| 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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| 02/13/2013 | CN102928063A Distributive optical fiber vibration sensing system based on wave division multiplex technology |
| 02/13/2013 | CN102095487B Optical path structure of time-division-multiplexing optical fiber hydrophone array and modulation and demodulation method thereof |
| 02/07/2013 | US20130033969 Transducer and system of arrangement for a panel array |
| 02/07/2013 | US20130031982 Photoacoustic apparatus and method for controlling the same |
| 02/06/2013 | CN202720047U Suspension-type fiber bragg grating vibration sensor |
| 02/06/2013 | CN202720046U Three-component fiber bragg grating vibration sensor |
| 02/06/2013 | CN202720045U Golf club vibration frequency measuring device |
| 02/06/2013 | CN102914356A Light intensity demodulating system and method based on non-uniform spectrum |
| 02/06/2013 | CN102374895B Large dynamic optical fiber vibration sensor |
| 01/31/2013 | US20130025375 Fiber optic pipeline monitoring systems and methods of using the same |
| 01/30/2013 | CN202710806U Novel vibration cable |
| 01/30/2013 | CN102902220A Real-time acquisition and processing device of laser doppler vibration meter signals |
| 01/24/2013 | DE102011108181A1 Method for spatially resolved measurement of magnetization of magnetic structure for use in e.g. magnetic data storage, involves measuring polarization rotation of fluorescent light from residual range |
| 01/24/2013 | DE102011079670A1 Calibration device for measuring deflection of piezoelectric actuator of engine, has plunger that cooperates with end of actuator so that it is displaced with change in length of actuator along stroke in longitudinal direction |
| 01/23/2013 | EP2549247A1 Fbg oscillation detection system, device and oscillation detection method employing the system |
| 01/23/2013 | EP2547990A2 Optical-fiber-compatible acoustic sensor |
| 01/23/2013 | CN202693118U FBG (Fiber Bragg Grating) two-dimensional vibration sensor |
| 01/23/2013 | CN202693117U Bridge amplitude real-time monitoring device based on laser modulation |
| 01/23/2013 | CN102401691B All-fibre laser Doppler three-dimensional vibration meter |
| 01/17/2013 | WO2013007071A1 Sensor for probing geological disaster and monitoring and alarming device thereof |
| 01/16/2013 | EP2545349A1 Wind energy power plant equipped with an optical vibration sensor |
| 01/16/2013 | CN202676278U A sound pressure signal monitoring device of ocean background noise |
| 01/16/2013 | CN102879876A Sensing optical cable for monitoring cable |
| 01/16/2013 | CN102879082A Acoustic frequency detector and acoustic frequency detecting system with multi-mode coupler |
| 01/16/2013 | CN102879081A Data processing method in distributed optical fiber vibration system |
| 01/16/2013 | CN102879080A Sound field analysis method based on image recognition positioning and acoustic sensor array measurement |
| 01/10/2013 | WO2011115933A3 Optical-fiber-compatible acoustic sensor |
| 01/10/2013 | US20130008253 Fbg vibration detection system, apparatus and vibration detection method using the system |
| 01/09/2013 | CN202661160U Defense-area type optical fiber vibration sensing system |
| 01/09/2013 | CN102865914A Distributed optic fiber vibrating sensor |
| 01/09/2013 | CN101943600B Backscatter-based distributed fiber-optic vibration system |
| 01/03/2013 | US20130006624 Sound sources separation and monitoring using directional coherent electromagnetic waves |
| 01/03/2013 | US20130000409 Gyroscope sensors |
| 01/02/2013 | CN102854331A Optical-electro-mechanical vibration angular speed sensor |
| 01/02/2013 | CN102853897A Optical fiber micro-vibration mode recognition system and optical fiber micro-vibration mode recognition method on basis of digital signal processor (DSP) and field programmable gate array (FPGA) |
| 01/02/2013 | CN101729967B Acousto-optic conversion method and optical microphone based on multiple-mode interference |
| 01/02/2013 | CN101529242B Fiber laser for ultrasonic laser testing |
| 12/27/2012 | WO2012177547A1 Fiber optic cable with increased directional sensitivity |
| 12/27/2012 | WO2012176199A1 Method and system for identification of speech segments |
| 12/27/2012 | WO2012175954A1 Monitoring of conduits |
| 12/27/2012 | WO2012150079A3 Method and device for the optical non-contact oscillation measurement of an oscillating object |
| 12/27/2012 | CA2839764A1 Monitoring of conduits |
| 12/27/2012 | CA2839212A1 Fiber optic cable with increased directional sensitivity |
| 12/26/2012 | CN102840909A Optical frequency domain reflection-distributed vibration frequency sensing and locating device and demodulation method |
| 12/26/2012 | CN102840908A Vibration sensor of three-component fiber grating |
| 12/20/2012 | US20120322164 Nanowire array structures for sensing, solar cell and other applications |
| 12/20/2012 | US20120320383 Enclosed Laser-Ultrasonic Inspection System |
| 12/20/2012 | US20120318066 Photoacoustic measuring apparatus |
| 12/19/2012 | CN202614366U Novel high-precision heterodyne laser vibration meter |
| 12/19/2012 | CN102829855A Method and device for measuring minute amplitude vibration of laser focused measuring head |
| 12/19/2012 | CN102829854A Suspended type fiber grating vibration sensor |
| 12/19/2012 | CN101881652B Method for testing vibration mode of piezoelectric chip |
| 12/13/2012 | WO2012168679A1 Method and system for locating an accoustic source |
| 12/13/2012 | CA2838433A1 Method and system for locating an accoustic source |
| 12/12/2012 | CN102822645A Optic fibres and fibre optic sensing |
| 12/12/2012 | CN102818962A Online monitoring system of all-fiber grating power transformer |
| 12/12/2012 | CN102818621A Non-contact collecting probe |
| 12/12/2012 | CN102003970B Dynamic signal demodulation method for fiber laser sensor |
| 12/12/2012 | CN101988851B Counting device, physical quantity sensor, counting method and physical quantity measuring method |
| 12/06/2012 | WO2012163681A1 Optical sensor |
| 12/06/2012 | US20120309116 Substrate Analysis Using Surface Acoustic Wave Metrology |
| 12/05/2012 | CN102809663A Angular-rate sensing system by detecting Coriolis vibration by aid of non-contact optical fiber combinations |
| 12/05/2012 | CN102809422A Wind turbine driving system torsional vibration measurement method and device |
| 12/05/2012 | CN102809421A Multi-point localizable distribution-type optical-fiber vibration sensor based on polarization-state differential detection |
| 11/29/2012 | WO2012161340A2 Acoustic wave receiving apparatus |
| 11/29/2012 | US20120301072 Optical fibre sensor assembly |
| 11/29/2012 | US20120297883 Pulse Labeling for High-Bandwidth Fiber-Optic Distributed Acoustic Sensing with Reduced Cross-Talk |
| 11/28/2012 | CN102798457A System and method for sensing VCSEL (Vertical Cavity Surface Emitting Laser) based ultrahigh-speed FBG (Fiber Bragg Grating) |
| 11/28/2012 | CN102798456A Method, device and system for measuring working range of engineering mechanical arm frame system |
| 11/28/2012 | CN102798383A Method, device and system for measuring tensional amount of screen mesh of vibration screen |
| 11/28/2012 | CN102797466A Vibration analysis method for haulage equipment in strip mines based on in-phase graphic analysis technology |
| 11/27/2012 | US8321062 Systems and method for operating a wind turbine having active flow control |
| 11/22/2012 | WO2012155460A1 Optical sensor for electro-acoustic percussion instrument |
| 11/21/2012 | EP2525194A1 Optical sensor |
| 11/21/2012 | CN202547767U Fixed frequency measuring system for engineering building |
| 11/21/2012 | CN202547766U Fiber bragg grating vibration sensing measurement system |
| 11/21/2012 | CN102790600A Detecting and filtering method for nonlinear disturbance of large-caliber telescope |
| 11/21/2012 | CN102788638A Optical sensor for electro-acoustic percussion instrument |
| 11/15/2012 | WO2012154386A1 Interferometric material sensing apparatus including adjustable reference arm and associated methods |
| 11/15/2012 | WO2012154385A1 Interferometric biological sensing apparatus including adjustable reference arm and associated methods |
| 11/15/2012 | WO2012154384A1 Interferometric material sensing apparatus including adjustable coupling and associated methods |
| 11/15/2012 | WO2012154383A1 Interferometric biometric sensing apparatus including adjustable coupling and associated methods |
| 11/15/2012 | WO2012154382A1 Interferometric sensing apparatus including adjustable reference arm and associated methods |
| 11/15/2012 | WO2012154381A1 Interferometric sensing apparatus including adjustable coupling and associated methods |
| 11/14/2012 | EP2522995A2 Methods, systems, and apparatus for detecting light and acoustic waves |
| 11/14/2012 | CN102288278B Automatic calibrating device of digital display type vibration measurer and calibrating method thereof |
| 11/14/2012 | CN102168808B Distributed optical fiber vibration sensor |
| 11/14/2012 | CN102080986B Fiber bragg grating vibration sensing component, fiber bragg grating vibration sensing device, vibration measuring system and method |
| 11/14/2012 | CN101852644B Shock sensor, earthquake alarming system using same and alarming method |
| 11/08/2012 | WO2012150079A2 Method and device for the optical non-contact oscillation measurement of an oscillating object |
| 11/08/2012 | DE102011100252A1 Verfahren und Vorrichtung zur optischen, berührungslosen Schwingungsmessung eines schwingenden Objekts Method and apparatus for optical, non-contact measurement of vibration of a vibrating object |
| 11/07/2012 | CN102359814B Three-dimensional laser motion attitude measuring system and method |
| 11/07/2012 | CN102221398B Optical fiber vibration sensing system and method |
| 11/07/2012 | CN101913437B Multi-parameter compound environmental tester |
| 11/07/2012 | CN101620764B Distributed optical fiber vibration sensing system based on polarization beam splitting detection and sensing method |
| 11/01/2012 | WO2012022934A3 Detection of moving objects |
| 10/31/2012 | CN202511872U Novel low-frequency vibration laser detection device under strong electromagnetic interference |
| 10/31/2012 | CN202511871U Displacement feedback type vibration table-based infrasound generating device |
| 10/31/2012 | CN102759396A Method for restraining light-intensity fluctuation influences of optical fiber hydrophone system |
| 10/25/2012 | US20120266680 Method and system for locating a laser vibrometer during non-contact scanning |