| 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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| 10/31/1990 | EP0394602A1 Method for measuring flow direction and flow velocity of a fluid utilizing pulse-laser-light-sheet and an apparatus used therefor |
| 10/31/1990 | DE3914216A1 Advancement rate monitor for discontinuously flowing medium - uses heater for local warming of medium and temp. sensor supplying signal to evaluating unit |
| 10/30/1990 | US4966037 Cantilever semiconductor device |
| 10/24/1990 | EP0393141A1 Silicon-based mass airflow sensor. |
| 10/24/1990 | EP0220289B1 Non-invasive blood flow measurements utilizing autoregressive analysis with averaged reflection coefficients |
| 10/23/1990 | US4965573 Forward looking windshear detection system |
| 10/18/1990 | DE4008577A1 Probe for local flow rate measurement - in liq. metal, esp. gas-stirred melts or immiscible melts |
| 10/17/1990 | EP0392897A2 Three-parameter optical fiber sensor and system |
| 10/16/1990 | US4963019 Groundwater azimuth detection |
| 10/10/1990 | CN2063645U Electronic wind meter |
| 10/04/1990 | WO1990011528A1 Process and device for extracting certain parameters from the features of an unsteady flow based on a complex-value doppler signal |
| 10/04/1990 | WO1990011494A1 Process and device for real-time spectral analysis of complex unsteady signals |
| 10/04/1990 | DE4009833A1 Air measurement arrangement for IC engine induction air quantity |
| 10/03/1990 | EP0389771A2 Optical equipment of fiber laser Doppler velocimeter |
| 09/27/1990 | DE3909621A1 Speed measuring method |
| 09/26/1990 | EP0389305A2 Procedure to determine average windspeed relative to the ground in a flying aircraft |
| 09/20/1990 | WO1990010876A1 Electro-optical method and system for determining the direction of motion in double-exposure velocimetry by shifting an optical image field |
| 09/20/1990 | WO1990010492A1 Water separator for air data sensor |
| 09/19/1990 | EP0387415A1 Method and apparatus for the determination of the average frequency of a random sequence of burst signals |
| 09/19/1990 | CN2062449U Hull electromagnetic speed sensor |
| 09/18/1990 | US4956997 Watercraft |
| 09/12/1990 | EP0387025A1 Temperature compensating circuit |
| 09/12/1990 | EP0386665A2 Method and apparatus for measuring particles in polydispersive systems, and concentration of particles of monodispersive aerosols |
| 09/12/1990 | EP0386481A1 Method and device for flow measurement |
| 09/12/1990 | CN1009579B Pn conjunction senser relative with the temperature changing |
| 09/11/1990 | US4955386 Pulse doppler flow speed meter |
| 09/04/1990 | US4953408 Capacitive type electromagnetic flowmeter |
| 08/28/1990 | US4952904 Smooth metal oxide layer in between platinum layer and silicon nitride substrates: withstands annealing temperature |
| 08/23/1990 | WO1990009597A1 Personal speed measuring equipment |
| 08/23/1990 | DE4003638A1 Flow rate monitor using electric temp. difference measurement - has hollow cylindrical measuring pin containing temp. measuring elements and electric heating element |
| 08/22/1990 | CN2060887U Device for measuring ground water speed and direction |
| 08/19/1990 | WO1990009567A1 Flowmeter |
| 08/14/1990 | US4948257 Laser optical measuring device and method for stabilizing fringe pattern spacing |
| 08/14/1990 | US4947688 Flow velocity sensor |
| 08/14/1990 | US4947683 Pulsed ultrasonic doppler borehole fluid measuring apparatus |
| 08/08/1990 | EP0380937A1 Inductive-flow meter |
| 08/08/1990 | EP0380653A1 Thermal-image camera with a cooled detector mosaic. |
| 08/08/1990 | EP0380581A1 Fluid flow detector |
| 08/07/1990 | CA1272397A1 Method for measuring the direction and force of gaseous or liquid flows and probe for carrying out this method |
| 08/01/1990 | EP0380268A1 Doppler blood flow system and method using low frequency noise signal processing |
| 08/01/1990 | CN2059988U Measurer for overhauling hydraulic system |
| 07/31/1990 | US4945276 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 |
| 07/26/1990 | DE3901985A1 Device and method for producing moving interference patterns |
| 07/26/1990 | CA2007157A1 Doppler blood flow system and method using low frequency noise signal processing |
| 07/18/1990 | CN2059505U Polarity correlator |
| 07/10/1990 | US4940330 Laser Doppler anemometer |
| 07/05/1990 | DE3940832A1 Fibre optic flow monitor for multiple phase flows - contains fibre optical position filter acting as differential grid for flow contg. ferromagnetic impurities |
| 07/04/1990 | EP0376144A1 Anemometer |
| 06/27/1990 | EP0375399A2 Adhesion layer for platinum based sensors |
| 06/27/1990 | EP0374822A1 Pulsed fluorescence velocimeter and method for fluorescence measurement of velocity |
| 06/27/1990 | EP0374607A1 Apparatuses for the determination of movement of an airborne vehicle in the atmosphere |
| 06/27/1990 | EP0327545A4 Determination of particle size and electric charge. |
| 06/26/1990 | US4937571 System for elaborating an alarm signal on board an aircraft in the event of a mini-tornado |
| 06/26/1990 | US4936145 Heatable electric resistor for flow meters |
| 06/26/1990 | US4936144 Directional thermal anemometer transducer |
| 06/26/1990 | EP0368989A4 Wind shear recovery guidance system with stall protection. |
| 06/23/1990 | CA2000030A1 Adhesion layer for platinum based sensors |
| 06/20/1990 | EP0374027A1 Multi-directional laser anemometer |
| 06/20/1990 | EP0373965A2 Fluid flowmeter composition correction |
| 06/20/1990 | EP0373414A1 Method and device to measure fluidic or calorimetric parameters |
| 06/20/1990 | EP0373394A1 Method for the determination of the frequency of short bursts of electric signals |
| 06/19/1990 | US4934373 Method and apparatus for synthesizing a continuous estimate signal from segments of a Gaussian signal provided by ultra sonic doppler measurement on a fluid flow |
| 06/13/1990 | EP0155945B1 Integrated threshold arming method and apparatus |
| 06/13/1990 | DE3841398A1 Schlieren optical device for the quantification of light-deflecting effects |
| 06/13/1990 | DE3841135A1 Measuring element |
| 06/12/1990 | US4932415 Method of color coding two dimensional ulltrasonic doppler velocity images of blood flow on a display |
| 06/12/1990 | US4932256 Heat transmission measuring instrument, in particular flow monitor |
| 06/12/1990 | US4932255 Flow sensing using surface acoustic waves |
| 06/12/1990 | US4932249 Speedometer for marine vessels |
| 06/05/1990 | US4930513 Two dimensional processing of pulsed Doppler signals |
| 05/23/1990 | EP0369580A2 Forward looking windshear detection apparatus and method |
| 05/23/1990 | EP0368989A1 Wind shear recovery guidance system with stall protection |
| 05/22/1990 | US4926697 Differential pressure transmitter, a square root extracting device therefor and methods of making the same |
| 05/17/1990 | WO1990005310A2 Optical determination of velocity |
| 05/17/1990 | WO1990005283A1 Method and apparatus for measuring mass flow |
| 05/17/1990 | WO1990004946A1 Ultrasonic diagnostic apparatus |
| 05/15/1990 | US4925297 Three-dimensional laser velocimeter simultaneity detector |
| 05/15/1990 | US4925296 Method of, and apparatus for measuring the flow velocity in wind tunnels |
| 05/11/1990 | CA2002809A1 Optical determination of velocity |
| 05/08/1990 | US4923298 Device for measuring the speed of moving light-scattering objects |
| 05/08/1990 | US4922750 Ultrasound phase difference method for measuring high flow rates |
| 05/01/1990 | US4920808 Device and method for measuring the flow velocity of a free flow in three dimensions |
| 05/01/1990 | US4920793 Directional thermal anemometer transducer |
| 04/30/1990 | CA2001798A1 Method and apparatus for measuring mass flow |
| 04/26/1990 | DE3905929C1 Method and device for detecting side (cross) wind influencing the handling of a vehicle |
| 04/24/1990 | US4919536 System for measuring velocity field of fluid flow utilizing a laser-doppler spectral image converter |
| 04/18/1990 | EP0363695A1 Sensor for determining low speed currents in a pipe section |
| 04/17/1990 | US4917940 Electroconductive surface has a thermoplastic resin layer, fused silica, resistive metal film and electrical connectors |
| 04/17/1990 | US4916947 Speed detecting device for marine propulsion unit |
| 04/17/1990 | CA1267968A1 Ultrasonic device for measuring acceleration of moving reflective member |
| 04/17/1990 | CA1267790A1 Fiber optic doppler anemometer |
| 04/12/1990 | DE3834108A1 Auxiliary apparatus for assisting sportsmen |
| 04/11/1990 | EP0362631A1 Doppler flow rate meter |
| 04/10/1990 | US4916644 Running speed detecting device for marine vessels |
| 04/10/1990 | US4915778 Method of fabricating an apparatus for measuring velocity of flow |
| 04/10/1990 | US4915111 Blood flow imaging method |
| 04/10/1990 | US4914959 Ultrasonic flow meter using obliquely directed transducers |
| 04/10/1990 | US4914946 Vessel speed detecting device |
| 04/10/1990 | US4914945 For a water craft |
| 04/05/1990 | WO1990003650A1 Metallization systems for heater/sensor elements |