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Match Document Document Title
7191100 Method and system for predictive physiological gating of radiation therapy  
A method and system for physiological gating for radiation therapy is disclosed. A method and system for detecting and predictably estimating regular cycles of physiological activity or movements...
7110893 Method and apparatus for measuring a parameter of a fluid flowing within a pipe using an array of sensors  
Various methods are described which increase the efficiency and accuracy of a signal processor in determining parameters of a fluid using signals output by a spatial array of sensors disposed along...
6990435 Tactile sensing method and system  
A system for detecting tactile information includes strain-gauge touch sensors and a controller. Based on the sum output from each of tough-sensor sensor units, an analyzer in the controller...
6869425 Temperature compensation system for regulating flow through tubing in a pump  
A peristaltic pump is provided with a housing, a pump head in the housing, and a receiving path defined along a housing and pump head for receiving tubing. Two spaced-apart temperature sensors are...
6745632 Method for measuring ultrasonic transit times  
Embodiments of the invention provide an algorithm for enhancing the transit time measurement of an ultrasonic wave through a fluid, and criteria for evaluating the suitability for various waveforms...
6646725 Multiple beam lidar system for wind measurement  
A system for measuring components of the velocity of wind along two axes that are transverse to the line of sight of the system includes first and second light emitter arrays disposed along crossed...
6611319 Optical flow sensor using a fast correlation algorithm  
An optical flow sensor determines the velocity of a moving flow of air or other gas utilizing a plurality of photodetectors spaced apart in a direction parallel to the direction of gas flow. An...
6609069 Method and apparatus for determining the flow velocity of a fluid within a pipe  
A method and corresponding apparatus for measuring the flow velocity of a fluid in an elongated body by sensing at more than one location along the elongated body, vortical disturbances convecting...
6502465 Determining gas and liquid flow rates in a multi-phase flow  
A method and apparatus for determining gas and liquid flow rates in a multi-phase flow are provided. In accordance with one embodiment of the present invention, a method of determining gas and...
6467358 Method of measuring flow rates of respective fluids constituting multiphase fluid and flow meter for multiphase flow utilizing same  
A flow meter for a multiphase flow which comprises a cross-correlation flow meter ( 26 ) for measuring basic values to calculate component ratios of respective fluids constituting a multiphase...
6369881 Optical flow sensor  
An optical flow sensor determines the velocity of a moving flow of air or other gas utilizing a plurality of photodetectors spaced apart in a direction parallel to the direction of gas flow. An...
6293156 Coherent multi-path flow measurement system  
A clamp-on ultrasonic measurement system for a gas or fluid of low acoustic impedance, such as steam, two phase fluid or flare gas includes an ultrasonic signal transmitter which clamps to the...
6230570 Turbulent spot flowmeter  
A flowmeter and flow measurement method employing the determination of convection speed of turbulent spots. A plurality of sensors is employed, preferably thin-film gauges operating in constant...
6009760 Method of measuring flow, and flow meter  
A flow meter for measuring the flow in a dielectric pipe is disclosed. Two microwave signals are transmitted at measurement points via at least two transmitter antennae through the dielectric pipe...
5948995 Cross correlation fluid flow meter  
A cross correlation fluid flow meter including a body having first and second sensor devices positioned such that in use they are spaced apart a known distance in the direction of fluid flow, each...
5883707 Method and device for sensing three-dimensional flow structures  
A method and device for sensing three-dimensional flow structures, which is distinguished in that at least two, preferably three light sheets of a different wavelength or light intensity are...
5828712 Coolant water flow rate test with rubidium nuclear tracer for reactors  
Fluid flow rates are determined with a nonradioactive tracer agent in the operation of a water cooled nuclear fission reactor employed for driving electrical power generators. The technique is...
5812248 Process and device for generating graphical real-time directional information for detected object traces  
A process and apparatus are disclosed for generating object traces representing the movement of objects through a measuring space. The measuring space can be illuminated by a laser or other light...
5777892 Doppler shift velocity measuring system with correction factors  
To determine the average velocity of a fluid stream, an ultrasonic signal is transmitted into the fluid and reflected ultrasonic signal received. The signals are mixed with a frequency of the...
5701083 Apparatus for measuring consistency and flow rate of a slurry  
A monitor for measuring physical parameters of a slurry, utilizing microwave propagation within a waveguide, either in conduit or a storage facility. Switching circuitry and specially constructed...
5650571 Low power signal processing and measurement apparatus  
A low power apparatus for measuring various process parameters and/or physical properties of a fluid or gas medium by measuring the change of a wave signal or time dependent signal as it traverses...
5610703 Method for contactless measurement of three dimensional flow velocities  
A digital particle image velovimetry (DPIV) method for contactless measurement of three dimensional flow velocities comprising the steps of seeding a flow with tracer particles; repeatedly...
5533408 Clamp-on ultrasonic volumetric flowmeter  
To permit this flowmeter to automatically operate either on one measurement principle or on another depending on a selectable foreign-particle content of the fluid, it has a first pair of...
5333674 Method for measuring the cleaning effectiveness of cleaning bodies on heat exchangers  
The invention concerns a method for measuring the cleaning effectiveness of cleaning bodies (20) on heat exchangers having a bunch of tubes (16). Further, a method and a plant is proposed with...
5249238 Spatial cross-correlating velocimeter  
5247836 Convective electric current flowmeter  
A flowmeter comprises a first electrode disposed on a first cross section of the flow passage and a second electrode disposed on a second cross section of the flow passage downstream of the first...
5224482 Ultrasound high velocity flow correlation measurement using coded pulses  
An ultrasound high velocity flow measurement apparatus uses cross-correlation between consecutive echoes of coded pulses which are matched filtered at the receiver to determine velocity profiles of...
RE34265 Groundwater azimuth detection  
An apparatus detects the azimuth of the migration of groundwater containing suspended microscopic particles. The apparatus comprises a probe consisting of a light source which emits light in a...
5150171 Fluxes scintillometer  
A laser scintillometer measures the variance of the log intensity of diverged laser light received via a first path. A large aperture scintillometer measures the variance of the log intensity of...
5146414 Method and apparatus for continuously measuring volumetric flow  
Method and apparatus for adapting the volumetric flow rate measurement system taught by Yelderman in U.S. Pat. No. 4,507,974 to clinical environments by reducing the effects of physiological noise....
5121639 Fluid flow measurement  
A method and apparatus for monitoring the velocity of flow of a fluid, by: causing fluid to flow through a conduit section defining a monitoring region, the conduit section having an interior...
5054913 Method and apparatus for measuring the velocity of a fluid using analysis of Young's fringes in speckle photography  
A method and apparatus for measuring the velocity of a fluid in which a double-exposure image of the speckle pattern or particle images of tracer particle in a fluid is irradiated with a collimated...
5029481 Cross-correlation apparatus and methods  
An apparatus and method for processing first and second signals, the second signal representing information which is delayed in time with respect to correspoonding information represented by the...
5011278 Optical correlator method and apparatus for particle image velocimetry processing  
Young's fringes are produced from a double exposure image of particles in a flowing fluid by passing laser light through the film and projecting the light onto a screen. A video camera receives the...
4989969 Time of flight velocimeter  
A time of flight velocimeter wherein a radiation source projects two parallel beams into an air mass. Each of the parallel beams converges into a waist portion. As an aerosol particle moves through...
4988191 Electro-optical method and system for determining the direction of motion in double-exposure velocimetry by shifting an optical image field  
A system of double-pulse particle velocimetry, according to which small scattering particles are illuminated by two short pulses of laser light and then images are recorded photographically to...
4976154 Arrangement for contactless measurement of the volume flow or mass flow of a moving medium  
The arrangement for contactless measurement of the volume flow or mass flow of a moving medium comprises two transducers which furnish electrical signals into which inhomogeneities of the moving...
4920795 Electromagnetic flowmeter for conductive or dielectric fluids and its applications in particular oilfield  
The invention is a non-intrusive system for measuring the flow rates of insulating or conducting fluids in conduits. It results from the combination of an electromagnetic flowmeter, operating with...
4912519 Laser speckle velocity-measuring apparatus  
There is provided a laser speckle velocity-measuring apparatus comprising: a semiconductor laser to irradiate the light to a moving object; first and second photo sensing devices whose light...
4866639 Method and apparatus for determining the direction of motion in multiple exposure velocimetry  
The present invention is in the context of the measurement of velocity fields of fluid flows containing many small scattering sites, which exist either in the form of particles or optically...
4859055 Laser velocimeter  
An aircraft velocimeter comprises means for projecting three pairs of independently generated ribbon-shaped laser beams to a measurement volume located at a predetermined distance from the aircraft...
4856895 Method and apparatus for headbox jet velocity measurement  
The velocity of a liquid jet, such as the headbox jet of a paper making machine, is measured by cross-correlation of a.c. signal components produced by a pair of light beams received by a pair of...
4841780 Cross correlation flowmeter  
A cross correlation flowmeter for measuring a flow rate of a fluid comprises a conduit through which the fluid to be measured the flow rate is flowing, first and second upstream sensors disposed on...
4760743 Acoustic scintillation liquid flow measurement  
A system and method are disclosed for acoustic scintillation liquid flow measurement. Measurement is carried out by acoustic beams transmitted perpendicular to the direction the component of liquid...
4752727 Arrangement for detecting spatial inhomogeneities in a dielectric  
The arrangement includes a capacitive probe comprising pairs of sensor electrodes, arranged in a pseudo-random sequence, with which a common transmitting electrode is associated. The transmitting...
4735097 Method and apparatus for measuring fluid characteristics using surface generated volumetric interrogation signals  
A method and apparatus for measuring fluid characteristics use a non-invasive ultrasonic system for generating spatially extended signals into a volume of a fluid and detecting said signals for...
4733962 Jet velocity measuring apparatus  
A jet velocity measuring apparatus is disclosed for measuring the velocity of a fluid stream. The apparatus (10) measures the time delay between primary electronic signals generated by a first...
4729109 Method and apparatus for measuring the displacements of particle images for multiple exposure velocimetry  
A hybrid optical/digital method for measuring the displacements of compact images, in particular, particle images recorded on photographic or other recording media in multiple exposure photography....
4708021 Arrangement for contactless measurement of the velocity of a moving medium  
The arrangement for contactless measurement of the velocity of a moving medium comprises two transducers which furnish electrical signals into which inhomogeneities of the moving medium enter...
4707130 Method and apparatus for the optical measurement of fluid flow  
Method and apparatus for optical measurement of fluid flow in which particles are injected into the fluid flow to permit accurate velocity measurements to be made thereof between two laser beams...
Matches 1 - 50 out of 83 1 2 >