171031 ⎘
Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by using reflection of acoustical waves, i.e. Doppler-effect
Sub-classes:ACOUSTIC WIND MEASUREMENT
#2Fluid Device And Method For Controlling Fluid Device
#3FLOWMETER AND METHOD FOR MEAUSURING THE FLOW OF A FLUID
#4BERCLAMP-ON ULTRASONIC FLOWMETER
#5UNDERWATER ACOUSTIC RECEIVER APPARATUS AND METHOD OF MONITORING A TARGET PORTION OF A WATER COLUMN
#6LADCP and USBL combined observation device and application method thereof
#7GRAIN CLEANING SYSTEM AND METHOD OF CONTROLLING SUCH
#8FLUID DEVICE
#9Acoustic sources for air data systems
#10AIRBORNE SOUND TRANSDUCER FOR USE IN PRECIPITATION AND THAW CONDITIONS
#11Air data systems
#12Takeoff/landing stability augmentation by active wind gust sensing
#13Signal travel time flow meter
#14HORIZONTAL ACOUSTIC SEDIMENT AND CURRENT PROFILER APPARATUS AND METHODS
#15Echo velocity measurements without using recessed ultrasonic transceiver
#16Measurement of flow rate from a reflected signal
#17Restimulation process using coiled tubing and fiber optics
#18Ultrasound flowmeter and method for measuring flow rate
#19Acoustic illumination for flow-monitoring
#20Flow meter with adaptable beam characteristics
#21STABILIZED MICRO SPATIAL WIND VECTOR DETECTION APPARATUS AND METHOD FOR USE IN MARINE ENVIRONMENTS
#22Doppler shift frequency measuring device, log speed meter and tidal current meter
#23Tidal current meter
#24Floating dual anemometer—mast and doppler
#25System and method for water column aided navigation
#26Acoustic illumination for flow-monitoring
#27Towable stream gauge platform having asymmetrical elastic harness
#28Three-dimensional flow velocity vector, energy and mass gauge
#29Ship speed meter and ship speed measurement method
#30Multi-state beamforming array
#31Target set processing in a fluid flow velocity instrument to reduce noise
#32Instrument and method for processing a doppler measurement signal
#33Housings for phased array monostatic sodar systems
#34Transducer array arrangement and operation for sodar applications
#35Housing for phased array monostatic sodar systems
#36Transducer array arrangement and operation for sodar application
#37Multi-state beamforming array
#38Doppler Signal Processing For An Enhanced Spectral Doppler Image
#39System and method for measuring wave directional spectrum and wave height
#40System and method for acoustic Doppler velocity processing with a phased array transducer including applying correction factors to velocities orthogonal to the transducer face
#41Means for Performing Measurements in a Vessel
#42Method and device for ultrasound measurement of blood flow
#43Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effect
#44Method and apparatus for improving the accuracy with which the speed of a fluid is measured
#45Doppler type ultrasonic flowmeter, flow rate measuring method using doppler type ultrasonic flowmeter and flow rate measuring program used in this doppler type ultrasonic flowmeter
#46Ultrasonic flowmeter and ultrasonic flowmetering method
#47Acoustic doppler downhole fluid flow measurement
#48Method for optimization design of artificial reef structure
#49Lowered acoustic doppler current profiler, utra-short baseline (LADCP-USBL) combined observation and data processing method and apparatus
#50Techniques for mitigating the effects of complex structures on radar systems