| 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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| 07/04/2012 | CN202305005U 直流换流站设备噪声相干分离的装置 DC converter station equipment noise coherent separation device |
| 07/04/2012 | CN102543064A Laser doppler interference based voice detecting system |
| 07/04/2012 | CN102542731A Debris flow earth sound monitoring alarm device |
| 07/04/2012 | CN102540175A Sensor assembly and methods of measuring proximity of machine component to sensor |
| 07/04/2012 | CN102539057A Manufacture method of optical fiber sensor |
| 07/04/2012 | CN102538945A Cross-polarization control-based distributed vibration sensing system and method |
| 07/04/2012 | CN102538944A Infrasound generating device based on displacement feedback type vibration table |
| 07/04/2012 | CN102538943A Method and system for extracting high-speed vibration synchronizing signal |
| 07/04/2012 | CN102230820B Fiber Bragg grating accelerometer based on U-type cantilever structure |
| 07/04/2012 | CN102183292B Method and detection sensor for detecting optical fiber grating vibration of large-scale mechanized equipment |
| 07/04/2012 | CN101907722B Fiber bragg grating vibration acceleration sensor for monitoring low-frequency earthquake waves |
| 07/04/2012 | CN101819114B Ultrasonic bending fatigue experimental device |
| 06/28/2012 | WO2012085335A1 Method for manufacturing an ultrasonic sensor and a sensor structure |
| 06/28/2012 | WO2012085334A1 Method for manufacturing an ultrasonic sensor |
| 06/28/2012 | WO2012084997A2 Detecting the direction of acoustic signals with a fiber optical distributed acoustic sensing (das) assembly |
| 06/28/2012 | DE102010061606A1 Hochspannungsgarnitur und Verfahren zur Detektion von Teilentladungen in Hochspannungsgarnituren High voltage and set methods for the detection of partial discharges in high voltage accessories |
| 06/28/2012 | DE102010061605A1 Faseroptischer Sensor sowie Messeinrichtung mit einem faseroptischen Sensor The fiber optic sensor and measurement device having a fiber optic sensor |
| 06/27/2012 | EP2469323A1 Sound information display device, sound information display method, and program |
| 06/27/2012 | CN102519574A Heterodyne modulation method for vibration detection |
| 06/27/2012 | CN102519573A Remote non-contact vibration measuring device |
| 06/27/2012 | CN102519378A Device for measuring bending and torsional vibration of hinged plate of phase-sensitive detector (PSD) sensor and method for device |
| 06/21/2012 | US20120152024 Distributed acoustic sensing (das)-based flowmeter |
| 06/20/2012 | CN102506988A Monitoring system and method of on-line galloping and wind deflection of power transmission line |
| 06/20/2012 | CN101762317B Device and method for measuring inner-layer vibration parameters of double window |
| 06/19/2012 | US8203911 Acoustic and optical illumination technique for underwater characterization of objects/environment |
| 06/19/2012 | CA2537214C Optical fiber pressure and acceleration sensor fabricated on a fiber endface |
| 06/13/2012 | CN102494756A Single-light source distributed optical fiber micro-vibration sensing and positioning device |
| 06/13/2012 | CN102494755A Unsteady sound field separation method |
| 06/13/2012 | CN101566497B Distribution-type fiber vibration sensor system based on phase detection and optical time domain reflection |
| 06/07/2012 | US20120137781 Fibre Optic Acoustic Sensing |
| 06/06/2012 | CN101963786B Photostrictive driver based vibration wireless driving control device and method |
| 06/06/2012 | CN101660939B Optical fiber sound pressure sensor |
| 05/30/2012 | EP2458349A1 Sensor probe and method of assembling a sensor probe |
| 05/30/2012 | CN102483347A Improvements in distributed sensing |
| 05/23/2012 | CN202229840U Laser detection device for voice information |
| 05/23/2012 | CN102155986B Optical frequency metering and testing device for laser vibration measurer |
| 05/23/2012 | CN101871894B Characterization method for realizing dynamic loading imaging of material internal defect by utilizing strobe frequency detection |
| 05/23/2012 | CN101788331B Detecting equipment and detecting method of infrasound |
| 05/23/2012 | CN101762318B Optical fiber extrinsic Fabry-Perot interference ultrasonic sensing and detection device |
| 05/15/2012 | US8179535 Remote sensing of underwater acoustic fields |
| 05/10/2012 | WO2012059108A1 An integrity monitoring system and a method of monitoring integrity of a stationary structure |
| 05/10/2012 | CA2811780A1 An integrity monitoring system and a method of monitoring integrity of a stationary structure |
| 05/09/2012 | CN102445265A Method and system for measuring amplitude curve of mechanical vibration |
| 05/09/2012 | CN101852645B Precise positioning type optical fiber distributed vibration sensor |
| 05/09/2012 | CN101660924B Method for improving measurement precision by using acousto-optic device in optical heterodyne interferometry |
| 05/03/2012 | US20120108943 Systems and methods for minimally-invasive optical-acoustic imaging |
| 05/02/2012 | EP2013591B1 Tri axis high frequency fiber optic acoustic sensor |
| 05/02/2012 | CN202209956U Multipoint monitoring device for state of elements of high-voltage electric power energy equipment |
| 05/02/2012 | CN102435296A Detection device for radiation energy of infrasonic weapon based on fiber optical sensor |
| 05/01/2012 | US8166825 Method and apparatus for noise reduction in ultrasound detection |
| 04/25/2012 | CN202204593U 三分量振动校准装置 Three components of vibration calibration device |
| 04/25/2012 | CN102426198A 一种基于匹配型光纤布拉格光栅的声发射信号传感系统 A matching type optical fiber Bragg grating sensor system based on acoustic emission signals |
| 04/25/2012 | CN102168953B 一种基于相干外差检测的全分布式光纤应变及振动传感器 Based on coherent heterodyne detection of fully distributed fiber optic strain and vibration sensors |
| 04/25/2012 | CN101118176B 无源光纤光栅水声信号传感器及其制作方法 Passive optical grating underwater acoustic signal sensor and manufacturing method thereof |
| 04/19/2012 | WO2012048359A1 Optical evanescent field sensor |
| 04/18/2012 | EP2097880B1 Fault-tolerant distributed fiber optic intrusion detection |
| 04/18/2012 | CN202195877U 数显式测振仪的自动校准装置 Number explicit vibrometer automatic calibration device |
| 04/18/2012 | CN102419252A 光纤在线式高速列车齿轮箱检测装置 Fiber-optic high-speed train line gearbox detection device |
| 04/18/2012 | CN102072761B General calibration system and method of phase shift sensitivity based on optical phase demodulator |
| 04/04/2012 | EP2435856A1 Bragg grating fiber hydrophone with a bellows amplifier |
| 04/04/2012 | EP2435855A1 Fiber bragg grating hydrophone comprising a diaphragm amplifier |
| 04/04/2012 | EP1173785B8 Sensor array cable and fabrication method |
| 04/04/2012 | CN102401691A All-fibre laser Doppler three-dimensional vibration meter |
| 04/04/2012 | CN102401670A 一种降低光纤双折射影响的光纤干涉测量系统 An optical fiber birefringence effects of reduced fiber interferometer measurement system |
| 03/29/2012 | WO2011051663A3 Signal processing |
| 03/29/2012 | US20120078534 Use of Optical Fiber for Distributed Monitoring of Machinery |
| 03/28/2012 | EP2434319A2 Method of fabricating an optical structure on an optical fiber |
| 03/28/2012 | CN102393987A Adaptive continuous-wave wide-dynamic-range signal processing method for wide-field full-optical fiber sensing system |
| 03/21/2012 | CN101625258B Optical fiber vibration sensing system based on Mach-Zehnder interferometer and sensing method |
| 03/21/2012 | CN101416032B Fibre optic sensor package |
| 03/15/2012 | US20120060615 Method and apparatus for optical sensing |
| 03/14/2012 | CN202166620U 新光源在线检品频闪仪 New light stroboscope seized goods online |
| 03/14/2012 | CN102374895A Large dynamic optical fiber vibration sensor |
| 03/13/2012 | US8134715 Adjustable interferometer for laser ultrasonic measurement |
| 03/08/2012 | WO2012029236A1 Optical microphone |
| 03/08/2012 | WO2012028845A1 Improvements in fibre optic cables for distributed sensing |
| 03/07/2012 | EP2426880A2 Demodulation method |
| 03/06/2012 | US8130594 Mechanically filtered hydrophone |
| 02/29/2012 | EP1711784B1 Method and device for detection of vibrations on a rotating vane of a turbine |
| 02/29/2012 | CN101403473B Optical fiber security early-warning phase control system |
| 02/23/2012 | WO2012022934A2 Detection of moving objects |
| 02/23/2012 | WO2012022933A1 Gunfire detection |
| 02/23/2012 | WO2012022602A1 Apparatus for monitoring a rotating machine part |
| 02/22/2012 | CN102359814A Three-dimensional laser motion attitude measuring system and method |
| 02/22/2012 | CN101871808B 高稳定fp光纤声传感器 High stability fiber optic acoustic sensor fp |
| 02/16/2012 | WO2011162868A3 Precision measurements in a fiber optic distributed sensor system |
| 02/16/2012 | WO2011039501A3 Phase based sensing |
| 02/16/2012 | DE102010033951A1 Arrangement for multidimensional measurement of oscillations of object, has deflecting units for deflecting beam such that measuring point of object is detectable with beam from spatial directions or one of spatial directions |
| 02/15/2012 | EP2418466A2 Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity |
| 02/15/2012 | CN102353441A Small-sized adaptive optical-fiber ultrasonic sensor |
| 02/15/2012 | CN102353393A Quadrature demodulation device for interference type photo-sensor based on pi/2 phase modulation |
| 02/08/2012 | EP1173785B1 Sensor array cable and fabrication method |
| 01/25/2012 | EP2409124A1 Reproduction of sound of musical instruments by using fiber optic sensors |
| 01/25/2012 | CN102331290A Method and apparatus for solving zero point problem of non-contact vibration measurement with utilization of phase control |
| 01/18/2012 | CN202119906U Water wave characteristic research device based on Doppler effect |
| 01/18/2012 | CN202119528U Full optical path symmetric positioning-capable all-fiber vibration sensor |
| 01/18/2012 | CN102322939A Transient detection method for solid surface acoustic waves and device thereof |
| 01/18/2012 | CN102322938A Visual measuring device for vibration of piezoelectric flexible board structure and control method |
| 01/18/2012 | CN102322937A Impact wave travel time parameter measuring method and device |
| 01/18/2012 | CN102322936A Impact wave travel time parameter measuring method for single-path optical fiber and device |