| 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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| 11/21/2001 | EP1155293A1 Method for producing time marks at any points on moving components |
| 11/15/2001 | US20010039836 Ultrasonic probe and ultrasonic diagnosis apparatus using the same |
| 11/14/2001 | EP1154269A2 Ultrasonic probe, ultrasonic receiver and ultrasonic diagnostic apparatus |
| 11/14/2001 | CN1321889A Ultrasonic probe, ultrasonic receiving device and diagnosing device |
| 11/14/2001 | CN1321888A Ultrasonic probe and ultrasonic diagnosing device using same |
| 11/14/2001 | CN1321887A Dynamic change detecting method and apparatus, and ultrasonic diagnosing apparatus |
| 11/13/2001 | US6317506 Measuring the characteristics of oscillating motion |
| 11/13/2001 | US6317237 Voice monitoring system using laser beam |
| 11/13/2001 | US6317213 Unbalanced fiber optic Michelson interferometer as an optical pick-off |
| 11/08/2001 | DE10106801A1 Schwingungsmessverfahren und Frequenzmessvorrichtung Vibration measurement methods and frequency measuring device |
| 11/07/2001 | EP1152240A2 Ultrasonic probe and ultrasonic diagnosis apparatus using the same |
| 11/07/2001 | EP1152230A2 Dynamic change detecting method, dynamic change detecting apparatus and ultrasonic diagnostic apparatus |
| 11/06/2001 | US6314056 Fiber optic sensor system and method |
| 11/06/2001 | US6311559 Vibration measurement method and apparatus |
| 11/06/2001 | US6311557 Magnetically tunable resonance frequency beam utilizing a stress-sensitive film |
| 10/31/2001 | CN1320221A Variable coupler fiberoptic sensor and sensing apparatus using the sensor |
| 10/25/2001 | US20010032514 Vibration measuring apparatus and method |
| 10/24/2001 | EP1148321A2 A method of investigating vibrations and an apparatus therefor |
| 10/23/2001 | US6305227 Sensing systems using quartz sensors and fiber optics |
| 10/23/2001 | CA2308203C Method of detecting atmospheric weather conditions in the atmosphere |
| 10/18/2001 | WO2001077694A1 Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor |
| 10/16/2001 | US6301968 Vibration measurement method and apparatus |
| 10/11/2001 | DE10111974A1 Vibration measuring apparatus for e.g. muffler of vehicle, has signal processor that produces oscillation information based on variation of modulation frequency of beat wave with respect to Doppler frequency |
| 10/04/2001 | WO2001073373A1 Method for vibration measurement and interferometer |
| 10/04/2001 | EP1139072A1 Small optical microphone/sensor |
| 10/04/2001 | EP1139071A1 Thin optical microphone sensor with reflecting wedges |
| 10/04/2001 | EP1137915A2 System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources |
| 10/03/2001 | CN1315653A Organic scotopic mechanical vibration/acceleration sensing structure and its preparing method |
| 10/03/2001 | CN1072354C Beam direction microdrift detecting system |
| 09/26/2001 | EP0769136B1 Ultrasonic/vibration detection using polarization beating in a microchip laser |
| 09/26/2001 | CN1314586A Optic fibre resonant method measuring micro vibration |
| 09/13/2001 | WO2001067806A1 Folded sagnac sensor array |
| 09/11/2001 | US6289143 Fiber optic acoustic emission sensor |
| 09/11/2001 | US6288975 Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| 09/11/2001 | CA2240572C System for multiplexed high resolution measurement of frequency variations in multimode fiber laser acoustic sensors |
| 09/11/2001 | CA2097048C Multiple segment fiber optic hydrophone |
| 09/07/2001 | WO2001065217A1 Acoustic emission detection using a fibre-optic mode-coupling element |
| 09/07/2001 | WO2001065203A1 Detecting internal structures using light generated acoustic imaging |
| 09/04/2001 | US6285806 Coherent reflectometric fiber Bragg grating sensor array |
| 09/04/2001 | US6285514 Lens for angularly overlapping a central portion of an optical beam with an outer portion of the beam |
| 08/28/2001 | US6282334 Large scale WDM/TDM sensor array employing erbium-doped fiber amplifiers |
| 08/23/2001 | US20010016799 Oscillation measuring method and frequency measuring apparatus |
| 08/23/2001 | US20010015809 Homodyne interferometer using photorefractive polymer composite and method of sensing material |
| 08/21/2001 | US6278823 Sensor array cable and fabrication method |
| 08/21/2001 | US6278657 Folded sagnac sensor array |
| 08/16/2001 | US20010013934 Seismic sensor with interferometric sensing apparatus |
| 08/14/2001 | US6274863 Selective aperture arrays for seismic monitoring |
| 08/09/2001 | WO2001057482A1 Measuring device for ultrasound sources |
| 08/08/2001 | EP0832418B1 Sensitive and fast response optical detection of transient motion from a scattering surface by two-wave mixing |
| 07/31/2001 | US6269198 Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| 07/26/2001 | US20010009111 Method and apparatus for two-dimensional vibration analysis |
| 07/25/2001 | EP1118840A1 Echo-cancelling optical microphone |
| 07/24/2001 | CA2198276C Optical vibration sensor |
| 07/18/2001 | EP1116056A1 Variable coupler fiberoptic sensor and sensing apparatus using the sensor |
| 07/18/2001 | CN1068677C 原子力显微镜 AFM |
| 07/05/2001 | DE19961830A1 Verfahren zur Erzeugung von Zeitmarken beliebiger Punkte beweglicher Bauteile und optische Triggereinrichtung zur Durchführung des Verfahrens A method for generating time stamps of any points of movable components and optical triggering device for performing the method |
| 06/28/2001 | WO2001046654A1 Method for producing time marks at any points on moving components |
| 06/27/2001 | EP1110066A1 Seismic optical acoustic recursive sensor system |
| 06/27/2001 | EP1110065A1 Seismic sensing and acoustic logging systems using optical fiber, transducers and sensors |
| 06/12/2001 | US6246638 Fiber-optic vibration sensor based on frequency modulation of light-excited oscillators |
| 06/07/2001 | WO2001040742A2 Fiber optic seismic sensor |
| 06/05/2001 | US6240783 Bridge monitoring system |
| 05/17/2001 | WO2001035062A2 Optical method for the transmission of signals from remote arrays of electrical sensors |
| 05/17/2001 | CA2387944A1 Optical method for the transmission of signals from remote arrays of electrical sensors |
| 05/09/2001 | EP1097076A1 Method and apparatus for detecting defective track wheels |
| 05/08/2001 | US6229762 Acoustic sensor for a point in space |
| 05/03/2001 | WO2001031288A1 Optical fiber infrasound sensor |
| 05/02/2001 | EP1096273A2 Accoustic sensing systems for downhole seismic applications utilizing an array of fiber optic sensors |
| 05/02/2001 | EP1096272A2 Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| 05/02/2001 | EP1096271A2 Accoustic sensing system for downhole seismic applications utilizing an array of fibre optic sensors |
| 05/01/2001 | US6223602 Electromagnetic vibration sensor |
| 04/29/2001 | CA2320453A1 Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| 04/29/2001 | CA2320394A1 Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| 04/25/2001 | EP1093569A1 Dynamic holographic velocimeter for measuring vibrations |
| 04/12/2001 | DE19944452A1 Positionsdetektor mit akustischen Oberflächenwellen A position detector surface acoustic wave |
| 04/03/2001 | US6209396 Method and apparatus for two-dimensional vibration analysis |
| 03/27/2001 | US6208590 Sagnac interferometric sensor array for acoustic sensing and method of detecting acoustic signals |
| 03/22/2001 | WO2001020781A1 Device and method for high-sensitivity resolution detection |
| 03/22/2001 | WO2001020318A1 An optical interferometer sensor array |
| 03/21/2001 | EP1084590A1 Folded sagnac sensor array |
| 03/21/2001 | CN1288526A fiber optic sensor system and method |
| 03/15/2001 | WO2001018552A1 Volume accelerometer |
| 03/01/2001 | WO2001014825A1 Method and apparatus for remote measurement of vibration and properties of objects |
| 03/01/2001 | CA2383350A1 Method and apparatus for remote measurement of vibration and properties of objects |
| 02/22/2001 | WO2001013078A1 Improvements in measurement of vibrations |
| 02/20/2001 | CA2199087C Fiber optic hydrophone having rigid mandrel |
| 02/08/2001 | WO2001009577A1 Method and device for recording an image of an object surface using focussed radiation |
| 02/01/2001 | WO2001007935A1 Selective aperture arrays for seismic monitoring |
| 01/30/2001 | US6181431 System and method for laser ultrasonic bond integrity evaluation |
| 01/17/2001 | EP1068492A1 Fiber optic acoustic sensor array based on sagnac interferometer |
| 01/17/2001 | EP0910863A4 Amplified sensor arrays |
| 01/16/2001 | US6175411 Apparatus and method for measuring and imaging traveling waves |
| 01/10/2001 | CN1279878A Method of detecting atmospheric weather conditions |
| 01/04/2001 | WO2001001090A1 Fabry perot single mode fibre interferometer |
| 12/27/2000 | CN2412211Y Electric machine viberating noise detector |
| 12/13/2000 | EP1058842A1 Method and device for the quality control of a work piece |
| 12/12/2000 | US6160762 Optical sensor |
| 12/12/2000 | US6160761 Removable air mandrel |
| 12/12/2000 | US6158286 Process and devices for the determination of the vibrations of the rotor of a rotary machine |
| 11/30/2000 | WO2000072025A1 Bragg grating device for measuring an acceleration |