| Patents for G01P 3 - Measuring linear or angular speed; Measuring differences of linear or angular speeds (19,542) |
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| 08/01/1989 | US4853575 Tachometer generator |
| 07/27/1989 | WO1989006804A1 Speed/rpm transmitting device |
| 07/26/1989 | EP0324895A2 Scannable document velocity detector |
| 07/25/1989 | US4851771 Magnetic encoder for detection of incremental and absolute value displacement |
| 07/25/1989 | US4850939 Variable diameter sprocket assembly |
| 07/25/1989 | US4850722 Antifriction bearing with pulse ring for measurement of speed rotation |
| 07/18/1989 | US4849917 Speed difference measurement in strip casting |
| 07/18/1989 | US4849777 Lamp driver scheme |
| 07/18/1989 | US4849728 Induction generator |
| 07/18/1989 | US4848158 Single-axis centrifugal rate sensor |
| 07/18/1989 | US4848156 Frame assembly and dither drive for a coriolis rate sensor |
| 07/18/1989 | CA1257485A1 Tachometer generator |
| 07/13/1989 | WO1989006364A2 Optic switch and speed sensor |
| 07/13/1989 | DE3744082A1 Pulse transmitter disc, especially for detecting the rotational speed of rotating parts of motor vehicles, and method for producing such |
| 07/13/1989 | DE3743958A1 Measuring device for measuring the rotational behaviour of an object in a motor vehicle |
| 07/12/1989 | EP0323905A2 A speed detecting device |
| 07/12/1989 | EP0323789A1 Wheel hub for motor vehicles |
| 07/12/1989 | EP0323696A2 Tracking and resampling method and apparatus for monitoring the performance of rotating machines |
| 07/12/1989 | EP0323458A1 Device for controlling an internal combustion engine. |
| 07/12/1989 | EP0075013B1 Fiber optic rotation sensor |
| 07/12/1989 | CN2041030U Electronic speed mileage meter for automobile or motorcycle |
| 07/11/1989 | US4847556 Eddy current clearance transducing system |
| 07/11/1989 | US4847555 Device for detecting rotational speed of a motor using first and second sensors and a switching unit to select between the two sensors |
| 07/05/1989 | EP0323159A1 Automobile wheel bearing unit |
| 07/05/1989 | EP0322911A2 Wheel reference velocity calculation apparatus |
| 07/05/1989 | CN1033698A Optical part comprising optical fiber and light element or receiving element and method for making same |
| 07/04/1989 | US4845428 Magnetic rotational detecting arrangement for sensing the speed of a railway vehicle |
| 06/27/1989 | US4843232 Optic switch and speed sensor |
| 06/27/1989 | US4841902 Combined speedometer and tachometer |
| 06/22/1989 | DE3839185A1 Arrangement for measuring the angle/time parameters of a rotating component |
| 06/21/1989 | CN1033485A Digital-type intelligent multifunctional speed-testing meter |
| 06/20/1989 | US4841243 Side-looking speed sensor |
| 06/20/1989 | US4841238 Gauge driving system |
| 06/20/1989 | US4841187 Electric motor with attached tachogenerator |
| 06/14/1989 | EP0320322A2 Bearing with a magnetic field detector |
| 06/14/1989 | EP0188433B1 Device for detecting the angular position of a rotary member |
| 06/14/1989 | CN1033420A Coplanar polarization two-dimensional frequency shift laser speedometer |
| 06/13/1989 | US4839834 Speed detecting apparatus |
| 06/13/1989 | US4839646 Movement parameter sensor |
| 06/13/1989 | US4839589 Method and circuit for determining the speed of rotation of a rotating machine |
| 06/07/1989 | EP0319355A2 Bearing with a magnetic field detector |
| 06/06/1989 | US4837508 Process and device for checking the operational state of a variable reluctance magnetic sensor and their application to automobile electronics |
| 06/01/1989 | WO1989004783A1 Process for correcting the speed of rotation of vehicle wheels determined by wheel sensors |
| 05/31/1989 | CN2038623U Magnetic-sensitive instrument for measuring torque and rotating rate under the control of micro-computer |
| 05/30/1989 | US4835505 Magnetic ring for detecting the rotation of an object |
| 05/30/1989 | US4835467 Wheel speed sensor |
| 05/24/1989 | EP0317423A1 Hub assembly of a non-driven vehicle wheel equipped with a transmitter, and receiver for measuring the angular velocity of the wheel |
| 05/24/1989 | CN1033092A Bearing with magnetic field detector |
| 05/23/1989 | US4831879 Sensor for automatic release of occupant protective devices in the event of an accident |
| 05/23/1989 | US4831871 Process and apparatus for calculation of the instantaneous speed of a tool |
| 05/18/1989 | WO1989004426A1 Crankshaft angle sensing system |
| 05/18/1989 | WO1989004263A1 Drive slip regulating system |
| 05/18/1989 | DE3836713A1 Traction control system |
| 05/18/1989 | DE3801171C1 Device for detecting the speed of the shaft of an exhaust gas turbocharger |
| 05/16/1989 | US4830449 Polarimetric fiber optic speed sensor |
| 05/16/1989 | US4829834 Speed and torque sensors |
| 05/10/1989 | EP0315357A1 Tachometer |
| 05/10/1989 | EP0315352A1 Slip detecting system for a four-wheel drive motor vehicle |
| 05/10/1989 | EP0314957A1 Digital revolution sensor |
| 05/10/1989 | CN2037478U Photoelectric measurer for motional ball speed |
| 05/09/1989 | US4829254 Electric motor with velocity indicating device |
| 05/09/1989 | US4829245 Variable reluctance electromagnetic sensor with pole piece-magnet assembly locking mechanism and method of assembly |
| 05/09/1989 | US4827886 Crank angle detecting system for an internal combustion engine |
| 05/05/1989 | WO1989003951A1 Variable diameter sprocket assembly |
| 05/03/1989 | DE3735677A1 Rotary resolver |
| 05/03/1989 | CN1004105B Rotating speed signalling generator |
| 05/02/1989 | US4827175 Flat motor with simplified detector rotor mounting |
| 05/02/1989 | US4825691 Method and apparatus for detecting trouble in pulse generators |
| 04/25/1989 | US4825131 Control system for induction motor driven electric car |
| 04/25/1989 | US4824240 Internal laser interferometer |
| 04/18/1989 | US4823091 Frequency-voltage converter |
| 04/18/1989 | US4823080 Touchless (photo type) and contact digital dual purpose tachometer |
| 04/18/1989 | US4822164 Optical inspection device and method |
| 04/12/1989 | EP0311357A2 Roll rate sensor |
| 04/12/1989 | EP0310776A2 Apparatus for signal transmission from a rotating element to a stationary element, particularly from a wheel of a vehicle to that vehicle |
| 04/11/1989 | US4821218 Method and apparatus for determining at least one characteristic value of movement of a body |
| 04/11/1989 | US4820978 Magnetic rotation sensor wherein a magnetic member is attached to a rotation shaft by a heat resistant elastic member |
| 04/11/1989 | US4820953 Rate of ascent monitor using piezoelectric transducer |
| 04/11/1989 | US4819941 Device for determining swing speed of rotatable implements |
| 04/11/1989 | CA1252285A1 Rotating speed control device of a rotary type electrostatic spray painting device |
| 04/05/1989 | EP0310236A2 Fan blade speed-sensing apparatus |
| 04/05/1989 | EP0309853A1 Optical pulse generator for an electrical motor drive arrangement |
| 04/04/1989 | US4818939 Apparatus for magnetically detecting position or speed or moving body utilizing bridge circuit with series connected MR elements |
| 04/04/1989 | US4818926 Tachometric device driven by an electric motor |
| 03/30/1989 | DE3730218A1 Device, in particular a tachometer wheel, for contactless tapping of rotational speed or contact making in machines |
| 03/28/1989 | US4816722 Digital phase-locked loop filter |
| 03/28/1989 | US4815322 Speed indicator device for vehicles |
| 03/28/1989 | US4815319 System for determining the movement of a track vehicle |
| 03/23/1989 | DE3729949A1 Rotary position transducer with pulsed wire sensors |
| 03/22/1989 | EP0307709A1 Device for detecting the rotation and/or for measuring the rotation speed of a small DC motor with permanent or electro-magnets |
| 03/22/1989 | EP0307644A2 Method and apparatus for detecting the speed of yarn in textile machines |
| 03/21/1989 | US4814704 Rotor position indicator with correction for apparant acceleration and deceleration |
| 03/21/1989 | US4814701 Method and apparatus for determining angular velocity from two signals which are a function of the angle of rotation |
| 03/15/1989 | EP0306850A2 Fixing of a hub cap or a sensing pulse wheel for an anti-blocking brake system to a vehicle wheel hub |
| 03/15/1989 | CN1031764A Crossed coil moving-magnet meter |
| 03/15/1989 | CN1031745A Compressor with rotation detecting device |
| 03/14/1989 | US4811603 Tachometric generator |
| 03/14/1989 | US4811602 Frame assembly and dither drive for a coriolis rate sensor |
| 03/09/1989 | DE3829024A1 Starting aid for supporting a vehicle which is starting on a positive gradient |
| 03/09/1989 | DE3728822A1 Eichverfahren fuer die geschwindigkeitsskala eines moessbauer-spektrometers Calibration procedure for the speed scale of Moessbauer spectrometer |