| 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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| 01/18/2012 | CN102322879A Continuous optical wavelength division multiplexing long-distance distributed disturbance positioning device and method |
| 01/18/2012 | CN101625257B White light interference positioning and monitoring device and method capable of using time delay estimation |
| 01/17/2012 | US8096184 Turbine blade for monitoring blade vibration |
| 01/11/2012 | CN102313779A Acoustic emission signal sensing system based on fiber Bragg grating |
| 01/10/2012 | US8094519 Intensity modulated fiber optic hydrophones |
| 01/04/2012 | CN202101755U Three-dimensional laser motion attitude measurement system |
| 01/04/2012 | CN202101754U Bridge vibration detection device |
| 01/04/2012 | CN202101683U Long-distance distributed disturbance locating device employing continuous wavelength division multiplexing |
| 01/04/2012 | CN101871807B Infrasonic wave detection device and method |
| 01/04/2012 | CN101852643B Temperature self-compensating double grating symmetrical push-pull type fiber grating vibrating sensor |
| 12/29/2011 | WO2011162868A2 Precision measurements in a fiber optic distributed sensor system |
| 12/29/2011 | US20110314921 Method and apparatus for imaging biological data |
| 12/28/2011 | EP2400260A1 Optical displacement sensor |
| 12/28/2011 | CN202092767U 用于电声打击乐器的光学传感器 Optical sensors for electro-acoustic percussion |
| 12/28/2011 | CN202088824U 轮胎转速及近场噪声测量装置 Tire speed and near-field noise measuring device |
| 12/28/2011 | CN102301212A 对象振动特性的测量 Measuring the vibration characteristics of the object |
| 12/28/2011 | CN101608945B 分布式光纤振动传感系统的实时数据处理系统及处理方法 Distributed optical fiber vibration sensor systems, real-time data processing system and processing methods |
| 12/21/2011 | EP1875176B1 High-sensitivity fiber-compatible optical acoustic sensor |
| 12/21/2011 | CN102288278A 数显式测振仪的自动校准装置及其校准方法 Digital Display vibrometer automatic calibration device and calibration method |
| 12/20/2011 | US8079261 Accelerometers |
| 12/17/2011 | CA2743696A1 Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity |
| 12/15/2011 | US20110305118 Fiber Optic Hydrophone Sensors And Uses Thereof |
| 12/15/2011 | US20110305116 Intensity Modulated Fiber Optic Hydrophones |
| 12/15/2011 | US20110303015 Photoacoustic measuring apparatus |
| 12/14/2011 | CN202075031U 一种光纤光栅水听器及其相位解调装置 An optical fiber grating hydrophone and phase demodulation device |
| 12/13/2011 | CA2476772C Optical fibre sensors mounted on a cable |
| 11/30/2011 | CN202057412U 一种光纤光栅振动传感器 An optical fiber grating vibration sensor |
| 11/30/2011 | CN102261949A 一种光纤传感器的柔性夹具 A fiber optic sensor flexible fixture |
| 11/30/2011 | CN102261948A 变压器运行状态声音在线监测和分析系统 Transformer running status online monitoring and analysis system sound |
| 11/30/2011 | CN101539631B 一种地震监测装置 One kind of earthquake monitoring devices |
| 11/17/2011 | WO2011141445A1 Fibre optical accelerometer |
| 11/16/2011 | CN202041323U Distributed multi-parameter optical fiber sensor |
| 11/16/2011 | CN202041279U Push-pull type optical fiber hydrophone |
| 11/16/2011 | CN101982740B Optical fiber grating vibration sensor comprising double cantilever beams with equal strength |
| 11/16/2011 | CN101876566B Optical fiber sensing device for measuring voice vibration by passing through solid |
| 11/15/2011 | US8059923 Systems and methods for minimally-invasive optical-acoustic imaging |
| 11/10/2011 | DE102010019813A1 Faseroptischer Vibrationssensor A fiber-optic vibration sensor |
| 11/09/2011 | EP2385357A1 Fibre optic vibration sensor |
| 11/09/2011 | EP2384423A1 Measurement of vibration characteristics of an object |
| 11/09/2011 | CN101799318B Laser homodyne vibration detection optical system |
| 11/02/2011 | CN102230820A Fiber Bragg grating accelerometer based on U-type cantilever structure |
| 10/26/2011 | CN102226703A Distributed fiber multi-parameter sensor and multi-parameter measuring method |
| 10/25/2011 | US8043217 Method and apparatus to quantify specific material properties of objects using real-time ultrasound burst spectrography technique |
| 10/19/2011 | CN102221398A Optical fiber vibration sensing system and method |
| 10/19/2011 | CN102221397A LSAW positioning measuring system based on Sagnac interferometer |
| 10/12/2011 | EP2375227A1 Measurement of three-dimensional motion characteristics |
| 10/06/2011 | WO2011058313A3 Improvements in distributed sensing |
| 10/06/2011 | WO2010110753A8 A magnetic media tester and a method of magnetic media testing |
| 09/22/2011 | WO2011115933A2 Optical-fiber-compatible acoustic sensor |
| 09/22/2011 | WO2011115204A1 Fbg oscillation detection system, device and oscillation detection method employing the system |
| 09/21/2011 | EP1472643B1 Arrangement and method for measurement on a resonant oscillator, control thereof and setting of a pixel width |
| 09/21/2011 | CN201983852U Novel distribution type optical fiber vibration sensing system |
| 09/21/2011 | CN201983851U Bireflection delayed type locatable all-fiber vibration sensor |
| 09/21/2011 | CN201983850U 一种振动感知装置 A vibration sensing device |
| 09/21/2011 | CN201980252U 一种轨道监测传感装置 One kind of orbit to monitor sensing devices |
| 09/21/2011 | CN102197284A Fibre optic acoustic sensing |
| 09/20/2011 | US8020436 Permanently installed in-well fiber optic accelerometer-based sensing apparatus and associated method |
| 09/15/2011 | WO2011110179A1 Wind energy power plant equipped with an optical vibration sensor |
| 09/14/2011 | CN201974235U 按摩器频率测试仪 Massage Frequency Tester |
| 09/14/2011 | CN102183292A Method and detection sensor for detecting optical fiber grating vibration of large-scale mechanized equipment |
| 09/14/2011 | CN102183291A Systems and methods for measuring turbine blade vibratory response |
| 09/07/2011 | EP2104842B1 Fabry-perot acoustic sensor and corresponding manufacturing method |
| 09/07/2011 | CN102175303A Three-dimensional vibration interferometry device based on spherical cooperative target |
| 09/07/2011 | CN102175302A Novel distributed optical fiber vibration sensing system |
| 09/07/2011 | CN101839759B Few-mode fiber oblique raster-based vibration sensing system |
| 09/07/2011 | CN101526393B Method for measuring oscillation frequency and oscillation frequency measuring device |
| 08/31/2011 | CN102169012A Method for increasing vibration measurement precision of semiconductor laser sinusoidal phase modulating interferometer |
| 08/31/2011 | CN102168953A Full-distributed optical fiber strain and vibration sensor based on coherent heterodyne detection |
| 08/31/2011 | CN101592578B Silicon cantilever sensor, preparation method and application thereof |
| 08/31/2011 | CN101592472B Single-grating interferometer for time resolution |
| 08/25/2011 | WO2011048373A3 Downhole monitoring with distributed acoustic/vibration, strain and/or density sensing |
| 08/25/2011 | US20110203378 Integrated optical and acoustic transducer device |
| 08/24/2011 | CN102165293A Method and apparatus for monitoring blade vibration with a fiber optic ribbon probe |
| 08/24/2011 | CN102165292A Method and apparatus for monitoring blade vibration with an imaging fiber optic ribbon probe |
| 08/24/2011 | CN102162750A All-path symmetric type positioning all-fiber vibration sensor |
| 08/24/2011 | CN102162749A Full optical fiber symmetric differential interferometer |
| 08/24/2011 | CN102162748A Full optical fiber reenterable differential interferometer |
| 08/18/2011 | DE102004031291B4 Verfahren zum Identifizieren von akustisch kritischen Stellen A method for identifying acoustically critical points |
| 08/17/2011 | EP2356412A1 Optical ultrasound receiver |
| 08/17/2011 | CN102155986A Optical frequency metering and testing device for laser vibration measurer |
| 08/10/2011 | EP2354772A1 Optical fiber type vibration meter and vibration detection method |
| 08/10/2011 | CN201926497U 一种单体式光纤传感器 One monomer type optical fiber sensor |
| 08/10/2011 | CN201926496U 一种分隔式光栅传感器 A splitter-type grating sensor |
| 08/10/2011 | CN102147236A Fully distributed optical fiber strain and vibration sensing method and sensor |
| 08/10/2011 | CN101598594B Optical fiber hydrophone towed array protection bracket |
| 08/09/2011 | US7992440 Optical fiber vibration sensor |
| 08/04/2011 | US20110188344 Systems and methods for distributed interferometric acoustic monitoring |
| 08/04/2011 | US20110187868 Acoustic-wave sensor, acoustic-wave sensor array, and ultrasonic imaging apparatus |
| 08/04/2011 | US20110185815 Detection of deposits in flowlines |
| 08/03/2011 | EP2350582A1 Differential mode laser detection and ranging device |
| 08/03/2011 | EP1506340B1 System and method for online control of paper elasticity and thickness |
| 08/03/2011 | CN102141427A Method for detecting sound field parameter in fluid medium by using laser vibrometer |
| 08/03/2011 | CN101718580B Sound vibration acquisition device based on optical grating |
| 08/02/2011 | US7987718 Vibroacoustic system for vibration testing |
| 07/27/2011 | CN201909667U Running status voice and local electro-discharge online monitoring and analyzing device of transformer |
| 07/27/2011 | CN101713685B Phase compensation method of passive homodyne quadrature demodulation technology |
| 07/27/2011 | CN101625264B Super-large length distributed optical fiber sensing optical receiver |
| 07/21/2011 | DE102010001734B3 Machine tool, has evaluation device determining frequency spectrum based on reflected signal and oscillation frequency, where frequencies of belt are oscillated by frequency spectrum when speed of belt exceeds preset speed range |
| 07/20/2011 | CN201903949U Debris flow earth sound monitoring and warning device |
| 07/20/2011 | CN102128673A Interferometric fiber vibration sensor |