| Patents for G01H 1 - Measuring vibrations in solids by using direct conduction to the detector (4,000) |
|---|
| 07/14/1981 | US4278881 System to supervise operation of a bearing |
| 07/07/1981 | US4276782 Torsional vibration monitoring apparatus for rotating shaft system |
| 06/16/1981 | US4272992 Torsional vibration monitoring method for rotating shaft system |
| 05/26/1981 | US4269065 Ultrasonic detector apparatus |
| 05/19/1981 | US4267734 Torsional vibration monitoring apparatus for rotating shaft system |
| 05/19/1981 | US4267733 Torsional vibration monitoring method and an apparatus for performing the same |
| 04/30/1981 | WO1981001168A1 Monitoring equipment for drilling operations |
| 04/21/1981 | US4262538 Method of detecting rubbing between rotating body and stationary body |
| 03/17/1981 | US4255978 Torsional vibration monitoring apparatus for a rotating shaft system |
| 03/17/1981 | US4255965 Apparatus for detecting oscillations occurring during engine knock |
| 02/24/1981 | CA1096481A1 Method and system for corona source location by acoustic signal detection |
| 01/21/1981 | EP0022671A1 Method and apparatus for determining the mass of an impacting object |
| 01/06/1981 | CA1093199A1 Methods and apparatus for the generation and transmission of seismic signals |
| 12/16/1980 | CA1091469A1 Vibration sensing device |
| 12/09/1980 | US4238725 Apparatus for checking the direction of polarization of shear-wave ultrasonic transducers |
| 12/02/1980 | US4237454 System for monitoring bearings and other rotating equipment |
| 11/26/1980 | EP0019398A1 Monitoring apparatus for rotating machinery |
| 11/18/1980 | US4233836 Knocking detection system for internal combustion engine |
| 11/12/1980 | EP0018853A2 Method of and system for the detection of object impact |
| 11/04/1980 | US4231258 Method and apparatus for detecting foreign matters in gas sealed electric apparatus |
| 09/17/1980 | EP0015868A1 A system for monitoring vibration of an engine |
| 09/16/1980 | US4223319 Passive multielement shock recorder |
| 07/22/1980 | US4213346 Method and apparatus for testing cyclically operated mechanical members for defects |
| 07/15/1980 | US4213114 Vibration monitoring system for an aircraft engine |
| 06/24/1980 | US4209779 Method of monitoring equipment and system for carrying out the method |
| 06/10/1980 | CA1079390A1 Detection of incipient damage in rolling contact bearings |
| 06/03/1980 | USRE30298 Impact sensing detector |
| 05/28/1980 | EP0011101A1 Method and apparatus for providing electrical run out elimination in vibration measurement on rotating or vibrating elements |
| 05/06/1980 | US4201536 Vibration responsive mechanism |
| 04/01/1980 | US4195528 Fault detection device |
| 03/25/1980 | CA1074434A1 Piezo electric transducer for measuring instantaneous vibration velocity |
| 03/04/1980 | US4191869 Vibration detector device |
| 02/07/1980 | WO1980000187A1 Device for measuring vibrations |
| 01/29/1980 | US4185503 Vibration detector |
| 01/22/1980 | US4185180 Vibration sensing device |
| 01/22/1980 | US4184372 Particle detection system and apparatus therefor |
| 01/15/1980 | CA1070008A1 Method of and apparatus for monitoring slag depth in refining crucible |
| 01/09/1980 | EP0006426A1 Vibrations-measuring device |
| 01/09/1980 | EP0006315A1 Method and system for detecting plate clashing in disc refiners |
| 01/01/1980 | US4181024 Helicopter rotor system related vibration amplitude detecting system |
| 12/11/1979 | CA1067716A1 Engine knock signal generating apparatus with noise channel inhibiting feedback |
| 10/23/1979 | US4171645 Displacement probes with self-contained exciting medium |
| 10/23/1979 | CA1065048A1 Vibration detection probe holder |
| 09/11/1979 | CA1062045A1 Pickup unit for balancing rotating bodies |
| 09/04/1979 | US4166377 Apparatus for measuring the damping coefficient of torsional-vibration dampers |
| 05/08/1979 | US4153388 Method and apparatus for monitoring the state of oscillation of the blades of a rotor |
| 04/10/1979 | US4148222 Apparatus and method for measuring torsional vibration |
| 04/03/1979 | US4147228 Methods and apparatus for the generation and transmission of seismic signals |
| 02/20/1979 | CA1049132A1 Excitation and spectral calibration of acoustic emission systems |
| 02/06/1979 | US4137780 Apparatus for monitoring phase currents and torsional vibrations of a turbine-generator |
| 01/16/1979 | US4135244 Method and apparatus for programming and reducing runout in rotating shaft vibration signal detection |
| 01/16/1979 | US4134303 Method and circuit for providing electrical runout reduction in rotating shaft vibration detection systems |
| 10/24/1978 | US4122445 Breakage detector having a conductive bent metallic leaf spring therein |
| 10/17/1978 | US4121272 Torsional oscillation alarm system |
| 09/05/1978 | US4111035 Engine knock signal generating apparatus with noise channel inhibiting feedback |
| 08/08/1978 | US4106065 Drive circuitry for controlling movable video head |
| 07/04/1978 | US4098128 Method of and apparatus for monitoring slag thickness in refining crucible |
| 06/13/1978 | US4095173 Method and system for corona source location by acoustic signal detection |
| 05/09/1978 | US4089055 Electronic monitoring apparatus |
| 05/09/1978 | US4088899 Method for controlling an automatic machine tool |
| 05/02/1978 | US4086808 Motion detection and measurement |
| 03/28/1978 | US4080823 Vibration measurement |
| 02/21/1978 | US4075601 Combined pipeline marker and test unit |
| 12/27/1977 | US4064735 Excitation and spectral calibration of acoustic emission systems |
| 12/27/1977 | US4064704 Vibration analyzing apparatus |
| 12/20/1977 | US4063450 Voltage controlled electronic filter |
| 11/08/1977 | US4057709 Particle detector |
| 09/20/1977 | US4049644 Device for measuring tip deflection of rotating blades |
| 08/16/1977 | US4041775 Vibrometer |
| 08/09/1977 | US4040290 Vibration amplitude transducer |
| 08/02/1977 | US4038866 Electronic probe for sensing and reproducing the sound of mechanical movement |
| 06/07/1977 | US4027539 Apparatus for, and method of, measuring dynamic forces |
| 05/10/1977 | US4023044 Automatic machine tool including a monitoring system |
| 05/03/1977 | US4021773 Acoustical pick-up for reception of signals from a drill pipe |
| 05/03/1977 | US4021688 Pickup for measuring vibration parameters of operating machinery parts |
| 04/19/1977 | US4018087 Method and apparatus for testing the uniformity of a rotary body |
| 04/19/1977 | US4018083 Vibration detection probe holder |
| 04/12/1977 | US4016752 Vibration probe for detecting the radial displacement of rotating shaft |
| 04/12/1977 | US4016746 System and detector for measuring by means of sound the liter weight of the material in satellite coolers for rotative ovens |
| 03/08/1977 | US4011472 Acoustic emission transducer |
| 03/08/1977 | US4010637 Machine vibration monitor and method |
| 02/08/1977 | US4006625 Amplitude sorting of oscillatory burst signals by sampling |
| 01/25/1977 | US4004464 Method and transducer and apparatus for selectively measuring oscillation components from an oscillation spectrum |
| 01/25/1977 | US4004450 Device for measuring impact pulses |
| 01/04/1977 | US4001773 Acoustic telemetry system for oil wells utilizing self generated noise |
| 12/21/1976 | US3998092 Simple systems for light beam modulation by acoustic surface waves |
| 12/07/1976 | US3995501 Shear and compression wave testing and measuring device |
| 11/30/1976 | US3994155 Devise for the measurement of mechanical vibrations |
| 10/19/1976 | US3987338 Pick-up unit for balancing rotating bodies |
| 10/12/1976 | US3985024 Acoustic emission process and system for improved flaw source location |
| 09/07/1976 | US3979739 Apparatus for the detection of vibration in rotating machinery |
| 09/07/1976 | US3979670 Apparatus for detecting and measuring peak-to-peak values in electrical signals |
| 07/27/1976 | US3971249 Mechanical testing system |
| 07/06/1976 | US3968472 Vibration detection and analysis system employing an intrinsic safety barrier |
| 07/06/1976 | US3968382 Protective circuit for field effect transistor amplifier |
| 03/30/1976 | US3946600 Acoustic emission method for detection and monitoring of corrosion |
| 03/23/1976 | US3946256 System for generating or sensing transverse elastic bulk waves in solids |
| 03/02/1976 | US3942052 Torsion vibrator of a supersonic viscosimeter |
| 02/17/1976 | US3938394 Combination balance analyzer and vibration spectrum analyzer |
| 01/27/1976 | US3934459 Torque monitoring system for rotating shaft |