166 results about "Fluid interface" patented technology

An apparatus for use in circulating cement in a casing in a wellbore is described having a first component such as a sensor disposed on the casing and a second component such as a detectable device disposed at a fluid interface formed between the cement and a fluid. The sensor may be a sensor coil mounted on the perimeter of the lower end of the casing, while the detectable device may be a transponder capable of emitting Radio Frequency Identification signals to the sensor to signal its arrival at the lower end of the casing. The transponder may be encased in a protective covering. Also described is a method of cementing a casing utilizing a first component such as a sensor disposed on the casing and a second component such as a detectable device disposed in the cement.

Embodiments of the present invention provide a system and method for detecting the level of a fluid in a surgical cassette by projecting light from a linear light source into a wall of a cassette. Depending on the amount a light reflected or refracted in the cassette (i.e., due to the cassette material/fluid interface or cassette material/air interface (or other interface)) various portions of a linear sensor array will be more or less illuminated. By examining the illumination of the linear sensor array, the level of fluid in the chamber can be determined.

An interface cartridge for a microfluidic chip, with microfluidic process channels and fluidic connection holes at opposed ends of the process channels, provides ancillary fluid structure, including fluid flow channels and input and/or waste wells, which mix and/or convey reaction fluids to the fluidic connection holes and into the process channels of the microfluidic chip.

An enhanced heat transposer comprised is of a vapor chamber. The surface of the vapor chamber that holds the fluid comprises an array of carbon nanotubes (CNTs) that are grown in a way that enables the fluid to come into maximum contact with the CNTs. The fluid evaporates in the sealed vapor chamber when it is in touch with a hot surface. The vapor comes in contact with a hollow pin-fin structure that provides additional surface area for vapor cooling and heat transfer. The condensed vapor then drops back into the fluid container, and the cycle continues.

Optical devices, systems, and methods can produce and/or measure cylindrical (as well as spherical) lens shapes throughout a range of both powers and cylindrical axes. Fluid focus lenses employ electrical potentials to vary the shape of a fluid/fluid interface between two immiscible fluids having differing indices of refractions by controlling localized angles between the interface and a surrounding container wall. Spherical power, cylindrical power, and cylindrical access alignment may be varied with no moving parts (other than the fluids).

A device and system for dispensing medical active ingredients. Medical active ingredients may be, e.g., drugs or anesthetics, which enter the patient's bloodstream. Injection pumps and perfusors are usually used for their dispensing, and vapors are frequently used in the case of inhalation anesthetics. The device permits the dispensing of a plurality of medical active ingredients, in which the rates of dispensing can be set precisely and changed with rapid action. This is accomplished by the series connection of a plurality of devices according to the present invention, which are designed as modules. Each module comprises a cartridge (6) as well as a delivery device (8) for delivering the particular medical active ingredient to be administered to a fluid interface (18), which leads to a supply line (16) designed either as an infusion line or as a respiration tube. The module has a coupling means (9, 10, 11, 12).

A battery interface module is provided that includes a housing and a battery interface carried by the housing and configured to interface with a battery. The battery interface may include a first power bus interface, a first fluid interface and a first data interface. The battery interface module may also include first and second transmission interfaces carried by the housing. At least one of the first and second transmission interfaces may be configured to interface with another battery interface module. Each transmission interface may include a second power bus interface, a second fluid interface and a second data interface. Additionally, the first and second power bus interfaces may be in electrical communication, the first and second fluid interfaces may be in fluid communication and the first and second data interfaces may be communicably connected.

A bladder system and apparatus for use with a beverage barrel or container, to reduce undesirable head-space in a wooden container of a beverage, especially a fermented beverage, such as wine. The system continuously protects the beverage contained in a wooden barrel from the harmful effects of oxidation at the air-to-fluid interface in the head-space and compensates for ullage, attributable to evaporation, leakage or sampling losses. The system includes an inflation stem connected to a barrel bladder inflatable by filling with an inflation gas. The inflation stem includes a liquid level sensor and inserts into a bung opening. The fluid level is sensed and a gas valve opens to fill the bladder, reducing head-space within the barrel. The system can combine the control of several barrels and optionally with other sensors, to create a barrel monitoring and control network.

A fluid interface port in a microfluidic system and a method of forming the fluid interface port is provided. The fluid interface port comprises an opening formed in the side wall of a microchannel sized and dimensioned to form a virtual wall when the microchannel is filled with a first liquid. The fluid interface port is utilized to fill the microchannel with a first liquid, to introduce a second liquid into the first liquid and to eject fluid from the microchannel.

Disclosed is a fluid testing device which utilizes a small, cross-section fluid interface to separate a test fluid chamber from a drive and measuring chamber. The test fluid chamber contains the test fluid and a paddle-type fluid test assembly. The drive and measuring chamber contains a second fluid and assemblies for moving the paddle and for determining the resistance movement. The two chambers are connected together by a narrow cross-section passageway allowing for continuous testing while test fluids are flowed through the test chamber and for successive testing of different samples without breaking down the device between tests. A pair of coaxial shafts extends between the test fluid chamber and the drive and measuring chamber. The shafts are connected together by a spring located in the drive chamber whereby the resistance to movement is determined by measuring the deflection in the spring. The shafts are magnetically coupled to a motor to rotate the shafts.

The invention relates to a hydraulic control unit performance test station for a stability control system in vehicle dynamics and belongs to the technical field of automobile manufacturing. The test station comprises a flat workbench, an HCU fast limiting and oil circuit sealing platform which is arranged on the workbench, a controller, a sealing feeding differential hydraulic cylinder, a hydraulic test system, a vehicle braking system, and a pressure source; the controller is respectively connencted with the HCU fast limiting and oil circuit sealing platform, the differential hydraulic cylinder and the hydraulic test system by a circuit; the differential hydraulic cylinder contacts the HCU fast limiting and oil circuit sealing platform; the hydraulic test system is connencted with the HCU fast limiting and oil circuit sealing platform by a test oil circuit; the vehicle braking system is connencted with the HCU fast limiting and oil circuit sealing platform by a braking fluid interface pipeline; and the hydraulic test system and the oil circuit sealing differential hydraulic cylinder are connencted with the pressure source by a hydraulic pipeline. The invention meets the delivery inspection needs of HCU, has easy and quick operation, and achieves low cost.

A fluid level measurement device includes a cable arranged to penetrate fluid to be measured at least to a measurement depth. The cable has first and second conductors. The fluid imposes a dielectric constant on the cable. The device also includes a signal generating arrangement configured to introduce an input signal into the cable and a signal receiving arrangement configured to receive a reflected signal from the cable. The device also includes analysis circuitry configured to analyze the reflected signal in the time domain to thereby determine a depth of at least one fluid interface.

The method and system for measuring a fluid level in a container according to the present invention allow measuring fluid level in confined volumes where, for example, there is no sufficient space to locate the ultrasonic transducer, where the fluid level constantly changes, such as in a vehicle gas tank, where the properties of the fluid or geometry of the tank changes with the environmental conditions, or where a high precision is required. The method composes i) emitting an ultrasound beam from a source along an ultrasound beam path generally oriented towards the bottom of the container, ii) receiving ultrasound echo values indicative of changes of environment along the ultrasound beam path; and iii) using the echo values to determine distance from the source of the changes of environment along the ultrasound beam path; whereby, a fluid level in the container is determined by associating at least one of said echo values to a fluid interface. A waveguide in the form of a pipe may be used in defining the ultrasound beam path and reduced clutter. A fixed target along the ultrasound beam path allows continuous calibration of the system to cope for environment changes in the container and for changes of properties of the fluid. A measurement window can further be used to minimize false reading and to cope with environment changes.

A beverage vending machine has a housing, in which first means for brewing and dispensing a coffee beverage prepared using freshly ground coffee are housed. Flexible configuration is made possible in that the first means have a modular construction and comprise at least one base module for brewing the coffee beverage and a separate outflow module for dispensing the coffee beverage, which are in fluid connection with one another by means of one or more fluid interfaces.

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.