| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | DROPLET VELOCITY DETECTION | US14932537 | 2015-11-04 | US20160131675A1 | 2016-05-12 | Aaron Weber; Tony Hung; Sepehr Kiani |
| Methods and systems are provided for measuring a velocity of a droplet passing through a microfluidic channel. | ||||||
| 22 | SYSTEMS AND METHODS FOR DETERMINING VELOCITY AND FLUX OF A GAS | US14830521 | 2015-08-19 | US20160077122A1 | 2016-03-17 | Tyler ANDERSON |
| Systems and methods for determining gas velocity based on phase differences of signals from two or more interaction paths in a gas analyzer system. A laser source, which can provide access to an absorption gas line, is expanded, or is split into two or more beams. These beams can be used to create two (or more) parallel sampling paths separated by a known distance. Gas travelling in the plane of the two beams of light will pass through the optical paths at two (or more) different times creating very similar signals that will be out of phase with each other. The amount of phase difference will be inversely proportional to the velocity of the gas. | ||||||
| 23 | METHOD FOR DETERMINING SPEED OF A SIGNAL SPECIES IN A MEDIUM AND ASSOCIATED APPARATUS | US13386817 | 2010-07-23 | US20120272737A1 | 2012-11-01 | Wayne Rudd; Laurie Linnett; Allison Mason |
| Methods and apparatus for determining the speed of a signal species, such as an acoustic signal, in a multilayered medium is described. The multilayer medium, generally, has a first and second layer (e.g. oil and water), whereby first and second signals are transmitted across particular distances in the medium such that a second distance differs from a first distance, and whereby the time of flight of each signal can be used in order to determine the speed of the signals species in one or both of the first and second layer. In other words, in some cases, the speed of sound can be determined in oil and/or water, or the like. | ||||||
| 24 | Salometer and flow rate sensor assembly | US12198258 | 2008-08-26 | US08226823B2 | 2012-07-24 | Kerry Quinn; Gene Wayman; Kumudika Premathilake; Bill Lathouris |
| A salometer and flow rate sensor assembly for a water softener system including a brine tank containing a brine solution including at least one sensor housing provided in the brine tank, a first detector set associated with the housing and configured for indicating whether the brine solution is adequately concentrated and a second detector set associated with the housing and configured for measuring the brine solution flow rate during brine draw and refill cycles of regeneration. | ||||||
| 25 | Accelerometer Module for Use With A Touch Sensitive Device | US13356215 | 2012-01-23 | US20120113053A1 | 2012-05-10 | Robert Thomas Cato |
| An accelerometer module for use with a touch sensor on a device, a method of detecting acceleration using a touch sensor, and a computer program product for receiving the touch sensor data and producing output representative of acceleration. The accelerometer module provides a device with a touch sensor, such as a mobile phone, with the ability to sense acceleration, orientation, or both. The accelerometer module may sense acceleration along a single axis or multiple axis. Sensing acceleration along three axis may be useful for producing a handheld game controller or for providing input to many other applications. The accelerometer module applies a force against a deformable member to change the contact area between the deformable member and the touch sensor, wherein the contact area is a function of the amount of applied acceleration. | ||||||
| 26 | Method for measuring river discharge in the presence of moving bottom | US11956472 | 2007-12-14 | US07523658B1 | 2009-04-28 | Vadim Polonichko; Ramon Cabrera; John Sloat; Matthew J. Hull; Arthur R. Schmidt |
| A method for measuring channel flow discharge comprising the steps of: locating a platform carrying a fluid flow measurement device at a plurality of stations at spaced locations across a channel; determining the velocity of the platform at each station by averaging the differences between the position of the platform at a first time (t) and the position of the platform at a second time equal to the first time plus a position averaging interval (PI) for a plurality of different first times; obtaining current flow vs. depth profiles at each station by adjusting current velocity as measured by the current flow measuring device for the platform velocity; determining the flow discharge at each station. | ||||||
| 27 | SALOMETER AND FLOW RATE SENSOR ASSEMBLY | US12198258 | 2008-08-26 | US20090056422A1 | 2009-03-05 | Kerry Quinn; Gene Wayman; Kumudika Premathilake; Bill Lathouris |
| A salometer and flow rate sensor assembly for a water softener system including a brine tank containing a brine solution including at least one sensor housing provided in the brine tank, a first detector set associated with the housing and configured for indicating whether the brine solution is adequately concentrated and a second detector set associated with the housing and configured for measuring the brine solution flow rate during brine draw and refill cycles of regeneration. | ||||||
| 28 | Optical system for measuring diameter, distribution and so forth of micro bubbles and micro liquid drop | US09926112 | 2001-09-04 | US06587208B2 | 2003-07-01 | Masanobu Maeda; Tatsuya Kawaguchi |
| The present invention expands a method of measuring the diameter, spatial distribution and so forth of micro liquid droplets by measuring the diameter of each out-of-focus image obtained by defocusing and the number of interference fringes in the out-of-focus image into a measuring method for micro gas bubbles and allows the method to be applied to a case where the spatial distribution density of micro liquid droplets and micro gas bubbles is high. A sheet-shaped parallel laser beam (2) is applied to a liquid space in which micro gas bubbles (10) are floating, and out-of-focus images of micro gas bubbles (10) irradiated with the laser beam (2) are captured at a defocus plane (8) through an objective lens (6) from a lateral direction which is at an angle &thgr; to the direction of travel of the laser beam. The number of interference fringes (9) in an out-of-focus image (10″) corresponding to a micro gas bubble (10) is measured, and the diameter of the micro gas bubble (10) is determined according to equation (4). | ||||||
| 29 | Method and apparatus for measuring diameter, distribution and so forth of micro gas bubbles and micro liquid droplets and optical system for measuring diameter, distribution and so forth of micro bubbles and micro liquid drop | US09926112 | 2001-09-04 | US20020159070A1 | 2002-10-31 | Masanobu Maeda; Tatsuya Kawaguchi |
| The present invention expands a method of measuring the diameter, spatial distribution and so forth of micro liquid droplets by measuring the diameter of each out-of-focus image obtained by defocusing and the number of interference fringes in the out-of-focus image into a measuring method for micro gas bubbles and allows the method to be applied to a case where the spatial distribution density of micro liquid droplets and micro gas bubbles is high. A sheet-shaped parallel laser beam (2) is applied to a liquid space in which micro gas bubbles (10) are floating, and out-of-focus images of micro gas bubbles (10) irradiated with the laser beam (2) are captured at a defocus plane (8) through an objective lens (6) from a lateral direction which is at an angle null to the direction of travel of the laser beam. The number of interference fringes (9) in an out-of-focus image (10null) corresponding to a micro gas bubble (10) is measured, and the diameter of the micro gas bubble (10) is determined according to equation (4). | ||||||
| 30 | System and device for determining particle characteristics | US09607702 | 2000-06-30 | US06412359B1 | 2002-07-02 | Maciej Zborowski; Jeff Chalmers; Lee Robert Moore |
| The present invention provides methods and apparatuses for determining at least one of a plurality of particle physical characteristics. The particle physical characteristics include particle size, shape, magnetic susceptibility, magnetic label density, charge separation, dielectric constant, and derivatives thereof. The method includes generating a region of space having a substantially constant force field, determining the velocity of at least one particle within the region by identifying and locating the particle and its coordinates in at least two temporally defined digital images, and determining the particle physical characteristics from the determined velocity and a predetermined force field magnitude and direction. A device for determining one or more particle physical characteristics is described which has a force field device for subjecting at least one particle to at least one force field, a substantially transparent flow channel, and a computer system for gathering and analyzing data associated with the at least one particle. A system for determining one or more particle physical characteristics is provided which has a force field device for generating at least one force field having a predetermined force field magnitude and direction and for subjecting at least one particle to the at least one force field, a flow system for regulating the introduction of the at least one particle into the force field device, and a computer system for gathering and analyzing data associated with the at least one particle. A pole piece assembly for producing a region of space having a substantially constant magnetic force field is also provided. | ||||||
| 31 | Method for determining particle characteristics | US232956 | 1999-01-19 | US6142025A | 2000-11-07 | Maciej Zborowski; Jeff Chalmers; Lee Robert Moore |
| The present invention provides methods and apparatuses for determining at least one of a plurality of particle physical characteristics. The particle physical characteristics include particle size, shape, magnetic susceptibility, magnetic label density, charge separation, dielectric constant, and derivatives thereof. The method includes generating a region of space having a substantially constant force field, determining the velocity of at least one particle within the region by identifying and locating the particle and its coordinates in at least two temporally defined digital images, and determining the particle physical characteristics from the determined velocity and a predetermined force field magnitude and direction. A device for determining one or more particle physical characteristics is described which has a force field device for subjecting at least one particle to at least one force field, a substantially transparent flow channel, and a computer system for gathering and analyzing data associated with the at least one particle. A system for determining one or more particle physical characteristics is provided which has a force field device for generating at least one force field having a predetermined force field magnitude and direction and for subjecting at least one particle to the at least one force field, a flow system for regulating the introduction of the at least one particle into the force field device, and a computer system for gathering and analyzing data associated with the at least one particle. A pole piece assembly for producing a region of space having a substantially constant magnetic force field is also provided. | ||||||
| 32 | System and device for determining particle characteristics | US20327 | 1998-02-06 | US6082205A | 2000-07-04 | Maciej Zborowski; Jeff Chalmers; Lee Robert Moore |
| The present invention provides methods and apparatuses for determining at least one of a plurality of particle physical characteristics. The particle physical characteristics include particle size, shape, magnetic susceptibility, magnetic label density, charge separation, dielectric constant, and derivatives thereof. The method includes generating a region of space having a substantially constant force field, determining the velocity of at least one particle within the region by identifying and locating the particle and its coordinates in at least two temporally defined digital images, and determining the particle physical characteristics from the determined velocity and a predetermined force field magnitude and direction. A device for determining one or more particle physical characteristics is described which has a force field device for subjecting at least one particle to at least one force field, a substantially transparent flow channel, and a computer system for gathering and analyzing data associated with the at least one particle. A system for determining one or more particle physical characteristics is provided which has a force field device for generating at least one force field having a predetermined force field magnitude and direction and for subjecting at least one particle to the at least one force field, a flow system for regulating the introduction of the at least one particle into the force field device, and a computer system for gathering and analyzing data associated with the at least one particle. A pole piece assembly for producing a region of space having a substantially constant magnetic force field is also provided. | ||||||
| 33 | Method for determining particle characteristics | US20330 | 1998-02-06 | US5974901A | 1999-11-02 | Maciej Zborowski; Jeff Chalmers; Lee Robert Moore |
| The present invention provides methods and apparatuses for determining at least one of a plurality of particle physical characteristics. The particle physical characteristics include particle size, shape, magnetic susceptibility, magnetic label density, charge separation, dielectric constant, and derivatives thereof. The method includes generating a region of space having a substantially constant force field, determining the velocity of at least one particle within the region by identifying and locating the particle and its coordinates in at least two temporally defined digital images, and determining the particle physical characteristics from the determined velocity and a predetermined force field magnitude and direction. A device for determining one or more particle physical characteristics is described which has a force field device for subjecting at least one particle to at least one force field, a substantially transparent flow channel, and a computer system for gathering and analyzing data associated with the at least one particle. A system for determining one or more particle physical characteristics is provided which has a force field device for generating at least one force field having a predetermined force field magnitude and direction and for subjecting at least one particle to the at least one force field, a flow system for regulating the introduction of the at least one particle into the force field device, and a computer system for gathering and analyzing data associated with the at least one particle. A pole piece assembly for producing a region of space having a substantially constant magnetic force field is also provided. | ||||||
| 34 | Apparatus for measuring a powder mass flow | US808307 | 1997-02-28 | US5864239A | 1999-01-26 | Horst Adams; Kurt Seitz |
| The instant invention relates to an apparatus for measuring a powder mass flow in a powder/gas mixture during the conveyance thereof through a feed pipe, the apparatus comprising a velocity measuring device for the powder/gas mixture, a mass measuring device for the powder mass per volume unit, and a calculating device to calculate the powder mass flow based on the velocity measured, the powder mass per volume unit measured, and the dimensions of the feed pipe. The mass measuring device comprises a microwave resonator and means for sensing the resonant frequency and/or the microwave amplitude of the microwave resonator. The microwave resonator is embodied by a coil which is applied on the outside of the feed pipe. The invention likewise proposes a method of measuring the powder mass flow in a feed pipe wherein measuring of the powder mass per volume unit involves establishing a reference resonance of a known powder mass flow, adjusting two measuring frequencies at either side of the reference resonance, measuring the resonator voltage at the adjusted measuring frequencies and forming the difference thereof for a powder mass flow to be measured, and determining the displacement of the resonant frequency based on the voltage differential. | ||||||
| 35 | Flow detector | US546733 | 1995-10-23 | US5621392A | 1997-04-15 | Francesco Paolini; Marco Paraluppi; Luca Vinci |
| A liquid flowed detection system is disclosed for monitoring continuous and discontinuous liquid flow in a fluid circuit. The system includes a holding device for maintaining a drip chamber so that its elongated axis generally lies in a vertical plane. A light emitter is oriented to transmit light along an optical path through the drip chamber and intersecting its elongated axis. A light detector located in the optical path opposite the light emitter, generates a signal representative of light received from the light emitter. A processor receives information from the detector and generates a control signal representative of a variability over time of the light detector signal. When the control signal drops below a predetermined level, a flow absence signal is generated which is then correlated to the system's pump velocity corresponding to a time interval (T). If the flow absence signal occurs continuously in a comparison time interval (T), a warning signal is generated. | ||||||
| 36 | Optical sensor for duct fan discharge mach numbers | US167009 | 1993-12-16 | US5463458A | 1995-10-31 | Ertugrul Berkcan |
| A Mach number sensor comprises a first pulse speed sensor situated in direct contact with an open area through which a first pressure pulse can pass and a second pulse speed sensor situated in a thermally conductive tube with membrane-covered ends having stationary air through which a second pressure pulse can pass. Each of the first and second pulse speed sensors may comprise two total internal reflection detectors and a timer for determining elapsed time for passage of the pressure pulse between the two detectors. Each of the total internal reflection detectors can be selected from the group consisting of a single optical fiber having cladding removed at a surface facing the area through which the pressure pulse can pass; and a prism having a first surface facing the area through which the pressure pulse can pass, an input optical fiber optically coupled to a second surface of the prism for supplying light to the prism through the second surface, and an output optical fiber optically coupled to a third surface of the prism for detecting light emerging from the prism through the third surface. | ||||||
| 37 | Method and apparatus for measuring the rate of flow of the continuous phase of a multiphase fluid | US375214 | 1995-01-19 | US5456120A | 1995-10-10 | Sam Simonian |
| The invention concerns a method of and apparatus for measuring the flow rate of a continuous phase in a flowing multiphase fluid. It includes the steps of measuring a velocity of the fluid with a thermal anemometer at a location in the flow and simultaneously measuring the passage of a discontinuous phase at the same location with a local probe system capable of measuring the passage of a discontinuous phase, and then using the measurement of the discontinuous phase to correct the measurement of the continuous phase so as to derive the flow rate thereof. | ||||||
| 38 | Method and apparatus for measuring liquid flow | US771903 | 1991-10-04 | US5116119A | 1992-05-26 | Eyal Brayer |
| A method and apparatus for measuring liquid flow, particularly milk, includes directing the liquid to flow through one or more flow channels, while exposing the liquid to electromagnetic radiation; measuring the transparency to electromagnetic radiation of the liquid flowing through the flow channel; and measuring the momentary attenuation of electromagnetic radiation by the liquid flowing through the flow channels, to determine the momentary volume of the liquid flowing through the flow channel. The momentary velocity of the liquid flowing through the flow channels is also determined, thereby permitting a determination of the momentary flow rate of the liquid flowing through the flow channels. | ||||||
| 39 | Measurement of flow velocity and mass flowrate | US359377 | 1989-05-31 | US5025160A | 1991-06-18 | John S. Watt |
| Time varying measurements indicative of the ratio of mass absorption coefficients of the components of a multiphase flow containing at least two liquid phases at two spaced apart locations are cross correlated to determine liquid flow velocity. The time varying measurements are provided by measuring the intensities of gamma-rays transmitted through a selected volume of the flow at two different gamma-ray energies. At least one of the gamma-ray energies has substantially different mass absorption coefficients in each of the two liquids. Gas velocity, when gas is present, and component fractions of all components are determined using a dual energy gamma-ray transmission technique and with the liquid flow velocity are used to derive mass flowrates. | ||||||
| 40 | Apparatus and method for determining flow characteristics of a fluid | US217620 | 1980-12-18 | US4397190A | 1983-08-09 | Jean-Pierre Hulin |
| A method and apparatus for determining the flow rate and other flow characteristics of a polyphase fluid or a turbulent single-phase fluid flowing in a conduit are disclosed. Two differential pressure sensors are provided, each having two pressure ports sensitive to local pressure variation in the fluid. The pressure ports are maintained in a predetermined spatial relationship and in a predetermined orientation relative to the general direction of the flow. The detection signals from the respective sensors are correlated to obtain the flow rate. Additionally, a selected one of the detection signals is processed to obtain other flow characteristics. One of these other flow characteristics, the type of flow, is useful in facilitating the determination of the flow rate. | ||||||
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