device for measurement of entrained and dissolved gas has a first module arranged in relation to a process line for providing a first signal containing information about a sensed entrained...
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8091407 |
Method and device for monitoring a flow of liquid for the presence of air by means of ultrasound
The invention relates to a method and a device for monitoring a flow of liquid for the presence of air bubbles, in particular the blood flowing in an extracorporeal blood circuit of an...
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8091442 |
Positive tube retention arrangement
A measuring head has a base and extending spaced apart vertical sidewalls that form a slot into which a tube through which a fluid flows is placed and at least one sensor element mounted in at...
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7921691 |
Acoustic fluid analyzer
A method of determining properties of a formation fluid based on measurements of fluid sound speed, a measurement of fluid density, or both. The properties include compressibility, thermal...
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7905099 |
Predictive maintenance method and apparatus for HVACR systems
A predictive maintenance method and apparatus for HVACR systems including a sensor capable of detecting the presence of a gaseous phase in the refrigerant fluid at a location wherein solely liquid...
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7818992 |
Universal air bubble detector
A universal air bubble detector allows for use with a variety of sizes and types of tubing. The detector maintains proper alignment of a sensor emitter and receiver with different sizes of tubing....
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7816837 |
Surface acoustic wave sensor
A surface acoustic wave sensor for detecting a target substance by measuring the change in frequency due to the mass applied to a reaction membrane placed on a surface acoustic wave element having...
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7805978 |
Method for making and using an air bubble detector
A universal air bubble detector allows for use with a variety of sizes and types of tubing. The detector maintains proper alignment of a sensor emitter and receiver with different sizes of tubing....
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7788979 |
Monolithic antenna excited acoustic transduction device
A Monolithic Antenna Excited Acoustic Transduction (MAEAT) device is fabricated by photolithographically depositing a metallic antenna on one side of a piezoelectric crystal substrate.
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7726174 |
Universal air bubble detector
A universal air bubble detector allows for use with a variety of sizes and types of tubing. The detector maintains proper alignment of a sensor emitter and receiver with different sizes of tubing....
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7661293 |
Ultrasonic system for detecting and quantifying of air bubbles/particles in a flowing liquid
A system using ultrasonic energy for detecting and quantifying air bubbles and/or particles in a liquid flowing in a tube by a non-invasive and non-destructive technique has an ultrasonic sensor...
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7661294 |
Non-invasive multi-function sensor system
An integrated multi-function sensor system has a head having a slot to accept a tube of a deformable material and a plurality of sensor elements mounted in the walls of the head slot to confront a...
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7617716 |
Total gas meter using speed of sound and velocity measurements
An apparatus is provided for measuring total gas content of a fluid flowing through a process line. The apparatus comprises a bleed line in fluid communication with the process line for bleeding a...
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7571633 |
Measurement of entrained and dissolved gases in process flow lines
A device for measurement of entrained and dissolved gas has a first module arranged in relation to a process line for providing a first signal containing information about a sensed entrained...
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7555938 |
Thermoelastic self-actuation in piezoresistive resonators
Systems and methods for thermally actuating piezoresistive cantilevers are described. One embodiment includes a nanoelectromechanical resonator connected in at least one location to a substrate, an...
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7543476 |
Rupture event sensors
An apparatus for separating an analyte from a mixture or for detecting an analyte or for determining the affinity, or a property related to affinity, between binding partners includes: a) a surface...
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7539081 |
Seabed resource exploration system and seabed resource exploration method
A seabed resource exploration system includes: a vibrator 1 for transmitting a sound wave into the sea and receiving a scattered wave in which the sound wave is reflected on a boundary surface...
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7530268 |
Device for determining and/or monitoring at least one physical or chemical process variable of a medium in a container
An apparatus for determining and/or monitoring at least one physical or chemical, process variable of a medium and includes at least one mechanically oscillatable unit and at least one...
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7523640 |
Acoustic fluid analyzer
A method of determining properties of a formation fluid based on measurements of fluid sound speed, a measurement of fluid density, or both. The properties include compressibility, thermal...
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7524460 |
System and method of molecule counting using fluctuation enhanced sensors
A System and Method of Molecule Counting Using Fluctuation Enhanced Sensors includes processes for improved chemical analyte detection and quantification through the measurement and generation of...
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7257988 |
Densitometer with pulsing pressure
Techniques for measuring a density of a liquid within a fluid that includes both a liquid and a gas are described. A pressure of the fluid oscillates according to a time-varying function, which...
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7096719 |
Apparatus for measuring parameters of a flowing multiphase mixture
An apparatus 10 is provided that measures the speed of sound propagating in a multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor...
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6874351 |
Determining the quantities of gases dissolved in a liquid
A method for determining the content quantities, solubilities and/or saturation pressures of gases dissolved in a liquid, which is characterized in that in order selectively to determine the...
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6813928 |
Sensor system and method employing shared transducer elements
A transducer-based sensor system including a first transducer system and a second transducer system spaced from the first transducer system so as to define a sample area between the first...
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6784381 |
Method of manufacturing a microbalance
22A temperature and/or pressure compensated microbalance is disclosed. Temperature compensation is achieved by applying heat to at least a part of the microbalance, measuring a...
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6699191 |
Ultrasound device to detect Caisson's disease
An ultrasound device having a transducer propagating and receiving sound signals to/from a blood vessel of a person being examined for caisson's disease where the blood vessel is at above normal...
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6629449 |
Bubble measuring instrument and method
Method and apparatus are provided for a non-invasive bubble measuring instrument operable for detecting, distinguishing, and counting gaseous embolisms such as bubbles over a selectable range of...
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6622542 |
Bubble detector and method of use thereof
A bubble detector utilizes an ultrasonic transducer to sample bubbles as they pass the transducer. The envelope of the return signal is analyzed to determine the volume of each sampled bubble. If...
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6598457 |
Method and apparatus for measuring the amount of entrained gases in a liquid sample
A method and an apparatus are provided for measuring the amount of entrained gases in a liquid sample. A conduit defining a volume is provided. The conduit has an inlet at a lower end thereof and...
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6595035 |
Sealant stream anomaly detecting assembly
A sealant stream anomaly detecting assembly for detecting anomalies such as gas bubbles in a high-pressure sealant stream. The assembly includes an ultrasonic transducer supported on a manifold...
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6581452 |
Apparatus for measuring volume under microgravity
Volume measuring apparatus is used in a closed space as in the case of volume measurement of liquid in a container placed on an orbit of an artificial satellite and permits the volume measurement...
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RE38129 |
Phase change analysis in logging method
An improved method of fluid analysis in the borehole of a well. A fluid sampling tool is fitted with a pumpout module that can be used to draw fluids from the formation, circulate them through the...
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6515487 |
Low voltage low current bubble detection circuit
A low voltage, low current apparatus for detecting discontinuities, such as bubbles, in a fluid stream, in which a tube is placed between a transducer transmitting successive bursts of ultrasonic...
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6497140 |
Cavitation sensor
A cavitation sensor includes an ultrasonically absorbent coating (20) disposed around a piezoelectric element (30) and a conduit (25). The conduit (25) includes a boundary delimited by the...
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6401538 |
Method and apparatus for acoustic fluid analysis
A method is provided for analyzing suspended particulate and liquid medium in a fluid stream by transmitting acoustic signals into the fluid, detecting scattered acoustic energy, and determining a...
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6389877 |
Double-headed mass sensor and mass detection method
There is provided a double-headed mass sensor (25) in which between a first connecting plate (22A) joined to a first diaphragm (21A) at respective sides and a second connecting plate (22B) joined...
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6370939 |
Apparatus and method for measurement of mass and heat flow changes
Provided are a measurement apparatus and a measurement system comprising sample and reference microresonators, such as sample and reference quartz crystal microbalances; sample and reference heat...
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6293136 |
Multiple mode operated surface acoustic wave sensor for temperature compensation
A surface acoustic wave device sensor configured so as to have at least two different modes of operation. An acoustic response is obtained from each of the different modes of operation. The...
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6282949 |
Apparatus for detection of inhomogeneities in a liquid flow
An apparatus for detecting gas bubbles, in a liquid flow, comprises a one-piece housing (1) of a material that is transmissive to ultrasound, a liquid passage (2) extending through the housing (1),...
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6223588 |
Dew point and bubble point measurement
Apparatus and method for detecting the dew point or bubble point phase transition in fluid. The apparatus used comprises a piezoelectric crystal sensor and a signal analyser. The phase transition...
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6212936 |
Ultrasonic transmitter particularly for an air bubble detector
An ultrasonic transmitter, particularly for an air bubble detector, having a transmitting stage and an ultrasonic crystal. The transmitting stage includes a multivibrator having a time-base circuit...
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6189367 |
Apparatus and method for simultaneous measurement of mass and heat flow changes
Provided is a mass and heat flow measurement apparatus comprising sample and reference microresonators, such as sample and reference quartz crystal microbalances; sample and reference heat flow...
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6167747 |
Apparatus for detecting hydrocarbon using crystal oscillators within fuel dispensers
A vapor recovery system is disclosed that utilizes a crystal oscillator for sensing the presence of hydrocarbon in the vapor emissions emanating from a fuel tank during refueling. The crystal...
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6142008 |
Air bubble sensor
A system and a method for detecting the presence of air bubbles in an intravenous (IV) line supplying a medicinal liquid to a patient. An air bubble sensor includes an ultrasonic transmitter...
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6085574 |
Device for controlling a liquid flow in a tubular duct and particularly in a peristaltic pump
A device for sensing gas bubbles in a liquid flowing through a duct, particularly the outlet duct of a peristaltic pump, including two piezoelectric components shaped and excited so that they...
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6076406 |
Integrated sensing platform and method for improved quantitative and selective monitoring of chemical analytes in both liquid and gas phase
By measuring two or more physical parameters of a thin sensing film which are altered when exposed to chemicals, more effective discrimination between chemicals can be achieved. In using more than...
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6012324 |
Method for measuring gas content and a gas content measuring device
The invention relates to a method for measuring gas content in a fluid, such as papermaking pulp or coating paste, and to a gas content measuring device. Pressure variations generated by a pump,...
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5974863 |
Method and device for liquid leakage indication
Method and device for indicating movements of gas bubbles in a liquid, droplets of liquid in a gas or a level of liquid, the liquid or the gas forming a medium in a conduit (15) or a container....
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5811659 |
Infusion hose for an infusion device with a bubble detector
On an infusion hose for an infusion device on which a column of liquid is permanently maintained at least in one section of the infusion hose and on which adjacent to that section there is arranged...
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5777278 |
Multi-phase fluid flow measurement
A method and apparatus is disclosed to identify fluid hydrocarbon flow rates in a flow line such as a pipeline or a producing oil well having a unidirectional fluid flow including moving an...
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