| 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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| 12/02/2009 | CN101592578A Silicon cantilever sensor, preparation method and application thereof |
| 12/02/2009 | CN101592472A Single-grating interferometer for time resolution |
| 11/26/2009 | US20090289198 Systems and methods for acoustic sensing |
| 11/25/2009 | EP2122305A2 Phase based sensing |
| 11/19/2009 | WO2009140453A1 Vision system for scan planning of ultrasonic inspection |
| 11/19/2009 | CA2724493A1 Vision system for scan planning of ultrasonic inspection |
| 11/18/2009 | EP2118626A2 Detecting particulate contaminants in a fluid |
| 11/18/2009 | EP2117488A1 Coagulation system |
| 11/18/2009 | CN100561144C Distributed optical fiber vibration sensing method and apparatus thereof |
| 11/18/2009 | CN100561136C Optical fibre strain disk and its manufacture method |
| 11/17/2009 | CA2363685C Sensor array cable and fabrication method |
| 11/11/2009 | EP2115405A2 Ultrasonic pressure sensor and method of operating the same |
| 11/04/2009 | CN201340679Y Laser scanned type integrated vibration demonstration instrument |
| 10/28/2009 | CN101566497A Distribution-type fiber vibration sensor system based on phase detection and optical time domain reflection |
| 10/21/2009 | EP1922537B1 Method for determination of strain distribution in components |
| 10/15/2009 | WO2009125391A2 Earthquake detection and alarming apparatus |
| 10/15/2009 | WO2009008010A3 Method and apparatus for the simultaneous generation and detection of optical diffraction interference pattern on a detector |
| 10/14/2009 | CN201327411Y Optical scanning device for acceleration measurement of table surface of vibration table |
| 10/14/2009 | CN101556724A Safety management system of optical fiber perimeter and pattern recognition method thereof |
| 10/14/2009 | CN101556185A Double frequency shift laser doppler vibration measuring device |
| 10/14/2009 | CN101555990A Safety monitoring system of long-distance pipeline |
| 10/14/2009 | CN100549628C Optical circuit apparatus for detecting destabilization of complete optical fiber wind-field vibrating sensing network system |
| 10/08/2009 | DE102008017119A1 Vibrometer und Verfahren zur optischen Vermessung eines Objekts Vibrometer and method for optical measurement of an object |
| 10/07/2009 | EP2107352A2 Vibrometer and method for optically measuring an object |
| 10/07/2009 | CN101551266A Compound interference type distributed optical fiber vibration sensing system and sensing method thereof |
| 10/07/2009 | CN100547365C Wide-field full-optical fiber perturbation sensing system high sensitivity perturbation detecting light path device |
| 10/07/2009 | CN100547355C Single light source resonance sensor for excitation and vibration testing |
| 09/30/2009 | EP2104842A2 Photonic crystal structure sensor |
| 09/29/2009 | US7596470 Systems and methods of prognosticating damage for structural health monitoring |
| 09/24/2009 | WO2009053717A3 Sensor element |
| 09/23/2009 | CN101539631A Earthquake monitoring device |
| 09/23/2009 | CN101539454A Semiconductor laser self-mixing interference vibration meter |
| 09/15/2009 | US7590510 Systems and methods for identifying damage in a structure |
| 09/09/2009 | EP2097880A1 Fault-tolerant distributed fiber optic intrusion detection |
| 09/09/2009 | CN101526393A Method for measuring oscillation frequency and oscillation frequency measuring device |
| 09/01/2009 | US7584075 Systems and methods of generating diagnostic images for structural health monitoring |
| 09/01/2009 | US7583387 Seismic exploration |
| 08/20/2009 | WO2009102242A1 Device for improved response when measuring vibration frequency of a vibrating object |
| 08/19/2009 | CN101509806A Same light splitting ratio and self-balancing optical fiber hydrophone time division multiplexing array light path composition method |
| 08/19/2009 | CN101509805A Multipath paralleling data acquisition system based on on-site programmable gate array |
| 08/12/2009 | CN101504312A Optical-fiber acoustic sensor for sound detection |
| 08/12/2009 | CN101504311A Sensing head of optical fiber acoustic sensor |
| 08/12/2009 | CN101504310A Distributed optical fiber vibration sensing system |
| 08/12/2009 | CN100526819C Apparatus for measuring libration by optical fibre and measuring method |
| 07/29/2009 | EP2082200A2 Fiber optics sound detector |
| 07/21/2009 | CA2484320C Active coherence reduction for interferometer interrogation |
| 07/14/2009 | CA2627099C A method and system of using odd harmonics for a phase generated carrier modulated optical signal |
| 07/01/2009 | CN100507475C Static pressure self-compensation optical fibre grating sonic device |
| 07/01/2009 | CN100507474C Vibration measuring device based on micro opto-electromechanic system |
| 07/01/2009 | CN100507473C Single-end optical fiber ring reflection type vibration and sonic sensor |
| 06/30/2009 | US7554885 Polarization diversity for optical fiber applications |
| 06/23/2009 | US7551517 Seabed seismic station packaging |
| 06/18/2009 | WO2009044387A3 A multipoint laser doppler vibrometer |
| 05/28/2009 | WO2008003224A9 An optical fiber control system for safety early-warning |
| 05/27/2009 | CN201247049Y Measuring apparatus for testing dynamic strain, vibration and acceleration |
| 05/27/2009 | CN101441106A Four-freedom degree clamping device of laser vibration measurer |
| 05/27/2009 | CN101441105A Optical fiber vibration sensor |
| 05/27/2009 | CN101441104A Electromagnetic damping optical fiber vibration sensor |
| 05/27/2009 | CN101441103A Optical fiber vibration sensor |
| 05/27/2009 | CN100491937C Improvements in and relating to accelerometers |
| 05/26/2009 | US7539083 Remote voice detection system |
| 05/20/2009 | EP2060933A2 Non-uniform Sampling to Extend Dynamic Range of Interferometric Sensors |
| 05/20/2009 | CN100489470C Method and device for measuring angular oscillation through laser interference |
| 05/06/2009 | CN201233271Y Optical fiber voice acquisition machine |
| 05/06/2009 | CN101424567A Oscillation real time monitoring device |
| 04/30/2009 | WO2009053717A2 Sensor element |
| 04/29/2009 | EP2053364A1 Adaptive Mixing for High Slew Rates |
| 04/29/2009 | EP1811901B1 Intravascular ultrasound imaging device |
| 04/22/2009 | EP2050411A1 Light irradiation apparatus |
| 04/22/2009 | CN201225895Y Sensor based on asymmetrical distribution feedback technology |
| 04/22/2009 | CN101416032A Fibre optic sensor package |
| 04/22/2009 | CN101413627A Optical fiber safe early warning polarization control system |
| 04/22/2009 | CN100480647C Method and device for detection of vibrations on a rotating vane of a turbine |
| 04/15/2009 | EP2047242A1 Fiber laser for ultrasonic laser testing |
| 04/15/2009 | CN101408456A Resonance measuring chucking appliance of hard disk drive rack |
| 04/09/2009 | WO2009044387A2 A multipoint laser doppler vibrometer |
| 04/09/2009 | WO2009020308A3 Apparatus for measuring and displaying a factor, method for measuring and displaying a factor, a program for measuring and displaying a factor being configured to cause a computer run a method for measuring and displaying a factor, and sound scanner |
| 04/09/2009 | US20090091764 Low cost fiber optic velocity sensor for sonar applications |
| 04/09/2009 | DE102006013345B4 Optisches Mikrofon ohne Membran Optical microphone without membrane |
| 04/08/2009 | CN101403473A Optical fiber security early-warning phase control system |
| 04/02/2009 | US20090084186 Sensor arrangement |
| 04/01/2009 | EP2041534A2 Ultrasonic probe and method for the optical detection of ultrasonic waves |
| 04/01/2009 | EP1550188B1 Sensor |
| 04/01/2009 | CN101397096A Paper carrying apparatus and image forming apparatus having the same |
| 03/25/2009 | CN201212819Y Adaptive signal processing recognition module for distributed optical fiber disturbing sensing system |
| 03/25/2009 | CN101393269A Method for monitoring geology by utilizing communication optical cable |
| 03/25/2009 | CN101393268A Earthquake early-warning system based on communication optical cable |
| 03/25/2009 | CN100472191C Optical hydrophone for a shock-wave field with long service life |
| 03/24/2009 | CA2465299C Optical displacement sensor element |
| 03/18/2009 | CN101387546A Space sailboard bend and torsion low frequency mode detecting method and apparatus based on vision |
| 03/17/2009 | US7505151 Arrangement for the optical distance determination of a reflecting surface |
| 03/11/2009 | CN100468032C Time domain demodulating method for vibration measuring laser inter ferometer Doppler signal |
| 03/10/2009 | US7500953 High contrast optoacoustic imaging using nanoparticles |
| 03/05/2009 | WO2009028701A2 Acoustic-wave sensor, acoustic-wave sensor array, and ultrasonic imaging apparatus |
| 03/05/2009 | WO2008149059A4 Seismic cable structure |
| 03/05/2009 | US20090059727 Systems and methods for minimally-invasive optical-acoustic imaging |
| 03/04/2009 | CN201203508Y High-sensitivity temperature self-compensation type optical fiber grating acceleration sensing device |
| 02/18/2009 | CN101368896A Method and apparatus for simultaneously extracting material complex Young's modulus and complex shearing modulus |
| 02/17/2009 | CA2323042C Apparatus and method for protecting devices, especially fibre optic devices, in hostile environments |
| 02/12/2009 | WO2009020308A2 Apparatus for measuring and displaying a factor, method for measuring and displaying a factor, a program for measuring and displaying a factor being configured to cause a computer run a method for measuring and displaying a factor, and sound scanner |