| Patents for G01P 3 - Measuring linear or angular speed; Measuring differences of linear or angular speeds (19,542) |
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| 12/16/1980 | US4239962 Sunshield and light diffuser |
| 12/16/1980 | US4239128 Product dispensing measuring device |
| 12/16/1980 | CA1091775A1 Frequency responsive switching circuit |
| 12/11/1980 | WO1980002780A1 Digital velocity servo |
| 12/09/1980 | US4238791 Model aircraft with altitude change indicating means |
| 12/09/1980 | US4238767 Arrangement for measuring the mobility of image points of a video image |
| 12/02/1980 | US4237517 Motion monitoring apparatus |
| 12/02/1980 | US4237394 Frequency generator and miniature motor provided with the same |
| 12/02/1980 | US4237371 Rotary machine electronics supervisory and control apparatus |
| 11/26/1980 | EP0019530A1 Variable reluctance motion sensing system |
| 11/25/1980 | US4236115 Synchronization detecting and indicating system |
| 11/25/1980 | US4236094 Ignition transducer for vehicle engines |
| 11/25/1980 | US4235104 Normalized coefficient of lift indicator |
| 11/18/1980 | US4234923 Vehicle detection systems |
| 11/18/1980 | US4234139 Device for the detection of the state of rotation of a shaft, in particular for tape decks |
| 11/12/1980 | EP0018626A1 Anti-kickback power tool control |
| 11/12/1980 | EP0018603A1 Anti-kickback power tool control |
| 11/11/1980 | US4233599 Malfunction detector for speed sensors |
| 11/11/1980 | CA1089554A1 Vehicle road speed signal source |
| 11/04/1980 | US4231257 Slope sensor for a vehicle |
| 10/21/1980 | US4229701 Pulse order recognition circuit |
| 10/21/1980 | US4229695 Rotational speed transducer having greater low speed discrimination |
| 10/16/1980 | WO1980002135A1 Modified slowdown and braking of an elevator car |
| 10/14/1980 | US4228397 Electronic velocimeter having an oscillator coupled coil for measuring projectile muzzle velocity |
| 10/14/1980 | US4228396 Electronic tachometer and combined brushless motor commutation and tachometer system |
| 10/07/1980 | US4227150 System for indicating measured values |
| 10/07/1980 | US4227129 Apparatus for detecting the speed of an electric motor |
| 10/07/1980 | CA1087284A1 Engine speed and direction control |
| 10/07/1980 | CA1087275A1 Speed sensor mounting for a gas turbine |
| 09/30/1980 | US4225227 Multiple speed stroboscope device |
| 09/30/1980 | US4225006 Vehicle control speed sensing method and apparatus |
| 09/23/1980 | US4224570 Engine speed indicator |
| 09/23/1980 | US4224540 Displacement current sensor |
| 09/23/1980 | US4224515 High accuracy optical shaft encoder system |
| 09/23/1980 | US4224514 Optical encoder |
| 09/17/1980 | EP0015820A1 Device for measuring linear speeds without contact and without marking |
| 09/16/1980 | US4223297 Speed alarm system for a motor vehicle |
| 09/16/1980 | US4222272 Processor for an inertial measurement unit |
| 09/09/1980 | US4221985 Vehicle tachometer generator |
| 09/09/1980 | CA1085490A1 Power plant speed channel selection system |
| 09/09/1980 | CA1085484A1 Magnetoresistive displacement transducer |
| 08/26/1980 | US4219878 Speed measuring device |
| 08/26/1980 | US4218879 Overspeed protection device |
| 08/26/1980 | US4218878 Acceleration monitoring system for protecting gas turbine against damaging operation at resonant speeds |
| 08/19/1980 | US4218640 Tachometric measuring device for direct-current motors, and motor equipped with such a device |
| 08/19/1980 | US4218623 Device for detecting displacement of an optical image |
| 08/19/1980 | US4218615 Incremental digital shaft encoder |
| 08/12/1980 | US4217617 Turbine trip circuit |
| 08/12/1980 | US4217594 Method and apparatus for determining the velocity of a liquid stream of droplets |
| 08/12/1980 | US4217512 Apparatus for generating a pulse when a first member passes a second member using permanent magnets with different strengths |
| 08/12/1980 | CA1083688A1 Device for generating a pulse train |
| 08/05/1980 | US4216530 Navigation instrument for roadway vehicles |
| 08/05/1980 | US4216419 Tachometer system |
| 08/05/1980 | CA1082944A1 Method of and apparatus for the photo-electric determination of the location of at least one focal plane of an image |
| 07/29/1980 | US4215334 Aircraft excessive descent rate warning system |
| 07/29/1980 | US4215286 Variable reluctance electromagnetic pickup |
| 07/29/1980 | US4214483 Apparatus for measuring angular speed |
| 07/23/1980 | EP0013494A1 Measurement of velocity and/or distance |
| 07/22/1980 | US4214265 Method and device for supervising the speed of an object |
| 07/22/1980 | US4213343 Kinematic inertial sensor |
| 07/01/1980 | US4210789 Impact detecting switch |
| 07/01/1980 | US4210399 System for relative motion detection between wave transmitter-receiver and irregular reflecting surface |
| 07/01/1980 | CA1080503A1 Tachometer |
| 06/25/1980 | EP0012562A1 An internal combustion engine speed sensing apparatus |
| 06/24/1980 | US4209719 Tachogenerator for rotating machinery |
| 06/17/1980 | CA1079538A1 Electronic tachometer with variable bandwidth differentiator |
| 06/10/1980 | US4206637 Marine speedometer |
| 06/03/1980 | US4206365 Optical correlator |
| 05/28/1980 | EP0011099A1 Impulse generator for drives |
| 05/27/1980 | US4205261 Ultracentrifuge overspeed disk detection system |
| 05/20/1980 | US4204157 Periodic engine speed monitoring circit utilizing sampling circuitry |
| 05/20/1980 | CA1078016A1 Induction motor load monitor and control apparatus |
| 05/14/1980 | EP0010862A1 An LED light source device for a pulse encoder |
| 05/13/1980 | US4203061 Rotational speed indicating apparatus |
| 05/06/1980 | US4201468 Method and apparatus for Doppler frequency modulation of radiation |
| 05/06/1980 | US4201083 Velocity detecting apparatus |
| 05/06/1980 | CA1076841A1 Cycle to cycle engine roughness sensor |
| 05/06/1980 | CA1076833A1 Eddy-current device for measuring rotational speed |
| 04/29/1980 | US4200856 Differential clamp-on railway vehicle wheel detector |
| 04/29/1980 | US4200816 Wheel speed sensor including electro-magnetic pickup |
| 04/22/1980 | US4199800 Brushless DC tachometer |
| 04/22/1980 | US4199719 Instrument for measuring the speed in RPM of a rotating gear |
| 04/22/1980 | US4199254 Method of measuring the quantity of movement of an object |
| 04/22/1980 | US4198933 Governor system for internal combustion engines |
| 04/22/1980 | CA1076234A1 Amplitude responsive speed-switch control |
| 04/17/1980 | WO1980000751A1 Microcomputer device for computing and displaying the speed of a passing vehicle |
| 04/16/1980 | EP0009663A1 Electronic tachometer circuit |
| 04/16/1980 | EP0009597A1 Detector for monitoring the steady motion of rotary objects |
| 04/15/1980 | US4197748 Distance-measuring apparatus |
| 04/08/1980 | US4197585 Vehicle speed measuring apparatus |
| 04/08/1980 | US4196629 Fiber optic machinery performance monitor |
| 04/02/1980 | EP0009452A2 Apparatus for measuring the velocity of a moving product by means of the correlation technique |
| 04/02/1980 | EP0009443A1 Digital comparator of the angular speed and motor control comprising such a device |
| 04/01/1980 | US4196390 Probe assembly with resiliently mounted sensor head |
| 04/01/1980 | US4195425 System for measuring position and/or velocity |
| 03/25/1980 | US4195291 Digital controlled rotation sensor |
| 03/18/1980 | US4193642 Skid control system |
| 03/11/1980 | US4192189 Rate sensor |
| 03/05/1980 | EP0008572A1 Device for measuring characteristical parameters of the speed of a handwriting |
| 03/04/1980 | US4191477 Process and apparatus for the separate evaluation of image contents in two coordinate directions of motion |