| Patents for G01P 5 - Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft (8,453) |
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| 08/08/1989 | US4854174 Colinear fluctuating wall shear stress and fluctuating pressure transducer |
| 08/01/1989 | US4853861 Windshear measurement system |
| 07/25/1989 | US4851697 Apparatus for measuring flow vectors in gas currents |
| 07/25/1989 | US4851666 Optical flow meter |
| 07/25/1989 | US4850364 Medical ultrasound imaging system with velocity-dependent rejection filtering |
| 07/19/1989 | CN1004834B Piezoelectric vortex street flowmeter with wide temp.-range |
| 07/18/1989 | US4848354 Method and apparatus for investigating a circulatory system in living biological structures |
| 07/18/1989 | US4848147 Thermal transient anemometer |
| 07/18/1989 | US4848146 Underwater electromagnetic tubulent velocimeter |
| 07/05/1989 | EP0323005A2 Hot wire type air flow meter |
| 07/05/1989 | EP0322459A1 Hot wire type air flow meter |
| 07/04/1989 | US4843882 Direct-heated flow measuring apparatus having improved sensitivity response speed |
| 07/04/1989 | US4843880 Method for measuring the direction and force of gaseous or liquid flows and probe for carrying out this method |
| 06/29/1989 | WO1989005968A1 Silicon-based sensors and method of making same |
| 06/29/1989 | WO1989005963A1 Silicon-based mass airflow sensor |
| 06/27/1989 | US4843564 Apparatus and method for measuring frequency of coherent component of a composite signal |
| 06/27/1989 | US4843445 Integrated semiconductor circuit and method for producing it, and use of such a circuit for providing a flow meter |
| 06/27/1989 | US4841938 Device for determining the direction of flow |
| 06/27/1989 | US4841769 Apparatus for measuring velocity of flow |
| 06/27/1989 | CA1256300A1 Measuring flow of insulating fluids |
| 06/21/1989 | EP0167550B1 Apparatus for measuring and displaying the speed of a craft, particularly a sail-board |
| 06/21/1989 | CN2039850U Automatic ultrasonic device for flow measuring |
| 06/20/1989 | US4840486 Apparatus for measuring flow vectors in gas currents |
| 06/20/1989 | US4840062 Fiber optic current meter with plastic bucket wheel |
| 06/14/1989 | EP0319871A1 Thin film orthogonal microsensor for air flow and method for its fabrication |
| 06/14/1989 | CN1033420A Coplanar polarization two-dimensional frequency shift laser speedometer |
| 06/13/1989 | US4838687 Method for the simultaneous measurement of three velocity components by means of laser doppler anemometry |
| 06/13/1989 | US4838087 Quad disk static pressure probe |
| 06/07/1989 | EP0319447A2 Apparatus and method for determining airspeed and direction |
| 06/07/1989 | EP0167585B1 Pressure sensing instrument for aircraft |
| 06/06/1989 | US4837512 Method and system for acquiring motional information of object in magnetic resonance |
| 06/06/1989 | US4836020 Marine instrument |
| 06/06/1989 | US4836019 Compact air data sensor |
| 05/31/1989 | EP0318388A1 Apparatus for measuring the fluid-flow in a conduit |
| 05/30/1989 | US4833918 Sensor and method for ullage level and flow detection |
| 05/30/1989 | US4833917 Three-component velocity probe for large scale application |
| 05/24/1989 | EP0316511A2 Transducer structure |
| 05/24/1989 | CN2038226U Measurer of average wind speed with digital control |
| 05/23/1989 | US4831874 Paradac wind measurement system |
| 05/23/1989 | CA1254649A1 Acoustic scintillation liquid flow measurement |
| 05/18/1989 | DE3737188A1 Vorrichtung zur messung der stroemungsgeschwindigkeit der ansaugluft von verbrennungsmotoren Device for measuring the flow velocities of the intake air of internal combustion engines |
| 05/17/1989 | EP0316200A2 Medical ultrasound imaging system |
| 05/17/1989 | EP0316093A2 Velocity distribution measurement apparatus |
| 05/17/1989 | EP0146584B1 Measuring apparatus for the determination of wind speed |
| 05/16/1989 | US4830449 Polarimetric fiber optic speed sensor |
| 05/16/1989 | US4829818 Flow sensor housing |
| 05/16/1989 | US4829814 Hot film type air flow meter |
| 05/16/1989 | US4829813 Method and apparatus for nonintrusively determining mach number |
| 05/09/1989 | US4829441 Method for determining the air speed of a helicopter, system for carrying on this method and method for calibrating such air speed determining method and system |
| 05/09/1989 | US4827942 Flow map apparatus |
| 05/02/1989 | US4825708 Fiber optic velocity sensor/flow meter |
| 05/02/1989 | US4825704 Fluid flow speed measuring apparatus |
| 05/02/1989 | US4825694 Apparatus for measuring velocity of flow |
| 04/26/1989 | EP0313316A2 Fiber optic velocity sensor/flow meter |
| 04/26/1989 | EP0313120A1 Direction-sensitive flow-rate indicator |
| 04/25/1989 | US4825422 Method and apparatus for determining the local velocities in a moving fluid by means of doppler ultrasonic echography |
| 04/20/1989 | WO1989003534A1 Process and device for determining the direction of motion of an electrically conducting object |
| 04/20/1989 | WO1989003512A1 Fluid flow detector |
| 04/19/1989 | EP0311663A1 Transducer for arranging in a fluid, particularly for the measurement of the flow-velocity of a fluid in a pipe, by transmitting/receiving sonic pulses. |
| 04/18/1989 | US4821567 Running speed detecting device for marine vessels |
| 04/18/1989 | CA1252770A1 Surge/stall cessation detection system |
| 04/12/1989 | EP0311176A1 Optical flow meter |
| 04/12/1989 | EP0311130A2 Method and apparatus for determining the direction of movement of an electrically conductive object |
| 04/12/1989 | CN1032400A Supersonic doppler method for measuring velocity coefficient of water flow |
| 04/11/1989 | CA1252307A1 Flow measuring apparatus with analog, essentially linear output |
| 04/05/1989 | EP0310236A2 Fan blade speed-sensing apparatus |
| 04/04/1989 | US4818101 Laser-doppler velocimetry |
| 04/04/1989 | US4818071 Fiber optic doppler anemometer |
| 04/04/1989 | US4817426 Method and an apparatus of determining the angle of an incident flow and/or of the airspeed at a stationary or moving point of measurement |
| 04/04/1989 | CA1251948A1 Improvements relating to solid state anemometers and temperature gauges |
| 04/04/1989 | CA1251946A1 Method and apparatus for optical measurement of fluid flow |
| 03/30/1989 | DE3823642A1 Heatable electric resistance for flow meters |
| 03/30/1989 | DE3730511A1 Monitoring device for a medium, e.g. lubricating (lube) oil, fed in small quantities both discontinuously and continuously to a gas flow |
| 03/22/1989 | EP0307668A2 Method and apparatus for measuring the speed of flow in wind tunnels |
| 03/15/1989 | EP0210194B1 Electrostatic deposition of coating materials |
| 03/15/1989 | CN2034280U Strain tube flow velocity sensor |
| 03/15/1989 | CN1003611B Analogue method and device of slurry conduit transport design parameters |
| 03/09/1989 | WO1989002061A1 Compact air data sensor |
| 03/08/1989 | EP0305609A1 Averaging velocity sensor for measuring fluid flow in a conduit |
| 03/08/1989 | CN2033906U Mini-rotary paddle dynamics flow speed measuring instrument |
| 03/07/1989 | US4810100 Ultrasonic energy transfer sensing system |
| 03/07/1989 | US4809547 Marine speed measuring device |
| 03/01/1989 | EP0305072A2 Mass air flow sensors |
| 02/28/1989 | US4807990 Laser fluorescence velocimeter |
| 02/28/1989 | US4807641 Pneumotach and components therefore and combined pulmonary function measuring kit containing the same |
| 02/23/1989 | DE3826113A1 Device for the determination of the spatial velocity of moving particles, especially in multi-phase flows |
| 02/21/1989 | US4806016 Optical displacement sensor |
| 02/15/1989 | EP0303156A2 Method for Laser Doppler anemometry |
| 02/14/1989 | US4804935 Sensor for measurement by electrical heating and method for manufacture of the same |
| 02/14/1989 | US4804268 Method of measuring the interaction between walls and fluid |
| 02/14/1989 | US4804263 Process for measuring flow vectors in gas currents |
| 02/14/1989 | US4803875 Apparatus for determining the flow rate of a flowing medium |
| 02/09/1989 | WO1989001132A1 Heated semiconductor measurement of fluid flow |
| 02/09/1989 | DE3725087A1 Dynamic pressure wind sensor (anemometer) for speed and direction |
| 02/08/1989 | EP0302444A2 Laser Doppler anemometer |
| 02/08/1989 | EP0302431A2 Systems for, and methods of, providing for a determination of the movement of an airborne vehicle in the atmosphere |
| 02/01/1989 | EP0301534A1 Asymmetrical displacement flowmeter |
| 01/26/1989 | WO1988010457A3 System for producing an alarm signal on board an aircraft in the event of a minitornado |
| 01/18/1989 | CN2031098U Alarm for wind speed |
| 01/10/1989 | US4796634 Methods and apparatus for monitoring cardiac output |