| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073861050 | By measuring transit time of tracer or tag | 20 |
| 20090038407 | METHOD OF GAS OR LIQUID FLOW VISUALIZATION ON AN OBJECT SURFACE - The invention relates to the field of experimental aero- and hydrodynamics, particularly to optical methods of studying a structure of a gas or liquid stream on object surfaces. The invention makes it possible to study several flow modes per a single preparation of an object. A surface to be studied is coated with a viscous liquid (VL) layer having optically foreign particles insoluble in the VL. Particles subjected to an outer stream move together with the VL. Two or more sequential images of a particle distribution on the object surface to be studied are recorded in a gas or liquid flow mode of interest. Particle motion parameters are determined by analyzing the recorded sequence of images. Reconstructing the pattern of the gas or liquid flow on the object surface. The object can be used for studying other flow-around mode without additional preparation due to sufficiency of a small displacement of particles for reconstruction of the flow pattern. To visualize surface flows on a movable object, an ensemble of markers rigidly bound with the object surface and optically distinguishable from the particles introduced into the VL are applied onto said surface, images of said marker ensemble are recorded simultaneously with recording particle distribution images, motion parameters of the object as a whole are determined by analyzing the recorded sequence of marker images, parameters of a particle motion within the viscous liquid layer are compensated by a motion of the object as a whole, and the gas or liquid flow pattern on the movable object surface is reconstructed from the obtained parameters of the compensated particle motion. | 02-12-2009 |
| 20090126503 | Heat Signal Writing Device - A heat signal writing device forming a clear writing pattern of a heat signal is provided. A heat signal writing device | 05-21-2009 |
| 20090173166 | MULTI-SENSOR MASS FLOW METER ALONG WITH METHOD FOR ACCOMPLISHING SAME - A device for measuring fluid flow rates over a wide range of flow rates. The invention is particularly adapted for use in micro-fluidic systems including fluids administration to a body of a patient. The device operates by producing characteristics variations in the fluid, or pulses, that are subsequently sensed by more than one detector spaced apart from the point of creation of the mark to derive a flow rate. Each pulse comprises a small fluid volume, whose characteristics are different from the mean characteristics of the fluid, such as by composition variations created by electrochemical means, such as by electrolysis of a solvent, electrolysis of a dissolved species, or electrodialysis of a dissolved ionic species, or a thermal variation created by focused electromagnetic radiation. The device comprises at least two detectors (also sometimes referred to as sensors) to improve the accuracy of the measurement in varying flow rates, to compensate for errors resulting from the drift of the pulses in the fluid, to compensate for varying or unstable flow rates, and to establish a positive signal for sub-range flow. A method of measuring fluid flow rate is proposed where measurements comprising data of one mark from at least two sensor readings plus one other time event are combined to determine the reported flow rate. | 07-09-2009 |
| 20110011183 | METHOD AND APPARATUS FOR IN SITU TESTING OF GAS FLOW CONTROLLERS - Methods and apparatus utilize a rate of drop in pressure upstream of a gas flow controller (GFC) to accurately measure a rate of flow through the GFC. Measurement of the gas flow through the many gas flow controllers in production use today is enabled, without requiring any special or sophisticated pressure regulators or other special components. Various provisions ensure that none of the changes in pressure that occur during or after the measurement perturb the constant flow of gas through the GFC under test. | 01-20-2011 |
| 20110154910 | ANALYSIS DEVICE AND ANALYSIS METHOD - The present invention relates to an analysis apparatus | 06-30-2011 |
| 20110203386 | OPTICAL MULTIPHASE FLOWMETER - Method and apparatus enable direct measurement of at least one flow velocity for one or more phases within a multiphase fluid mixture flowing in a conduit. Some embodiments provide determination of actual individual phase flow rates for three phases (e.g., oil, water and gas) that are distinct from one another within the fluid mixture. A multiphase flowmeter according to embodiments of the invention includes at least two optical sensors spatially distributed along a length of the conduit and designed to detect light interactions with the fluid mixture unique to the phases such that detected time-varying signals can be processed via cross-correlation or an array processing algorithm to provide desired individual phase flow velocity for oil, water and/or gas phases. This flow velocity can be applied to phase fraction measurements, which can be obtained utilizing the same flowmeter or another separate device, to calculate the flow rates for the phases. | 08-25-2011 |
| 20120260741 | DETERMINATION OF PIPE INTERNAL CROSS-SECTIONAL AREA - A method is provided of determining the internal cross-sectional area of a pipe along its length. The method includes the steps of: | 10-18-2012 |
| 20130139607 | Time Delay Adjustment Mechanism for Sprinkler System Water Flow Detector - A water flow detector has a spring driven mechanical timer responsive to the movement of a lever. The lever is connected to a paddle. The paddle is responsive to the flow of water in a pipe. The detector via the spring driven timer responds to the flow of water in the pipe after a predetermined delay. | 06-06-2013 |
| 20150033872 | MICROFLUIDIC PLATFORM AND METHODS FOR USING THE SAME - The present invention provides a microfluidic device which includes at least 3 chambers, a chamber inlet, at least 2 dichotomously branching generations of channels, a channel inlet, and a channel outlet, wherein the channels and the chambers are separated by deformable walls, wherein each wall is lined with at least one cavity, and wherein the cavity is fluidly connected to the channel. | 02-05-2015 |
| 20160069720 | Inline Flow Rate Meter With Auxiliary Fluid Injection And Detection - A continuous, inline, flow rate measurement system for rapidly measuring a flow rate in an analytical instrument having a primary pump that outputs a primary fluid at the flow rate to be measured or verified. The flow rate measurement system includes an auxiliary pump that outputs an auxiliary fluid bubble having a detectable characteristic that is distinguishable from the primary fluid, a bubble injection system that injects a small portion of the auxiliary fluid into the conduit, and a bubble detection system for measuring the position of the auxiliary fluid bubble as a function of time based on a time of detecting the detectable characteristic of the auxiliary fluid, and a controller for converting the measured position of the auxiliary fluid bubble as a function of time into a volumetric flow rate based on a known volume of the conduit. | 03-10-2016 |
| 20160109407 | METHOD AND APPARATUS FOR SENSING MAGNETIC RADIATION THROUGH TAGGING - A method and an apparatus for monitoring a material includes adding tagging particles to the material, sensing the tagging particles in the material for an even distribution throughout the material, forming a part from the material if the tagging particles are evenly distributed throughout the material, sensing the tagging particles in the part to determine a physical characteristic of the part, placing the part in operation if the determined physical characteristic is within a predetermined specification, sensing the tagging particles in the part during operation to detect at least one of wear and damage to the part, and generating an indication to a user upon detection of the at least one of wear or damage to the part. | 04-21-2016 |
| 073861060 | With autocorrelation or cross-correlation detection | 1 |
| 20100000330 | METHOD AND SYSTEM FOR NON-INVASIVELY MONITORING FLUID FLOW IN A SUBJECT - A monitoring system is presented for monitoring fluid flow in turbid medium. The fluid flow monitoring system comprises a processor utility which is connectable to an acoustic generator associated with one or more acoustic ports and is operable for generating signals S | 01-07-2010 |
| 073861950 | Thermal tracer or tag | 8 |
| 20090000396 | Device and Method of Detecting Flow Rate/Liquid Kind, and Device and Method of Detecting Liquid Kind - A flow rate/liquid type detecting method for detecting the flow rate of a fluid and, at the same time, detecting any one of or both the type of the fluid and the concentration of the fluid, characterized in that, by using a flow rate/liquid type detecting apparatus comprising: a main passage through which a fluid to be detected flows, an auxiliary passage branched from the main passage, and a flow rate/liquid type detecting sensor device provided in the auxiliary passage, is provided, and in conducting any one of or both the detection of the type of the fluid and the detection of the concentration of the fluid, the auxiliary passage opening/closing valve is closed, and the fluid is allowed to temporarily stay within the flow rate/liquid type detecting sensor device to conduct any one of or both the detection of the liquid type and the detection of the concentration, and in detecting the flow rate of the fluid detected, the auxiliary passage opening/closing valve is opened to allow the fluid to flow into the flow rate/liquid type detecting sensor device to detect the flow rate. | 01-01-2009 |
| 20090205441 | Flow-Rate Measuring Method and Flow-Rate Measuring Device - A measurable flow-rate range is increased to enhance usability. A flow-rate measuring method for measuring the flow rate of a fluid inside a tube is provided. This method uses a thermal-marker generator that heats the fluid flowing through the tube from the outside thereof to generate a thermal marker in the fluid inside the tube and a thermal-marker detector disposed downstream of the thermal-marker generator and configured to detect the thermal marker in the fluid inside the tube generated by the thermal-marker generator, so as to measure the flow rate on the basis of the distance between the thermal-marker generator and the thermal-marker detector, a time period between a point at which the thermal marker in the fluid inside the tube is generated by the thermal-marker generator and a point at which the thermal marker is detected by the thermal-marker detector, and the cross-sectional area of the tube. In this method, the thermal-marker generator heats the fluid by a microwave heating technique, and microwaves are applied to the fluid by using a microstrip line. | 08-20-2009 |
| 20100000333 | FLUID FLOW METER USING THERMAL TRACERS - Fluid flows through a conduit. To measure flow speed the fluid is heated at a heating location in the conduit with a time-dependent heating strength. A speed of sound in fluid flowing in the conduit is measured at a plurality of sensing locations downstream from said heating location. The flow speed of the fluid is determined from a delay with which the time dependence is detected in the sound speeds measured at said sensing locations. In an embodiment a frequency of the variation of heating strength that is used to determine the flow speed is selected automatically dependent on the flow speed and/or other circumstances. | 01-07-2010 |
| 20120216629 | MEMS TIME-OF-FLIGHT THERMAL MASS FLOW METER - An apparatus comprising a micromachined (a.k.a. MEMS, Micro Electro Mechanical Systems) silicon flow sensor, a flow channel package, and a driving circuitry, which operates in a working principle of thermal time-of-flight (TOF) to measure gas or liquid flow speed, is disclosed in the present invention. The micromachining technique for fabricating this MEMS time-of-flight silicon thermal flow sensor can greatly reduce the sensor fabrication cost by batch production. This microfabrication process for silicon time-of-flight thermal flow sensors provides merits of small feature size, low power consumption, and high accuracy compared to conventional manufacturing methods. Thermal time-of-flight technology in principle can provide accurate flow speed measurements for gases regardless of its gas compositions. In addition, the present invention further discloses the package design and driving circuitry which is utilized by the correlated working principle. | 08-30-2012 |
| 20120279316 | Method and Apparatus for the Measurement of Flow in Gas or Oil Pipes - The present disclosure relates to a method and an apparatus for measuring a flow rate through a conduit, such as a pipeline. The method comprises providing a reference parameter, measuring a first parameter at a first position at the conduit and determining a difference between the first parameter and the reference parameter. The flow rate through the conduit is determined based on the difference between the first parameter and the reference parameter. | 11-08-2012 |
| 20130276549 | Method and Apparatus for the Measurement of Flow in Gas or Oil Pipes - The present disclosure relates to a method and an apparatus for measuring a flow rate through a vessel, such as a conduit or pipeline. The method comprises providing a reference parameter, measuring a first parameter at a first position at the vessel and determining a difference between the first parameter and the reference parameter. The flow rate through the vessel is determined based on the difference between the first parameter and the reference parameter. | 10-24-2013 |
| 20160161311 | CAPILLARY SENSOR TUBE FLOW METERS AND CONTROLLERS - Capillary-type mass flow meters and controllers are described that employ temperature sensor hardware providing boundary conditions as necessary for direct computation of mass flow rate. The approach offers dramatically improved operable range and other potential benefits as compared to known systems. | 06-09-2016 |
| 20160161316 | POWERING SENSORS IN A HEAT TRACE SYSTEM - Powering a sensor module of a heat trace system used for heating vessels. The sensor module may comprise a temperature sensor that measures the temperature of a vessel. A microprocessor-based controller of the heat trace system uses the sensed temperature from the sensor module to control the voltage applied to the heat trace, and thereby control the heat provided by the heat trace to the vessel. The sensor module may comprise an energy storage device that stored energy from the voltage difference across a pair of buss wires in the heat trace cable, and the stored energy is used to power the components of the sensor modules. | 06-09-2016 |
