| Patents for G01P 3 - Measuring linear or angular speed; Measuring differences of linear or angular speeds (19,542) |
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| 10/15/1991 | US5057727 Shaft position sensor employing a wiegand-effect device |
| 10/15/1991 | US5056914 Charge integration range detector |
| 10/09/1991 | EP0450192A2 Central centre for vehicle auxiliary devices |
| 10/09/1991 | CN1014215B Under-floor wheel lathe for reproducing wheel band of railway vehicles wheel sets |
| 10/08/1991 | US5055849 Method and device for measuring velocity of target by utilizing doppler shift of electromagnetic radiation |
| 10/02/1991 | EP0449671A2 Bearing with a magnetic field sensor |
| 10/02/1991 | EP0448752A1 Device for position-control of machine parts in metallurgical plants |
| 10/02/1991 | EP0448615A1 A method of optically determining the speed of a surface. |
| 10/02/1991 | DE4109531A1 Rotation measurement device e.g. for vehicle speed instrument - has two toothed rotary parts on rotary shaft and associated electrical resistance sensor |
| 10/02/1991 | DE4009737A1 Contactless detection of motion and=or speed of object - by evaluation of optical sensor signals involving weighting and integration or averaging |
| 10/01/1991 | US5053656 Sensing ring for rotational sensing system |
| 09/25/1991 | EP0447810A2 Measuring device for filling level or other mechanical properties of electrically conductive liquid |
| 09/25/1991 | EP0447641A1 Speed detecting device for non-driving wheels of vehicles |
| 09/25/1991 | EP0447475A1 Optoelectronic sensing device. |
| 09/24/1991 | US5051915 Frequency measuring apparatus |
| 09/24/1991 | US5051693 Bearing seat encoder mount for rotational parameter sensor apparatus |
| 09/24/1991 | US5051692 Processing apparatus for measuring the speed of a rotating body |
| 09/24/1991 | US5051580 Neutral particle beam velocity vector sensing system |
| 09/24/1991 | CA1289381C Tachogenerator |
| 09/19/1991 | CA2077337A1 High modulus multifilament spokes and method |
| 09/18/1991 | EP0446496A2 Shielded magnetizing device and angular rate sensor in which such a device is used |
| 09/17/1991 | CA1289175C Window-in-vane interrupter and switch plate assembly for an ignition distributor |
| 09/12/1991 | DE4040332A1 Liquid electrolytic conductivity measurement - has multiplexer which selects precision resistances for measurement of alternating current between stray field measurement electrodes |
| 09/12/1991 | DE4036262A1 Electrical measuring appts. for level of conductive liq. - uses measuring sensor and evaluating circuit for continuous measurement of level in container or other mechanical data |
| 09/12/1991 | DE4007653A1 Movement sensor esp. for bicycle tachometer - uses magnets on spokes generating alternating magnetic field w.r.t. fixed Wiegand element |
| 09/11/1991 | EP0445441A1 Angular rate sensor |
| 09/11/1991 | EP0273935B1 Method and apparatus for optical nutation sensing |
| 09/11/1991 | CN1054475A High resolution sensor system for internal combustion engines and method of making |
| 09/10/1991 | US5047716 Movement detector employing constant current drive |
| 09/10/1991 | US5047629 Position and motion detector with magnetic coupling and optical detection |
| 09/10/1991 | US5046867 Bearing assembly speed sensor |
| 09/08/1991 | CA2037682A1 Linear tracking means for locating, speed and lenght measuring in high lenght flexible article |
| 09/05/1991 | WO1991013363A2 Signal conditioning circuit |
| 09/05/1991 | DE4006690A1 Measuring speed of moving surface by laser beam - superimposing scattered, Doppler-shifted light unshifted light and measuring resulting beat frequency |
| 09/05/1991 | DE4005709A1 Electric commutator motor drive with electronic motor control - comprising e.g. Hall effect transducer mounted on assembly making contact with brush holder in installed position |
| 09/04/1991 | CN1054316A Transmission output speed sensor |
| 09/04/1991 | CN1054315A Sensor to determine rotational parameters |
| 09/04/1991 | CN1054300A Apparatus for sensing direction and speed of steering wheel shaft |
| 09/03/1991 | USH964 Apparatus for sensing the speed of an element within a torque converter |
| 09/03/1991 | US5045784 Tachometer noise reduction system using a pickup coil to cancel the noise from the tachometer signal |
| 08/28/1991 | EP0443940A2 Apparatus for sensing the direction and speed of a steering wheel shaft |
| 08/28/1991 | EP0443939A1 Sensor to determine rotational parameters |
| 08/28/1991 | EP0443938A2 High resolution sensor system for internal combustion engines |
| 08/28/1991 | EP0443937A1 Speed sensor for transmission output |
| 08/28/1991 | CN1054125A Bearing assemly speed sensor |
| 08/28/1991 | CN1054124A Antifriction bearing assemby speed sensor |
| 08/27/1991 | US5043659 Non-intrusive tachometer for spark ignition autos |
| 08/27/1991 | US5043658 Method for measuring the rotational speed of a wheel in an antilocking-protected vehicle brake system including comparing increase in amplitude and frequency of speed signal |
| 08/27/1991 | CA1288161C System for the determination of the movement of a caterpillar vehicle |
| 08/27/1991 | CA1287985C Apparatus for magnetically detecting position or speed of moving body |
| 08/22/1991 | WO1991012531A1 Method and fast reacting switching circuit for controlling the rotational speed of rotating body |
| 08/21/1991 | EP0442121A2 Gearing system comprising a rotational speed sensor |
| 08/21/1991 | CN1053944A Bearing with magnetic field sensor |
| 08/20/1991 | US5042080 Method and device for measuring rotary speed |
| 08/20/1991 | US5041979 Bounded synchronous angle counter |
| 08/20/1991 | US5041785 Device for measuring a relative displacement of two objects, including a magnetic scale and two mutually perpendicular magnetic sensors which produce two independent phase displaced signals |
| 08/20/1991 | US5041784 Magnetic sensor with rectangular field distorting flux bar |
| 08/20/1991 | US5040412 Evaluation of a fluctuating variable |
| 08/20/1991 | CA1287899C Crankshaft angle sensing system |
| 08/20/1991 | CA1287898C Brushless rotary position transducer |
| 08/14/1991 | EP0441615A2 Speed detection apparatus having a rotation phase detector |
| 08/14/1991 | EP0441376A2 Frequency generator |
| 08/14/1991 | EP0441074A2 Inductive sensor and device for measuring displacements of a movable object |
| 08/14/1991 | EP0440916A1 Circuitry for the processing of signals from a vehicle wheel speed sensor |
| 08/14/1991 | DE4103561A1 Rotary position sensor for detecting rotor position - uses magnetic field sensor providing AC signal during rotor rotation |
| 08/13/1991 | US5039942 Cable supporting insert closing an opening in the housing of an inductive rotational speed sensor |
| 08/13/1991 | US5038471 Process for producing a magnetized ring |
| 08/13/1991 | CA1287686C Combination wristwatch and bicycle computer |
| 08/07/1991 | EP0439996A2 Non-intrusive tachometer for spark ignition autos |
| 08/06/1991 | US5038110 Circuit arrangement for signal recovery in a capacitive difference sensor |
| 08/06/1991 | US5038102 Speed sensor utilizing magneto-optics switch actuated by magnetic field rotation |
| 08/06/1991 | CA1287388C Broadband optical detection of transient motion from a scattering surface |
| 08/01/1991 | DE4002549A1 Signal processing circuit for motor vehicle wheel speed sensors - has differential field plated measurement sensor raises connected into measurement bridge with amplifier providing offset compensation |
| 07/31/1991 | EP0438815A1 Active sensor for a shockabsorber for measuring the relative speed between body and axle |
| 07/31/1991 | EP0438644A1 Method for determining the rotational speed of a shaft |
| 07/31/1991 | EP0438624A1 Device enabling the revolutionary speed to be measured between the races of a rolling bearing for the support of a vehicle wheel |
| 07/31/1991 | EP0207087B1 Re-regulation circuit for automobile tachometer detection circuit |
| 07/25/1991 | WO1991010913A1 Coherent frequency burst detector apparatus and method |
| 07/24/1991 | EP0438176A1 Differential control system for four-wheel drive vehicle |
| 07/24/1991 | EP0437796A2 Unitary rotational speed sensor |
| 07/24/1991 | CN1053305A Electromechanically integrated rotating speed counting collection unit |
| 07/24/1991 | CN1013251B Parameter measuring device for motion of horizontally continuous casting blank |
| 07/16/1991 | US5032999 Motion sensor useful for power assisted steering systems |
| 07/16/1991 | US5032790 Passive magnetic speed sensor |
| 07/16/1991 | US5031988 Fiber optic gyro |
| 07/11/1991 | WO1991010144A1 A variable reluctance sensor with multiple tooth coupling |
| 07/11/1991 | WO1991010143A1 System for measuring velocity field of fluid flow utilizing a laser-doppler spectral image converter |
| 07/09/1991 | US5029481 Cross-correlation apparatus and methods |
| 07/03/1991 | EP0434993A1 Pulser ring for equipment for measuring rotational speed |
| 07/03/1991 | CN1013063B Optical part comprising optical fiber and light element or receiving element and method for making same |
| 07/02/1991 | USH939 Commutator pulse tachometer |
| 07/02/1991 | US5029286 Pulse shaper for inductive pickups having a voltage controlled differential voltage divider |
| 07/02/1991 | US5027654 Volumetric meter for liquids and/or gases |
| 06/27/1991 | DE4037104A1 Seal for universal joint - has slim spherical sealing surface which slides into thicker outer surface, to provide seal against dust, etc. AB DE4036616A The two shafts (1, 2) are joined by a universal joint and one shaft (2) is fitted with one spherical surface coupling (3) which moves inside the outer spherical surface of the second shaft. The second shaft has a slim spherical sealing surface (8) which slides inside the thicker, outer surface. The interdigitated spherical sealing surfaces provide a seal with limited ingress of dust etc. Sealing lips (8a, 9) seal the action of the shells. ADVANTAGE - Improved protection for universal joint, minimum risk of grit damage. AN 91194459 TI Pulse ring for revolution rate measurement - has slanted counter sections pressed out around periphery of ring to interact with sensor unit to determine speed and direction |
| 06/27/1991 | DE3942814A1 Relative rotary movement sensor using tangential magnetic field - produced by four magnets set at uniform spacing into rim of cylinder with like poles adjacent |
| 06/27/1991 | DE3942573A1 Contactless vehicle tyre rotary motion detection - measuring times between detection of magnetic markings in magnetisable belt by detector(s) |
| 06/27/1991 | DE3942547A1 Vehicle ABS or ASR physical value measuring - by using fibre=optic sensor subjected to magnetic field to use its Faraday effect |
| 06/26/1991 | EP0433733A1 Device for measuring the number of revolutions of the shaft of a permanent magnet electric motor |
| 06/26/1991 | EP0433594A1 Method for adaptable processing of rotational speed signal |
| 06/26/1991 | EP0433300A1 Speed detector |