| Patents for G01H 9 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means (3,383) |
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| 10/14/1981 | EP0037668A1 Optical transducer means |
| 10/13/1981 | US4294513 Optical sensor system |
| 10/06/1981 | US4293188 Fiber optic small displacement sensor |
| 09/01/1981 | US4286468 Frustrated total internal reflection fiber-optic small-motion sensor for hydrophone use |
| 08/18/1981 | US4284324 Acousto-optical imagery system based on coherent holographic detection in real time |
| 08/11/1981 | US4283114 Fiber optic light valve |
| 07/28/1981 | US4281245 Fiber optical measurement apparatus |
| 07/14/1981 | US4278881 System to supervise operation of a bearing |
| 07/07/1981 | CA1104368A1 Device for measuring vibration amplitude |
| 06/30/1981 | US4275963 Method and apparatus for sensing ultrasonic energy |
| 06/23/1981 | US4275296 Stabilized fiber optical measuring apparatus |
| 06/09/1981 | US4272354 Electrodes for electrolytic processes |
| 06/09/1981 | US4271696 Method of determining change in subsurface structure due to application of fluid pressure to the earth |
| 06/02/1981 | US4270388 Method and apparatus employing zero order Raman-Nath diffraction information to visualize longitudinal character of an acoustic wave field |
| 05/26/1981 | CA1101706A1 Acousto-optical imagery system based on coherent holographic detection in real time |
| 04/29/1981 | EP0027540A2 Optical sensor and transducer array system |
| 04/29/1981 | EP0027530A2 Optical monitoring arrangement for critical rotation speeds of rotary devices |
| 03/11/1981 | EP0024831A1 Fiber optic transducer and method of manufacture therefor |
| 02/11/1981 | EP0023834A2 Fiber optic transducers |
| 02/03/1981 | US4248093 Holographic resolution of complex sound fields |
| 01/07/1981 | EP0021945A1 Monomode fibre-optic hydrophone functioning by the elasto-optic effect |
| 12/09/1980 | US4238856 Fiber-optic acoustic sensor |
| 11/25/1980 | US4235113 Optical fiber acoustical sensors |
| 10/01/1980 | EP0015944A1 Electrodes for electrolytic processes |
| 09/16/1980 | US4222394 System for processing a waveform for a larynx stroboscope |
| 09/03/1980 | EP0014705A1 Measurement of small movements. |
| 08/19/1980 | US4218614 Device for measuring vibration amplitude |
| 07/29/1980 | US4214485 Electro-mechanical transducer |
| 04/30/1980 | EP0010492A2 Liquid crystal acousto-optic cell and visualisation device comprising such a cell |
| 03/11/1980 | US4193130 Fiber optic hydrophone for use as an underwater electroacoustic standard |
| 02/12/1980 | US4188096 Acousto-optical transducer |
| 01/29/1980 | US4185503 Vibration detector |
| 01/23/1980 | EP0007312A1 Optical sensing apparatus. |
| 01/22/1980 | CA1070150A1 Interferometric technique for determining ultrasonic wave intensity |
| 12/25/1979 | US4180324 Method and apparatus for measuring deformation of a workpiece surface responsive to ultrasonic energy |
| 12/12/1979 | EP0005798A1 Stabilized fibre-optical measuring apparatus |
| 11/20/1979 | US4174634 Echographic device for the real-time display of internal discontinuities of a test object |
| 11/01/1979 | WO1979000842A1 Electrodes for electrolytic processes |
| 10/18/1979 | WO1979000841A1 Speckle interferometric measurement of small oscillatory movements |
| 10/03/1979 | EP0004387A1 Electrodes for electrolytic processes |
| 09/11/1979 | CA1062045A1 Pickup unit for balancing rotating bodies |
| 07/24/1979 | US4162397 Fiber optic acoustic sensor |
| 06/28/1979 | WO1979000377A1 Optical sensing apparatus and method |
| 05/15/1979 | US4155065 Optic scattering acoustic transducer |
| 04/03/1979 | CA1051700A1 Ultrasonic wave radiation pattern display system incorporating phase contrast means |
| 03/13/1979 | CA1050651A1 Apparatus for measuring the velocity of mechanical low frequency vibrations |
| 01/30/1979 | US4136568 Electro-optic space positioner |
| 01/02/1979 | US4132117 Ultrasonic energy receiver probe utilizing opto-electrical sensing |
| 12/12/1978 | US4129041 Method and apparatus for receiving ultrasonic waves by optical means |
| 11/14/1978 | US4125025 Instrument for measuring the amplitude of vibration of a vibrating object |
| 11/07/1978 | US4123944 Portable ultrasonic measurement system |
| 10/31/1978 | US4123167 Optical detecting system |
| 10/31/1978 | US4123166 Optical detector of remote movement including cyclic scanning of target |
| 10/24/1978 | US4121470 Opto-electric sensing means with predetermined directional characteristic for ultrasonic waves |
| 10/10/1978 | US4119173 Optical seismograph |
| 09/19/1978 | US4115753 Fiber optic acoustic array |
| 06/06/1978 | US4093382 Hybrid holographic non-destructive test system |
| 05/02/1978 | US4086808 Motion detection and measurement |
| 04/11/1978 | US4083255 Hydro-optic vibration detector |
| 03/28/1978 | US4081216 Ultrasonic transducer calibration |
| 03/28/1978 | US4080823 Vibration measurement |
| 01/31/1978 | US4071753 Transducer for converting acoustic energy directly into optical energy |
| 09/20/1977 | US4049644 Device for measuring tip deflection of rotating blades |
| 09/06/1977 | US4046477 Interferometric method and apparatus for sensing surface deformation of a workpiece subjected to acoustic energy |
| 06/14/1977 | US4028935 Method, appliance and installation for the optical determination of small displacements of points on the surface of a solid body |
| 05/31/1977 | US4026144 Apparatus for the generation of polychromatic ultrasonographs |
| 04/26/1977 | US4019818 Interferometric technique for determining ultrasonic wave intensity |
| 04/19/1977 | US4018531 Speckle pattern interferometer |
| 02/08/1977 | US4006627 High-speed ultrasonic echo-tomographic device |
| 02/01/1977 | US4006444 Acoustic imaging apparatus |
| 12/21/1976 | US3998092 Simple systems for light beam modulation by acoustic surface waves |
| 12/14/1976 | US3997717 Ultrasonic wave radiation pattern display system incorporating phase contrast means |
| 11/16/1976 | US3991606 Apparatus and method for converting mechanical wave energy to optical energy |
| 10/26/1976 | US3988671 Method and apparatus for colinear acousto-optic RF spectrum analysis |
| 10/19/1976 | US3987338 Pick-up unit for balancing rotating bodies |
| 09/28/1976 | US3983529 Detector for use in acoustic holography |
| 08/03/1976 | US3973259 Device for indicating changes in the position of an object |
| 07/13/1976 | US3969578 Visual display of ultrasonic radiation pattern |
| 06/15/1976 | US3964052 Acoustical imaging system |
| 06/01/1976 | US3961185 Fiber optic displacement transducer |
| 04/27/1976 | US3952583 Apparatus and method for the remote detection of vibrations of diffuse surfaces |
| 04/20/1976 | US3952150 Visualization of vibrations, deformations or level lines of a three-dimensional object |
| 01/20/1976 | US3934153 Electro-optic system with expanded power range |