Patents
Sitemap › G01 - Measuring; Testing › G01P - Measuring linear or angular speed, acceleration, deceleration or shock; Indicating presence or absence of movement; indicating direction of movement › G01P 3 - Measuring linear or angular speed; Measuring differences of linear or angular speeds
Patents for G01P 3 - Measuring linear or angular speed; Measuring differences of linear or angular speeds (19,542)
11/1989
11/21/1989US4882479 Optical rotary encoder using dual frequency beat difference
11/15/1989EP0341883A2 Hybrid analog digital control method and apparatus for estimation of absolute velocity in active suspension system
11/15/1989EP0341445A1 Method of and apparatus for measuring revolution speed
11/15/1989EP0341398A2 Scanning device for determining the revolution number of a combustion engine
11/15/1989EP0226574B1 Magnetoresistive sensor for producing electric signals
11/14/1989US4881187 Cycle computer with improved switch and push-button arrangement to facilitate resetting
11/14/1989US4881174 Sinusoidal signal frequency measuring device
11/14/1989US4880966 Tachometer sensor using a lens system to a in sensing the rotational speed of an object
11/08/1989EP0341142A2 Observation method including the scanning of a celestial body and the measurement of the angular velocity of a space vehicle, observation system for its application and space vehicle provided with this system
11/08/1989EP0340480A1 Method to determine the speed of a machine
11/02/1989EP0339625A1 Broadband optical detection of transient motion from a scattering surface
11/02/1989DE3813754A1 Device for detecting the angular position of a rotatable body
11/01/1989CN2047021U High-pressure switch parameter test instrument
10/1989
10/31/1989US4878074 Dynamic particulate observation apparatus
10/31/1989US4877323 Method and apparatus for inspecting a high speed web
10/26/1989DE3812554A1 Anemometer with optical propeller scanning
10/24/1989US4876650 Anti-skid automotive brake control system including wheel deceleration calculation with shorter lag-time and method for performing calculation
10/24/1989US4876527 Vehicle speed detecting device
10/24/1989US4875785 Thrust bearing with a magnetic field detector
10/24/1989US4875769 Velocimeter for a printing press web
10/19/1989DE3911389A1 Servosystem fuer einen motor Servo system for a motor
10/18/1989EP0337824A2 Bearing with a magnetic sensor with a self-compensating detecting circuit
10/18/1989EP0337100A2 Method and apparatus for measuring rotation speed
10/17/1989US4874245 Optical shaft angular and torsional displacement and speed sensing system
10/11/1989EP0336078A1 Apparatus for the measurement of the rotational speed and the position of a rotor of an electric machine
10/11/1989CN1036268A Method and device for measuring rotation speed
10/10/1989CA1262267A1 Generator wheel for an angular pulse generator
10/05/1989DE3809887A1 Sensor for measuring mechanical motion quantities
10/04/1989EP0334854A1 Measurement system for rotation angle and/or rotation speed.
10/04/1989EP0178298B1 Method and apparatus for the contact-free measurement of a motion
10/04/1989CN2045495U Multifunction mini-detector for vehicle
10/03/1989US4872208 Compact monopole digital tachometer generator for use in airborne vehicles
10/03/1989US4872116 Vehicle motion estimating system of hybrid type
10/03/1989US4871058 Machine control apparatus using wire capacitance sensor
09/1989
09/28/1989DE3808977A1 Method and device for measuring an angular offset
09/27/1989EP0334693A1 Improved speed measuring device
09/27/1989EP0334441A1 Capacitive transducer
09/27/1989EP0333929A2 Photoelectric position measuring device
09/26/1989US4870270 Fiber optic speed sensing for a rotating shaft
09/26/1989US4869347 Speed control apparatus for elevators
09/26/1989CA1259972A1 Fluid compressor with rotational speed detecting device
09/26/1989CA1259821A1 Stroboscopic method for determining gear mesh quality
09/21/1989WO1989008846A1 Process and device for measuring the rotational speed of a wheel in a vehicle brake system with anti-blocking unit
09/21/1989WO1989008574A1 Process and circuit arrangement for controlling a brake system with anti-blocking and/or anti-skid device
09/20/1989EP0333572A1 Formatting and utilisation device for induced waves generated by a DC motor, especially for position control
09/20/1989EP0332613A1 Pulse shaper for inductive transmitter.
09/20/1989EP0332612A1 Ferromagnetic drive and velocity sensors for a coriolis mass flow rate meter.
09/19/1989US4868497 Determining angular velocity from two quadrature signals by squaring the derivative of each signal and taking the square root of the sum
09/19/1989US4868443 Tachogenerator for electric machines
09/19/1989US4866987 Optical transducer systems
09/19/1989CA1259683A1 Compressor with rotation detection device
09/13/1989EP0332296A2 Rotational speed sensing methods and apparatus
09/13/1989EP0332293A2 Apparatus for measuring speed
09/13/1989EP0332196A1 Method and apparatus for measuring the rotational speed of a wheel in an anti-skid break control system for vehicles
09/13/1989CN2044350U Multi-functional speed meter for mine electromechanical vehicle
09/13/1989CN1035572A Scannable document velocity detecotr
09/12/1989US4866376 Cross-oil instrument having testing apparatus for vehicular sensor disconnection indication
09/12/1989US4866269 Optical shaft position and speed sensor
09/12/1989US4866268 Optical fast synchronization shaft position and speed sensor
09/12/1989US4865468 Wheel bearing assembly for automotive wheel
09/12/1989US4864861 Frame assembly and dither drive for a coriolis rate sensor
09/12/1989US4864860 Electrical apparatus for a ski
09/08/1989WO1989008206A1 Device for fixing a ring on a shaft
09/06/1989EP0331670A1 Method and device to determine the internal ballistic characteristics of guns
09/06/1989EP0331602A2 Angular rate sensor nozzle
09/06/1989EP0330815A2 Protective case of tachometer generator
09/05/1989US4864515 Electronic sensing screen for measuring projectile parameters
09/05/1989US4864231 Bearing assembly having a wheel speed sensor
09/05/1989US4864230 Processing quadrature signals
09/05/1989US4863274 Optical shaft torsional displacement and speed sensing system
08/1989
08/31/1989DE3803597A1 Kombinierter drehzahl/temperatur-messwertaufnehmer Combined speed / temperature transducers
08/30/1989EP0330321A2 Tachometer
08/30/1989CN2043759U Optotarget for speed measuring
08/29/1989US4862048 Speed control system
08/29/1989US4862028 Exciter rotor assembly
08/29/1989US4862025 Dual speed sensor pickup assembly
08/29/1989US4861171 Composite cylindrical roller bearing assembly
08/29/1989US4860585 Measuring and indicating device for a snow skier
08/29/1989CA1258914A1 Propeller speed and phase sensor
08/24/1989WO1989006364A3 Optic switch and speed sensor
08/24/1989DE3804721A1 Measurement converter for distance and/or angle measurements on rotating parts in accordance with the carrier-frequency principle
08/23/1989EP0328781A2 A velocimeter for a printing press web
08/22/1989US4860096 Motion analysis tool and method therefor
08/22/1989US4859918 Method and apparatus for producing a speed control voltage for direct current motors in typewriters or similar office machines
08/17/1989DE3902809A1 Vehicle with a driven steered axle
08/17/1989DE3803241A1 Programmable universal pulse transmitter with parameter-controlled adaptation to different measurement value pick ups
08/15/1989US4857784 Motor having rotation speed detection mechanism
08/15/1989US4856996 Cycling pedal stroke monitoring system
08/15/1989US4856895 Method and apparatus for headbox jet velocity measurement
08/15/1989US4856760 Control method and apparatus
08/15/1989US4856332 Angular rate sensor nozzle
08/10/1989WO1989007309A1 Torsion transducer
08/10/1989WO1989007273A1 Device for generating a tachometric signal
08/10/1989WO1989007247A1 Combined rotational speed/temperature measuring device
08/10/1989WO1989007058A1 Vehicle with driven steering axle
08/09/1989EP0327434A1 Bearing with an information sensor
08/09/1989CN1034618A Monochrome four-beam frequency-shift three-dimensional laser tachometer
08/02/1989EP0326454A1 Ball bearing with a sensor device
08/02/1989EP0325981A1 Circuitry with position or angle dependent signal generators
08/01/1989US4853604 Position and speed sensors
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