| 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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| 06/05/1991 | CN1012754B Hot wire air flowmeter |
| 06/04/1991 | US5020374 Acoustic emission |
| 06/04/1991 | US5020214 Method of manufacturing a hot wire air flow meter |
| 05/30/1991 | WO1991007642A1 Velocity measurement system |
| 05/29/1991 | WO1991009283A2 Linearization of a sensing bridge circuit output |
| 05/29/1991 | CA2066028A1 Linearization of a sensing bridge circuit output |
| 05/28/1991 | US5018391 Inductive flow meter |
| 05/16/1991 | WO1991006244A1 A system and a method for measurement and presentation of fluid flow movements, particularly the flow of blood through a body organ |
| 05/15/1991 | EP0427018A2 Measuring device for measuring the speed of a fluid |
| 05/08/1991 | EP0426341A2 Particle size and velocity determination |
| 05/08/1991 | EP0426309A2 Measurement system |
| 05/08/1991 | DE3936950A1 Laser doppler anemometer for measuring particle speed in flowing media |
| 05/07/1991 | US5013928 Optical equipment of fiber laser Doppler velocimeter |
| 05/02/1991 | EP0425120A2 Averaging pitot probe |
| 05/01/1991 | CN1012533B Device for measuring speed of fluids |
| 05/01/1991 | CN1012532B Measurement of flow rate of powder from a hopper |
| 04/30/1991 | US5011279 Fiber-optical sensor |
| 04/30/1991 | US5011278 Optical correlator method and apparatus for particle image velocimetry processing |
| 04/30/1991 | US5010771 Fast response, high sensitivity manometric wind sensor |
| 04/30/1991 | CA1283560C Air pressure measurement element and system incorporating same |
| 04/17/1991 | EP0422212A1 Optical correlator method and apparatus for particle image velocimetry processing |
| 04/17/1991 | EP0422158A1 Process and device for extracting certain parameters from the features of an unsteady flow based on a complex-value doppler signal |
| 04/16/1991 | US5007731 Doppler fluid flow velocity measuring apparatus and method utilizing imaging of scattered light |
| 04/16/1991 | US5007286 Solid-state transducer based dynamic fluid flow sensing system |
| 04/11/1991 | DE4025883A1 Differential pressure manometer and thermal meter - has membrane maintained in position by capacitor whose voltage is proportional to thermal medium flow rate |
| 04/11/1991 | DE3931119C1 Simultaneously measuring size and speed of particles and bubbles - applying pair of crossing beams of different wavelengths and intensity distribution to multiphase carrying stream |
| 04/10/1991 | EP0421585A2 Zero point offset compensating circuit |
| 04/10/1991 | EP0421465A2 Doppler flow sensing device and method for its use |
| 04/09/1991 | US5006421 Metalization systems for heater/sensor elements |
| 04/09/1991 | CA1282867C Thin film orthogonal microsensor for air flow and method |
| 04/06/1991 | CA2026795A1 Doppler flow sensing device and method for its use |
| 04/04/1991 | DE4029243A1 Fluid flow speed measuring appts. - has two excitation coils on outer surface of joining pipe assigned to ends of locating coil |
| 04/02/1991 | US5005144 Signal processing system for flow velocity in laser doppler velocimeter |
| 04/02/1991 | US5004439 Speed detecting device for marine propulsion unit |
| 04/02/1991 | US5003820 Electronic speedometer for snow skis |
| 04/02/1991 | CA1282500C Flow measurement |
| 03/28/1991 | DE4025644A1 Heat-sensitive flow sensor with bridge circuit - comprising resistor formed on substrate placed in stream path |
| 03/28/1991 | DE3930854A1 Stalling speed danger warning appts. for pilot - has electronic unit evaluating dynamic air pressures picked-up from two positions on aircraft |
| 03/27/1991 | EP0418224A1 Transducer device operating with ultrasound for the measurement of the flow velocity of a fluid in a pipe. |
| 03/26/1991 | US5002389 Pulsed fluorescence velocimeter |
| 03/21/1991 | WO1991003739A1 Flow speed meter for channels or road tunnels |
| 03/20/1991 | EP0261123B1 Integrated flow meter and method for producing it |
| 03/19/1991 | US5000566 Optical velocimeter |
| 03/19/1991 | US5000478 Shock absorber with Doppler fluid velocity sensor |
| 03/14/1991 | DE4026998A1 Monitor for continuous pressure ratio between two regions - contains temp. sensors before and after heater in connecting line |
| 03/12/1991 | CA1281209C Drain manifold for air data sensor |
| 03/05/1991 | US4997272 4π laser Doppler anemometer (LDA) for measuring the velocities of moving objects |
| 03/05/1991 | US4996886 Differential pressure transmitter and a square root extracting device therefor |
| 03/05/1991 | US4996876 Microrheoscopic detector for gas flows |
| 02/26/1991 | US4995400 Flow tube with a mouthpiece |
| 02/26/1991 | US4995397 Pulse doppler flow speed meter |
| 02/21/1991 | DE3927351A1 Wind speed=direction measuring unit with transmitter block |
| 02/19/1991 | US4993418 Doppler blood flow system and method using low frequency noise signal processing |
| 02/13/1991 | EP0412106A1 Accelerometer |
| 02/08/1991 | WO1991002224A1 Dust deflector for silicon mass airflow sensor |
| 02/08/1991 | CA2060188A1 Dust deflector for silicon mass airflow sensor |
| 02/05/1991 | US4989969 Time of flight velocimeter |
| 02/04/1991 | WO1991002218A1 A solid-state transducer based dynamic fluid flow sensing system |
| 02/04/1991 | CA2064590A1 Solid-state transducer based dynamic fluid sensing system |
| 01/31/1991 | DE3923854A1 Side-wind measuring system for motor vehicle |
| 01/29/1991 | US4988191 Electro-optical method and system for determining the direction of motion in double-exposure velocimetry by shifting an optical image field |
| 01/29/1991 | US4988190 Absorption line filter window and method for velocity measurements by light scattering |
| 01/24/1991 | DE3923502A1 Electro-optical modulator-demodulator - esp. heterodyne laser doppler anemometer |
| 01/23/1991 | EP0409178A2 Sensor and method for measuring the relative speed of an air or gasflow of transsonic or supersonic speed |
| 01/23/1991 | EP0408886A2 Fender with a measuring and computing arrangement serving for the determination of cross-wind influences on vehicles |
| 01/22/1991 | US4987542 Arrangement for determining the effects of cross winds on vehicles |
| 01/22/1991 | US4986671 Three-parameter optical fiber sensor and system |
| 01/22/1991 | US4986122 Fluid velocity measurement instrument |
| 01/22/1991 | US4986115 Internal combustion engine |
| 01/10/1991 | WO1990005310A3 Optical determination of velocity |
| 01/10/1991 | DE3921834A1 Wind pendulum switch - measures wind load independently of direction with externally mounted active switching element and continuous adjustment control rim, |
| 01/09/1991 | EP0406704A1 Ultrasonic diagnostic apparatus |
| 01/09/1991 | EP0406244A1 A flowmeter. |
| 01/08/1991 | US4982605 Air flow monitor and temperature compensating circuit therefor |
| 01/02/1991 | EP0406061A1 Apparatus attached to a moveable device to obtain signals representative of the speed of the device relative to a fluid, and measurement system incorporating such apparatus |
| 01/02/1991 | EP0406058A1 Wind-speed measurement apparatus for medium altitude |
| 01/02/1991 | CN2068684U Asymmetric s-type impact tube |
| 01/01/1991 | US4981038 Measuring fluid pressure |
| 01/01/1991 | US4981035 Internal combustion engine |
| 12/30/1990 | CA2020056A1 Ultrasonic diagnostic apparatus |
| 12/25/1990 | US4979818 Apparatus for measuring movement of light scattering bodies in an object |
| 12/19/1990 | EP0403142A2 Compensated thermal flux mass flowmeter |
| 12/19/1990 | EP0402977A1 Device for determining the speed and direction of a flowing medium |
| 12/18/1990 | CA1277851C Laser doppler spectrometer for the statistical study of the behavior of microscopic organisms |
| 12/13/1990 | WO1990015334A1 Winds aloft estimation through radar observation of aircraft |
| 12/12/1990 | EP0402224A1 Method and apparatus to determine the airspeed of a helicopter |
| 12/11/1990 | US4976145 Flow rate meter |
| 12/11/1990 | CA1277749C High resolution imaging doppler interferometer |
| 12/05/1990 | EP0400012A1 Circuit arrangement with a flow probe actuated by a bridge circuit |
| 12/04/1990 | US4975237 Dynamic light scattering apparatus |
| 12/04/1990 | US4974960 Laser doppler anemometer using high-frequency laser pulses |
| 11/27/1990 | US4972708 Thermal mass flow-meter particularly for gases |
| 11/27/1990 | CA1276811C Jet velocity measuring apparatus |
| 11/21/1990 | CN1010507B Two-demension laser doppler speedometer with dual differential acousto acoustooptic optic frequency shift |
| 11/13/1990 | US4970651 Autonomous kinematic measurement system for helicopters |
| 11/13/1990 | US4969357 Compensated thermal flux mass flowmeter |
| 11/07/1990 | EP0396257A1 Method and apparatus for measuring the velocity of a fluid |
| 11/06/1990 | US4968879 Method and apparatus for measuring aircraft flight parameters |
| 11/06/1990 | US4967603 Inductive flow probe for measuring the flow velocity of a stream of liquid metal |
| 11/01/1990 | WO1990013036A1 Optical correlator method and apparatus for particle image velocimetry processing |