| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Deicing System in Sodar Systems | US12565078 | 2009-09-23 | US20100071890A1 | 2010-03-25 | Niels LaWhite; Louis Manfredi; Michael Jobin; Walter L. Sass |
| A system for heating the sound-reflective mirror surface of a phased array monostatic sodar apparatus. The system has a heat source located at a position that is spaced from the mirror, a control system that controls the operation of the heat source, a working fluid that is heated by the heat source and used to transfer heat from the source to the mirror, and a delivery system that constrains the heated working fluid and delivers it from the heat source to the mirror. | ||||||
| 122 | Method for wind turbine yaw control | US12218715 | 2008-07-17 | US20090039651A1 | 2009-02-12 | Henrik Stiesdal |
| A method for yaw control for a wind turbine comprising a rotor with a rotor blade, the rotor defining a rotor axis and a rotor plane to which the rotor axis is perpendicular, in which the rotor axis is turned to minimise the yaw angle between the ambient wind direction and the rotor axis is provided, wherein the turning of the rotor axis is performed based on the measurement of a wind speed in the rotor plane at the rotor blade. Furthermore, a wind turbine which comprises a rotor which includes a rotor axis and a rotor plane perpendicular to the rotor axis and an anemometer for measuring the ambient wind speed is provided. The wind turbine further comprises an anemometer which is located such at a rotor blade at a particular distance from the rotor axis as to allow for measuring a wind speed in the rotor plane. | ||||||
| 123 | System for determining the air flow conditions around one or more sails | US10556458 | 2004-05-11 | US07415935B2 | 2008-08-26 | Stefan Witte |
| The invention relates to a system adapted for sailors in order to determine the air flow conditions around one or more sails, in conjunction with which both sides of the sails are equipped with a number of ultrasonic sensors that are distributed over the surface and communicate the flow conditions in their vicinity to a central unit. | ||||||
| 124 | Means for Performing Measurements in a Vessel | US10565933 | 2004-07-13 | US20080058647A1 | 2008-03-06 | Sascha Kruger; Jorn Borgert |
| The invention relates to a facility that can be used, in particular, to measure the flow conditions in a blood vessel. The facility comprises a catheter (16) having a bundle (15) of optical waveguides that connects control and measurement facilities (20) outside the body with an optical unit (10) at the catheter tip. The light (λK) generated by a cavitation light laser source (30) is beamed via the catheter (16) and the optical unit (10) into a focus region (2) in the vessel lumen, where it generates cavitation bubbles (3). The movement of the cavitation bubbles (3) with the blood flow is determined by the particle-measuring unit (20) that is based, for example, on phase-Doppler anemometry and/or the Doppler shift. As a result of suitable design of the optical unit (10), the focus region (2) can be displaced as desired radially and rotationally inside the vessel so that a vessel cross section can be scanned in a spatially resolved way. Furthermore, a spectral analysis of the light arriving from the focus region (2) is possible in order, for example, to analyze the chemical composition in this region. The reaching of the vessel wall (1) can be detected by the moving focus region (2) and used for a vessel measurement and/or to switch off the cavitation light laser (30). | ||||||
| 125 | Flow meter for fluid or gas-like media | US11353744 | 2006-02-14 | US07287437B2 | 2007-10-30 | Harald Kroemer; Wilhelm Ofelein; Gunter Hauenstein |
| The invention relates to a flow meter for liquid or gaseous media, the flow meter has a measuring channel through which the medium flows, at least one inlet channel and at least one outlet channel and also at least one pair of ultrasound converters for emitting and receiving ultrasound signals, wherein for guiding an ultrasound signal from one ultrasound converter to the other ultrasound converter, at least one pair of reflectors is arranged in the measuring channel, the diameter of the measuring channel is reduced using a reducer in certain regions for guiding the flow of the medium, wherein the reducer is formed by a measuring channel insert, which is arranged on and/or integrated into the measuring channel inner wall, and which is used simultaneously for holding or fixing other functional parts. Furthermore, the invention relates to a flow meter, in which a flow guide plate is used as a holding plate for the pair of reflectors and stretches in the longitudinal direction of the measuring channel. In another embodiment at least two measuring sections each having at least one pair of reflectors and one pair of ultrasound converters are provided. | ||||||
| 126 | Method and system for measuring flow layer velocities using correlation velocity measuring sonar | US10549199 | 2003-12-12 | US20070129910A1 | 2007-06-07 | Weiqing Zhu; Changhong Wang |
| The present invention discloses a method and a system for measuring flow layer velocities using correlation velocity measuring sonar. The present invention provides a new theoretical expression for fluid medium sonar array temporal and spatial correlation function, the velocities of each flow layer are derived by fitting experimental data and a theoretical function, or fitting absolute value operated and localized experimental data and a theoretical function. The fluid medium sonar array temporal and spatial correlation function of the present invention is succinctly expressed by Kummer function, and well coincided with the experiments. This function is applicable not only to far field region, i.e. planar wave region, but also Fraunhofer region, i.e. spherical wave region. The present invention has the merits of high measurement accuracy, small calculation load, good robustness and fast convergence. | ||||||
| 127 | System for determining the air flow conditions around one or more sails | US10556458 | 2004-05-11 | US20070089658A1 | 2007-04-26 | Stefan Witte |
| The invention relates to a system adapted for sailors in order to determine the air flow conditions around one or more sails, in conjunction with which both sides of the sails are equipped with a number of ultrasonic sensors that are distributed over the surface and communicate the flow conditions in their vicinity to a central unit. | ||||||
| 128 | Methods and systems for acquiring ultrasound image data | US11138199 | 2005-05-26 | US20070010747A1 | 2007-01-11 | Thomas Sabourin; Michelle Angle; Robert Thompson |
| Methods and systems for acquiring ultrasound image information are provided. The method includes receiving compounding image information from an ultrasound system, receiving color flow image information from the ultrasound system, and processing the received compounding image information and color flow image information to generate a compounded ultrasound image in combination with color flow imaging. | ||||||
| 129 | Phased array sonic transducers for marine instrument | US948231 | 1992-09-21 | US5313834A | 1994-05-24 | Maurice Lagace |
| A low cost phased array sonic transducer is described in which an array of transducer elements separated by spacers are held within a frame which applies a compressive force transverse the length of the elements. | ||||||
| 130 | Nonintrusive flow sensing system | US539417 | 1990-06-15 | US5040415A | 1991-08-20 | Sarkis Barkhoudarian |
| A nonintrusive flow sensing system (10) and related method are provided for monitoring fluid flow within a conduit (14), particularly such as a liquid flow (12). The sensing system (10) includes an array of ultrasonic transducers (18, 20, 24, 26) mounted on the conduit (14) and adapted to send and receive pulsed ultrasonic signals bidirectionally across the conduit with an upstream-downstream component of direction, and through the conduit in longitudinal and circumferential directions. Signal transit times are processed to obtain accurate measurements of liquid flow velocity, temperature and pressure. | ||||||
| 131 | Ultrasonic energy transfer sensing system | US615447 | 1984-05-30 | US4810100A | 1989-03-07 | Gideon Shavit; Louis S. Smulkstys |
| A system is disclosed for determining the energy transfer across a heat exchanger having an upstream side and a downstream side and mounted within a conduit through which fluid flows, the system including an ultrasonic transmitter for transmitting ultrasonic waves through the conduit on the upstream and downstream sides of the heat exchanger, an ultrasonic receiver for receiving the ultrasonic waves on the upstream and downstream sides of the heat exchanger, the receiver providing signals indicative of the temperature difference between the fluid upstream and downstream of the heat exchanger and the velocity of fluid flow through the conduit and a processor connected to the receiver for determining energy transfer between the heat exchanger and the fluid based upon the signals indicative of the temperature difference and the velocity. | ||||||
| 132 | Method for measuring the flow parameters of a fluid and device utilizing the method | US642282 | 1984-08-20 | US4583409A | 1986-04-22 | Olivier Lannuzel; Thierry Pradal |
| The invention relates to a method of measuring the flow parameters of a fluid, and to a device utilizing this method, in which the autocorrelation function of the signal transmitted back by a particle of the fluid in motion is calculated. The mean speed and the variance of the flow are calculated by calculating the derivations of orders 1 and 2 of this autocorrelation function. | ||||||
| 133 | Transducer structure for generating uniform and focused ultrasonic beams and applications thereof | US350020 | 1982-02-18 | US4431936A | 1984-02-14 | Chong-Cheng Fu; Levy Gerzberg |
| Transducer structures for use in volume flow measurements which generate a first uniform beam and a second focused beam within the uniform beam. The transducer may include concentric elements, a linear array, or combinations thereof. In a two element concentric array, a central disc generates a uniform beam and a peripheral annular element having a lens thereon defines a second focused beam within the first beam. In a linear array, a plurality of juxtaposed linear elements define a scan surface, and a segmented element within the linear element array defines a focused reference sample volume within the scanned surface. A concentric array having a plurality of annular elements is driven with amplitude weighting of each element, in accordance with a Fourier-Bessel approximation to the desired beam pattern, thereby electronically achieving ultrasonic beam width control. | ||||||
| 134 | Speed indicator for fishing gear | US120841 | 1980-02-12 | US4324135A | 1982-04-13 | Ralph B. Peyton |
| A water speed sensor suspended from a fishing boat at the depth fishing gear is being trolled actuates an underwater transducer to transmit a sonic signal detected by an underwater transducer mounted on the boat. The output of the transmitter transducer is fed to an averaging detector circuit which triggers a display of the average speed over a predetermined period of the speed sensed by the speed sensor relative to surrounding water at the trolling depth. | ||||||
| 135 | Velocity measuring correlation sonar | US957908 | 1978-11-06 | US4244026A | 1981-01-06 | Frank R. Dickey, Jr. |
| The velocity measuring correlation sonar disclosed employs a planar array of receiving transducers spaced in the directions along which velocity components parallel to the plane of the array are to be measured, and includes means for transmitting a series of two or more identical pulses which are separated by a time interval selected in accordance with transducer separation and the estimated velocity components so as to place the expected point of maximum correlation of the echo return from one pulse with that from a following pulse within the boundaries of a set of spatial sample points representing relative spacings between pairs of receiving transducers. Correlation measurements are made corresponding to these relative spacings of the receiving transducers, with each such measurement being treated as a sample of a space-time correlation function of predetermined shape. The location of the peak of this function in each of the directions of interest is estimated by curve fitting techniques, and yields the velocity vector in that direction scaled by the inter-pulse time interval. The velocity component normal to the plane of the array may be derived by estimating the location of the correlation peak as a function of time and/or phase, using similar curve fitting techniques. | ||||||
| 136 | Grain loss monitor | US685282 | 1976-05-11 | US4036065A | 1977-07-19 | William P. Strelioff; William S. Elliott; Dale Johnson |
| A percentage of the grain lost is sampled constantly by sensors at locations across the rear of the sieve of a combine and the sound of the grain kernels striking the sensors is picked up by a microphone, amplified, filtered and fed to a ratio computing device which calculates the total grain loss from the sampling and displays same on a meter. A further sensor samples grain passing through the rear portion of a straw walker of a combine as this bears a direct relationship to the quantity of grain passing over the end of the walker. It can therefore be used to calculate the grain loss over the end of the walker. Once again the sound of the grain kernels striking the sensor is picked up by a microphone, amplified, filtered and fed to a ratio computing device which calculates the grain loss over the end of the walker and displays same on the meter. A switching device enables the total of the grain losses to be calculated from the two sensors by means of a summation device to which both sensor signals are connected. This switching device also enables the operator to weed out the grain loss over the sieve or the grain loss over the walker thus enabling him to determine where adjustments are required. | ||||||
| 137 | Ship movement measurement | US621783 | 1975-10-14 | US4004460A | 1977-01-25 | Sydney L. Whipps |
| A method and apparatus for measuring and displaying the movement of a ship wherein the longitudinal and lateral velocity of the ship are measured. The longitudinal and lateral velocities are combined with the rate-of-turn of the ship to provide indications of the lateral movement of the ship at a plurality of locations in combination with the longitudinal movement of the ship. | ||||||
| 138 | Anti-caking composition | US36588573 | 1973-06-01 | US3926841A | 1975-12-16 | HABASKO WERNER; SYROVATKA RUDOLF |
| An improved anti-caking composition for addition to particulate salts, particularly fertilizer particles, to prevent their coalescence and caking, containing a cationic aliphatic amine and a carboxylic acid, is provided by the inclusion of a small amount of an alkali.
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| 139 | Flow velocity measurement | US32672073 | 1973-01-26 | US3844170A | 1974-10-29 | CRITTEN D |
| A method of detecting the velocity of a flow which comprises deriving from each of a first pair of positions spaced apart in the direction of flow a signal corresponding to radiative noise in the flowing system, multiplying said signals together and either auto-correlating the product or cross-correlating the product with the product signal obtained by multiplying together further signals corresponding to radiative noise in the flowing system and derived from each of a second pair of positions spaced apart in the direction of flow.
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| 140 | Method and apparatus for sensing the relative direction and velocity of movement of a body in a liquid or gas medium | US3797309D | 1972-07-31 | US3797309A | 1974-03-19 | JOY R; COTTON R |
| A method of and an apparatus for determining the relative direction and velocity of movement between an object and a fluid stream (either gas or liquid) using the Karman vortex phenomena is disclosed. In one form, two omnidirectional ring-shaped struts, at least one of which has a varying thickness, are each mounted between a pair of sonic transducers. One of each pair of sonic transducers is a transmitting transducer, and the other is a receiving transducer. The transmitting transducers transmit sonic signals toward the Karman vortices formed in the wake of their related omnidirectional struts. The vortices modulate the transmitted signal and the modulated signal is received by the receiving transducers. The two thusly received modulated signals are compared in a manner such that the relative direction and the velocity of movement between the strut and the fluid stream is determined. In a second form, two tubes are mounted in orthogonal directions relative to one another. A vortex sensing arrangement is located in either end of each tube to sense the rate of fluid flow entering the ends of the tubes. The thusly measured rates of fluid flow are combined to determine the relative direction and velocity of movement between the tubes and the fluid stream in which the tubes are located.
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