| Patents for G01P 3 - Measuring linear or angular speed; Measuring differences of linear or angular speeds (19,542) |
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| 04/10/1990 | US4916390 Coil spring toothed wheel for use in measuring an angular velocity |
| 04/10/1990 | US4915512 Thrust bearing with a magnetic field sensor |
| 04/10/1990 | US4915499 Optical device using a matched interferometric analyzer and filter |
| 04/10/1990 | US4915199 Rotary member supporting apparatus |
| 04/04/1990 | EP0361154A2 Rotor for a brushless induction motor |
| 04/03/1990 | US4914713 Rotation detection or speed pickup device for miniature d-c motor |
| 04/03/1990 | US4914387 Magnetic speed sensor with an adaptive threshold circuit for use with a bearing assembly |
| 03/28/1990 | EP0359908A1 Fuze-setting device for a time fuze |
| 03/28/1990 | EP0359855A1 Tachometer device for a commutator motor |
| 03/28/1990 | EP0359854A1 Tachometer device for an electromotor with windings on the rotor |
| 03/28/1990 | EP0359853A1 Electromotor drive, in particular driving servo for a vehicle |
| 03/27/1990 | US4912661 Tracking and resampling method and apparatus for monitoring the performance of rotating machines |
| 03/27/1990 | US4912519 Laser speckle velocity-measuring apparatus |
| 03/27/1990 | US4911005 Velocity-measuring device |
| 03/27/1990 | US4911000 Rotation detecting device of an automatic transmission |
| 03/21/1990 | EP0359422A1 Inductive speed sensor |
| 03/21/1990 | EP0358989A2 Position or speed sensing apparatus |
| 03/21/1990 | EP0358887A2 Error detection circuit for a measuring device |
| 03/15/1990 | DE3830164A1 Method for rotational speed measurement on electric motors |
| 03/14/1990 | EP0358381A1 Speed sensor having switching hysteresis |
| 03/14/1990 | EP0358320A2 Rotation sensor |
| 03/14/1990 | EP0358311A1 Apparatus for measuring speed and length of a web, which is conveyed on a transporting device |
| 03/14/1990 | EP0357870A2 Unitary rotational speed sensor |
| 03/13/1990 | US4908572 Rotational speed sensor with unfixed and/or fixed edge speed calculation modes |
| 03/13/1990 | US4907445 Automobile wheel bearing unit |
| 03/08/1990 | WO1990002410A1 Speed detector |
| 03/08/1990 | EP0344221A4 A frame assembly and dither drive for a coriolis rate sensor. |
| 03/08/1990 | DE3922319A1 Verfahren sowie vorrichtung zur beruehrungs-bzw. Method and device for touch or. kontaktlosen messung contactless measurement |
| 03/08/1990 | DE3829875A1 Circuit arrangement for monitoring an inductive sensor |
| 03/07/1990 | EP0357199A2 Improved position sensor |
| 03/07/1990 | EP0356826A2 Speed sensor pickup assembly with slotted magnet |
| 03/06/1990 | US4906923 Speed detecting apparatus including a multi-coil device |
| 03/06/1990 | US4905507 Multiple-function motion sensor for automotive vehicle slip and attitude control |
| 02/28/1990 | EP0355994A1 Cross-correlation apparatus and methods |
| 02/28/1990 | EP0355502A1 Wheel rotational speed-sensing circuit and method |
| 02/28/1990 | CN1007029B Speed controll apparatus for a synchronous motor |
| 02/27/1990 | US4905107 Torsion transducer for magnetic storage disk drives |
| 02/27/1990 | US4904937 Apparatus for magnetically detecting positions with minimum length magnetic information units recorded on a plurality of magnetic tracks |
| 02/27/1990 | US4904936 Automotive wheel speed sensor including ferromagnetic flux carrying cup closing an opening in the wheel bearing housing |
| 02/21/1990 | CN2053341U Laser doppler speed tester with sound-light scanning |
| 02/21/1990 | CN1006926B Compressor with rotation detecting device |
| 02/20/1990 | USRE33167 Circuit arrangement for monitoring speed of a drive motor |
| 02/20/1990 | US4902923 Motor having frequency generator |
| 02/20/1990 | US4902135 Object movement measuring apparatus |
| 02/20/1990 | US4901697 Device for controlling an internal combustion engine |
| 02/20/1990 | US4901562 Vehicle wheel speed sensor for a drive axle |
| 02/13/1990 | US4901015 Ambient electromagnetic field compensating magnetic pick-up circuit for integrated drive generators |
| 02/13/1990 | US4901014 Elastic bearing arrangement for rotational signal generator |
| 02/08/1990 | WO1990001172A1 Light scattering measuring apparatus |
| 02/07/1990 | EP0353337A1 Ring-shaped rotational element having permanent magnets for revolution speed sensors |
| 02/07/1990 | CN1039373A Underfloor wheel lathe for reproducing wheel band of railway vehicles wheel sets |
| 02/01/1990 | DE3924448A1 Verfahren zum bestimmen einer geschwindigkeit eines fahrzeuges, das mit einer antiblockierbremsanlage ausgeruestet ist A method for determining a speed of a vehicle equipped with an antilock braking system |
| 01/31/1990 | EP0352315A1 Device for generating a tachometric signal |
| 01/31/1990 | CN1039305A Method and device for monitoring car speed |
| 01/30/1990 | US4897635 Rotary device synchronizer |
| 01/30/1990 | US4897603 Arrangement for determining the speed and rotor position of an electric machine |
| 01/25/1990 | DE3824811A1 Method for measuring the number of revolutions of a DC motor |
| 01/24/1990 | EP0351558A2 Motion analysis tool and method therefor |
| 01/18/1990 | DE3837909C1 Method and arrangement for measuring speed and displacement in the case of motive power (tractive) units providing total adhesion |
| 01/17/1990 | EP0351175A2 A frequency generator |
| 01/17/1990 | EP0350636A1 Underfloor wheelset lathe for reprofiling the contours of wheel rims of railway wheel sets |
| 01/16/1990 | US4894613 Inductive speed sensor having switching hysteresis for increasing the magnitude of a phase shift |
| 01/11/1990 | WO1990000253A1 Evaluation of a fluctuating variable |
| 01/11/1990 | DE3920627A1 Device for measuring angular position and speed, in particular for electric motors |
| 01/11/1990 | DE3822566A1 Method for producing an optical cable |
| 01/09/1990 | US4893075 Dual speed sensor pickup assembly with anti-cross talk coils |
| 01/09/1990 | US4892325 Motion detector |
| 01/04/1990 | DE3821938A1 Method and device for digitally determining a number proportional to the rotational speed of a body |
| 01/03/1990 | EP0348747A2 Circuit arrangement for a differential capacitive sensor |
| 01/02/1990 | US4891588 Device for detecting rotation speed having feedback circuitry and improved frequency-response |
| 12/28/1989 | WO1989012925A1 Tacho generator |
| 12/28/1989 | WO1989012799A1 Method of path and angle measurement |
| 12/28/1989 | WO1989012740A1 Method and apparatus for driving an auxiliary device of an internal combustion engine |
| 12/27/1989 | EP0347722A1 Tachometer generator |
| 12/26/1989 | US4890059 Digital tachometer with air gap adjusting yoke insertable through holes in the tachometer housing |
| 12/26/1989 | US4890057 Instrument with crossed-coil type movable magnet |
| 12/20/1989 | EP0346335A1 Measurement detector. |
| 12/20/1989 | CN2049774U Dynamic measurer for oil seal radical force |
| 12/14/1989 | WO1989012234A1 Process and device for speed measurement and location of railway rolling stock |
| 12/14/1989 | DE3818875A1 Device for determining the mass and/or velocity as well as the number of particles in a fluid |
| 12/13/1989 | EP0345556A1 Counter circuitry for motor rotation speed control circuitry |
| 12/07/1989 | DE3842434A1 Method for producing comparison variables for the behaviour of different tennis rackets |
| 12/07/1989 | DE3819085C1 Non-contact optical speed measurement of moving object - adjusting speed of polygon mirror so that detector of light spot on object receives reference speckle structure |
| 12/07/1989 | DE3818505A1 Application of a device for measuring the relative movements between two components |
| 12/06/1989 | EP0345093A2 Rotation detecting apparatus |
| 12/06/1989 | EP0344221A1 A frame assembly and dither drive for a coriolis rate sensor |
| 12/06/1989 | EP0179800B1 Tachometer and rotor identification apparatus for centrifuges |
| 12/05/1989 | US4885710 Method and apparatus for low speed estimation |
| 12/05/1989 | US4884901 Bearing with angle encoding |
| 12/05/1989 | US4884650 Slip detecting system for a four-wheel drive motor vehicle |
| 11/30/1989 | DE3817175A1 Rolling bearing unit for antilocking system |
| 11/29/1989 | EP0343688A2 Optical element, optical system and rotary encoder with the optical element |
| 11/29/1989 | EP0343373A1 Monitoring method for the wire pulse sensors in a rotational transducer for a sensor wire short circuit, and circuit arrangement for carrying out the same |
| 11/29/1989 | EP0343352A1 Method and apparatus for the measurement of the rotational speed of a machine |
| 11/28/1989 | US4884227 Speed detecting apparatus for a vehicle |
| 11/23/1989 | EP0343074A1 Device for measuring angular phase shift, and its use in a torque motor |
| 11/23/1989 | EP0343058A1 Hub assembly of a non-driven vehicle wheel equipped with an emitter and receiver for measuring the angular speed of the wheel |
| 11/23/1989 | EP0342509A1 Angle pulse generator |
| 11/23/1989 | EP0342375A1 Method for checking wire pulse sensors on a rotational transducer for sensor wire short circuit, and circuit arrangement for carrying out the same |
| 11/22/1989 | CN1037380A Magnetic sensor bearing with adaptive threshold circuit |