| 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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| 06/26/2013 | CN102331290B Method and apparatus for solving zero point problem of non-contact vibration measurement with utilization of phase control |
| 06/19/2013 | CN203011519U Fiber cable induction identification and positioning system |
| 06/19/2013 | CN103163527A Laser monitoring device based on charge-coupled device (CCD) auxiliary positioning and double-optical wedge light beam regulation and monitoring method by using same |
| 06/19/2013 | CN103162878A Optical fiber pressure sensor and preparation method thereof |
| 06/19/2013 | CN103162807A System for testing compound vibration of machine tool |
| 06/19/2013 | CN103162806A Micro-vibration fiber optic sensor |
| 06/13/2013 | US20130151203 Detection of Moving Objects |
| 06/12/2013 | CN103154683A Optical microphone |
| 06/12/2013 | CN103154682A Optical-fiber-compatible acoustic sensor |
| 06/12/2013 | CN103149639A Two-way Mach-Zehnder interferometer system and polarization state adjusting method thereof |
| 06/12/2013 | CN103148929A Optical fiber vibration measuring system with low loss and subnano-resolution |
| 06/12/2013 | CN103148928A Generator stator end winding degradation diagnosis method based on correlation analysis of electrical quantities and mechanical quantities |
| 06/12/2013 | CN102519573B Remote non-contact vibration measuring device |
| 06/12/2013 | CN102322937B Impact wave travel time parameter measuring method and device |
| 06/06/2013 | WO2013079960A1 Method and system for optical evaluation, and optical detector |
| 06/06/2013 | US20130142519 Optical microphone |
| 06/06/2013 | US20130139600 Gunfire Detection |
| 06/05/2013 | CN202974421U Composite chamber fiber grating laser hydrophone |
| 06/05/2013 | CN202970116U Vibration sensing optical fiber erecting device |
| 06/05/2013 | CN103135190A High sensitivity vibration detection optical cable |
| 06/05/2013 | CN103134581A Push-pull type fiber laser vector hydrophone |
| 06/05/2013 | CN103134580A Signal processing method for distributed optical fiber vibration measurement system based on wavelet analysis |
| 06/05/2013 | CN103134431A Vertical vibration displacement sensor based on Michalson fiber-optical interferometer |
| 06/05/2013 | CN102062787B Selective mode self-excitation method and device of MEM (Micro-Electrical Mechanical) sensor |
| 05/23/2013 | WO2013072256A1 Converter arrangement for capturing sound waves and/or pressure waves by means of a fiber-optic sensor |
| 05/21/2013 | US8447585 System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources |
| 05/16/2013 | DE102011086343A1 Wandleranordnung zur Erfassung von Schall- und/oder Druckwellen mit einem faseroptischen Sensor Transducer assembly for detecting sound and / or pressure waves with a fiber-optical sensor |
| 05/15/2013 | CN202938904U Monolithic-pouring local-oil-charge all fiber line array |
| 05/15/2013 | CN102103011B High-precision laser interference hydrophone |
| 05/08/2013 | EP2589924A1 Device and method for interferometric measuring of an object |
| 05/08/2013 | DE102006033229B4 Ultraschallsonde und Verfahren zur optischen Detektion von Ultraschallwellen Ultrasonic probe and method for optical detection of ultrasound waves |
| 05/08/2013 | CN103090961A Disturbance source positioning method of distributed type optical fiber sensing system |
| 05/08/2013 | CN103090960A System and method for obtaining and de-noising vibratory data |
| 05/02/2013 | US20130104661 Method and apparatus for range resolved laser doppler vibrometry |
| 05/01/2013 | EP2587231A2 Method and apparatus for range resolved laser doppler vibrometry |
| 05/01/2013 | CN202916001U System for monitoring oscillation of transmission lines based on pressure-sensitive sensor |
| 05/01/2013 | CN103076082A Single mode-multimode-single mode fiber intermode interference-based vibration and stress sensing device |
| 05/01/2013 | CN103076081A Measuring system for fan vibration of pulsed gas laser |
| 05/01/2013 | CN103076028A Wavelet de-noising method of optical-phase vibration |
| 04/25/2013 | WO2012139592A3 Wind turbine including optical sensor system |
| 04/25/2013 | WO2012109502A3 Vibration sensor |
| 04/24/2013 | EP2583084A2 Precision measurements in a fiber optic distributed sensor system |
| 04/24/2013 | CN103069258A Apparatus for monitoring a rotating machine part |
| 04/24/2013 | CN103065407A Optical fiber intelligent monitoring system and monitoring method based on phase signal carrier technology |
| 04/24/2013 | CN103063291A Optical fiber micro-vibration sensor |
| 04/24/2013 | CN103063290A Novel real-time data acquisition and signal process device used for optical fiber vibration measurement system and implementation method thereof |
| 04/24/2013 | CN103063289A Draught fan impeller disturbance measurement system in pulse gas laser device cavity |
| 04/24/2013 | CN102393987B Adaptive continuous-wave wide-dynamic-range signal processing method for wide-field full-optical fiber sensing system |
| 04/17/2013 | CN202885964U Testing apparatus for oscillation of numerical control machine tool servo motor |
| 04/17/2013 | CN103048103A Non-contact modal test system and method |
| 04/17/2013 | CN103048039A Frequency-response calibration device of distributed type wide-spectrum optical-fiber-interference vibration sensing system |
| 04/17/2013 | CN103048038A Vibration detecting device of non-contact type fluid component |
| 04/17/2013 | CN102322936B Impact wave travel time parameter measuring method for single-path optical fiber and device |
| 04/11/2013 | WO2013051196A1 Distributed optical fiber sound wave detection device |
| 04/11/2013 | CA2850910A1 Distributed optical fiber sound wave detection device |
| 04/10/2013 | CN103033842A Time division multiplexing array type fiber bragg grating seismic wave real-time monitoring system |
| 04/10/2013 | CN103033254A Wave multiplexing mode voice monitoring system |
| 04/10/2013 | CN103033253A Non-contact vibration detecting method of tower crane structure |
| 04/09/2013 | CA2575951C Method and apparatus for studying surface vibrations by moving speckle interferometer |
| 04/04/2013 | WO2012084997A3 Detecting the direction of acoustic signals with a fiber optical distributed acoustic sensing (das) assembly |
| 04/04/2013 | US20130081472 Long Distance Optical Fiber Sensing System and Method |
| 04/03/2013 | CN202853737U Impact calibration device of underground distributed fiber vibration monitoring system |
| 04/03/2013 | CN103017888A Landmine inherent frequency acousto-optic measurement device and method |
| 04/03/2013 | CN103017887A Optical fiber vibration sensing system and detection method thereof |
| 04/03/2013 | CN103017886A Polarization-maintaining fiber grating two-dimensional vector vibration sensor |
| 04/03/2013 | CN103017885A Systems and methods for mode shape identification |
| 03/28/2013 | WO2013041856A1 Acousto- electromagnetic investigation of physical properties of an object |
| 03/28/2013 | WO2012095640A3 Fibre optic distributed sensing |
| 03/27/2013 | CN103003703A Fibre optical accelerometer |
| 03/27/2013 | CN102165293B Method and apparatus for monitoring blade vibration with a fiber optic ribbon probe |
| 03/27/2013 | CN102165292B Method and apparatus for monitoring blade vibration with an imaging fiber optic ribbon probe |
| 03/20/2013 | EP2569644A1 Fibre optical accelerometer |
| 03/20/2013 | CN202814540U Fiber grating vibration sensor |
| 03/20/2013 | CN102980649A Negative pressure arraying device for detecting array |
| 03/20/2013 | CN102980648A Real-time data acquisition and signal preprocessing equipment and method for optical fiber vibration measurement system |
| 03/20/2013 | CN102980647A Recognition and location test method for noise sources |
| 03/20/2013 | CN102980600A Optical system based on double-pulse digital speckle transient measurement |
| 03/20/2013 | CN102980520A Double-pulse digital speckle transient measuring device and method |
| 03/14/2013 | WO2012114077A3 Distributed acoustic sensing |
| 03/13/2013 | CN202795685U Operation security prewarning system with double hosts and distributed optical fibers for prestress pipelines |
| 03/13/2013 | CN202795684U Operation security early-warning system of single-host distributed optical fiber prestressed pipeline |
| 03/13/2013 | CN202793576U Torsional vibration measurement device of wind turbine transmission system |
| 03/13/2013 | CN102967358A Distribution type optical fiber vibration sensor for time division multiplexing |
| 03/13/2013 | CN102221397B LSAW positioning measuring system based on Sagnac interferometer |
| 03/12/2013 | US8393220 Optical fiber type vibration meter |
| 03/06/2013 | CN202770526U Mechanical vibration amplitude curve measurement system |
| 03/06/2013 | CN101968550B Rock stratum recognizing device and method based on array optical fiber sensor |
| 03/06/2013 | CN101952695B Device for improved response when measuring vibration frequency of a vibrating object |
| 03/05/2013 | US8391652 Systems and methods for minimally-invasive optical-acoustic imaging |
| 02/28/2013 | WO2013027068A2 A fibre optic distributed sensor |
| 02/28/2013 | CA2845045A1 A fibre optic distributed sensor |
| 02/27/2013 | CN102944298A End sensitive fiber bragg grating high-intensity focused ultrasound sensor and system |
| 02/27/2013 | CN102175303B Three-dimensional vibration interferometry device based on spherical cooperative target |
| 02/21/2013 | WO2013023425A1 Polarization sensitive distributed optical frequency domain reflection turbulence sensing device and demodulation method |
| 02/20/2013 | EP2560021A1 Radar system and method for providing information on movements of object's surface |
| 02/20/2013 | CN102937416A Fully-distributed optical fiber strain and vibration sensing method and device based on cross-polarization state changeover |
| 02/14/2013 | WO2012109197A3 Method for monitoring the condition of a vibration sensor |
| 02/13/2013 | CN102929132A Vibration non-contact active control device and method based on novel multi-chip combinational driver structure |
| 02/13/2013 | CN102928065A Non-contact type mechanical vibration frequency measuring method |
| 02/13/2013 | CN102928064A Non-contacted method for measuring vibration amplitude of machinery |