| 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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| 07/14/2010 | CN101004357B Apparatus for measuring vibration characteristic of head gimbal assembly |
| 07/07/2010 | CN201522328U Dedicated vibration bracket for measuring acceleration phase shift sensitivity of hydrophone |
| 07/07/2010 | CN101769783A Static pressure balanced fiber ultrasonic sensor array |
| 07/06/2010 | US7751657 Inclinometer system |
| 07/06/2010 | CA2462634C System and method for detecting the insertion or removal of a hearing instrument from the ear canal |
| 07/01/2010 | US20100162819 Acoustic measurement device and acoustic measurement method |
| 06/30/2010 | EP2201342A2 A multipoint laser doppler vibrometer |
| 06/30/2010 | CN101762318A Optical fiber extrinsic Fabry-Perot interference ultrasonic sensing and detection device |
| 06/30/2010 | CN101762317A Device and method for measuring inner-layer vibration parameters of double window |
| 06/30/2010 | CN101762316A System and method for detecting and measuring vibration in an industrial roll |
| 06/29/2010 | US7743661 Fiber optic MEMS seismic sensor with mass supported by hinged beams |
| 06/24/2010 | WO2010068984A1 Implantable microphone |
| 06/23/2010 | CN101755203A Pre-amplifier for detection lasers within laser ultrasonic inspection systems |
| 06/23/2010 | CN101751811A Laser scan type vibration integrated demonstrator |
| 06/23/2010 | CN101750143A Integrated optical interference three-dimensional vibration monitor |
| 06/23/2010 | CN101750142A Optical measuring method of vibration and optical measuring system |
| 06/23/2010 | CN101210852B Optical fiber grating sonic device |
| 06/10/2010 | US20100139405 Fiber Optics Sound Detector |
| 06/10/2010 | US20100139368 Micro-optical-mechanical system photoacoustic spectrometer |
| 06/09/2010 | CN101729967A Acousto-optic conversion method and optical microphone based on multiple-mode interference |
| 06/09/2010 | CN101726354A Optical fiber laser vector hydrophone |
| 06/09/2010 | CN101308042B Optical fiber vibration sensor |
| 06/03/2010 | US20100135111 Systems and methods for minimally-invasive optical-acoustic imaging |
| 06/02/2010 | CN201497789U Device for measuring short-circuit vibration displacement and deformation of transformer type products |
| 06/02/2010 | CN101718580A Sound vibration acquisition device based on optical grating |
| 05/26/2010 | CN101715547A Seismic cable structure |
| 05/26/2010 | CN101713685A Phase compensation method of passive homodyne quadrature demodulation technology |
| 05/19/2010 | CN101710185A Short-period digital seismometer |
| 05/18/2010 | CA2424165C Actuator and sensor system for composite structures |
| 05/12/2010 | CN201464026U Vibration detection device for vibrating screens |
| 05/12/2010 | CN201464025U Fiber grating acoustic sensor |
| 05/12/2010 | CN101706579A MEMS dynamic tester based on self-mixing effect of diode laser |
| 05/12/2010 | CN101706317A Modulation-demodulation system and modulation-demodulation method for use in vibration detection |
| 05/06/2010 | DE102008053606A1 Equipment for use in e.g. autonomous underwater vehicle, for searching and/or identifying objects and/or structures under water, has optical mechanism detecting acoustic waves and exhibiting inlet, which is locked by input membrane |
| 05/05/2010 | CN201449289U Intensity demodulation-type vibration sensor based on fiber grating Fabry-Perot cavity |
| 05/05/2010 | CN101701845A Method for identifying running state of wheels of locomotive |
| 05/05/2010 | CN101701844A Optical fiber vibration sensing system and using method thereof based on double Mach-Zehnder interferometers |
| 05/04/2010 | US7707889 Method and apparatus for determination of oscillations on a rotating blade disc of a turbine |
| 04/29/2010 | WO2010047935A1 Differential mode laser detection and ranging device |
| 04/15/2010 | US20100094561 Apparatus and method for processing biological information |
| 04/08/2010 | WO2010039950A1 Optical ultrasound receiver |
| 04/07/2010 | CN101692068A Roadbed quality detection system for free way |
| 04/07/2010 | CN101692067A Vibration sensor for detecting roadbed of freeway |
| 04/01/2010 | WO2010036468A1 Method and apparatus for monitoring blade vibration with an imaging fiber optic ribbon probe |
| 04/01/2010 | WO2010036466A1 Method and apparatus for monitoring blade vibration with a fiber optic ribbon probe |
| 03/31/2010 | EP2169367A1 Acoustic measurement device and acoustic measurement method |
| 03/31/2010 | CN201434724Y Photoelectric reciprocating frequency detection device |
| 03/30/2010 | US7689373 USB vibration data acquisition |
| 03/25/2010 | US20100073674 Measurement apparatus and measurement method |
| 03/24/2010 | CN201429724Y Storage support of optical fiber cables |
| 03/24/2010 | CN201429460Y Mining optical fiber grating vibration sensor |
| 03/24/2010 | CN101676694A High-voltage micro-vibration digital photoelectric measurement method |
| 03/17/2010 | CN101672825A Express highway roadbed detecting system based on vibration frequency specturm analysis |
| 03/16/2010 | US7679999 Marine acoustic sensor assembly |
| 03/10/2010 | EP2160577A2 Method and apparatus for the simultaneous generation and detection of optical diffraction interference pattern on a detector |
| 03/04/2010 | WO2010005574A3 Fiber optical acoustic sensor system and method using push-pull two wavelength fabry perot sensors |
| 03/03/2010 | EP2159575A2 Laser-based apparatus for ultrasonic flaw detection |
| 03/03/2010 | EP2158459A1 Seismic cable structure |
| 03/03/2010 | CN101660939A Optical fiber sound pressure sensor |
| 02/25/2010 | WO2010020795A1 Fibre optic acoustic sensing |
| 02/25/2010 | US20100043561 Ultrasonic probe and method for the optical detection of ultrasonic waves |
| 02/25/2010 | DE202009012811U1 Lasergestützte Abtastung einer Membran, die durch Schalldruck ausgelenkt wird Laser-based scanning of a membrane, which is deflected by the sound pressure |
| 02/25/2010 | CA2734717A1 Fibre optic acoustic sensing |
| 02/24/2010 | CN201413555Y Front panel of main case of region anti-invasion system based on optical fiber interferometer |
| 02/24/2010 | CN201413421Y Vibration test sensing optical cable |
| 02/23/2010 | US7668322 Device for detecting pressure fluctuations, display device, recording device and sound reproduction system |
| 02/17/2010 | CN101650216A Improved carpet type monitoring system and monitoring method thereof |
| 02/11/2010 | WO2009028701A3 Acoustic-wave sensor, acoustic-wave sensor array, and ultrasonic imaging apparatus |
| 02/10/2010 | CN100588918C High-speed area array camera shafting traverse vibration measuring apparatus and method thereof |
| 02/09/2010 | US7660492 Systems and methods for minimally-invasive optical-acoustic imaging |
| 02/03/2010 | CN101639379A Vibration monitoring structure and method based on optical fiber polarized light time domain reflection sense |
| 02/03/2010 | CN100587415C Piston type optical fibre grating sonic device |
| 01/28/2010 | US20100018316 NSMS flight laser detector cooling system |
| 01/28/2010 | US20100018303 Permanently installed in-well fiber optic accelerometer-based sensing apparatus and associated method |
| 01/27/2010 | CN201392239Y Automobile abnormal sound detection device |
| 01/26/2010 | CA2428218C Apparatus for parallel detection of the behaviour of mechanical micro-oscillators |
| 01/20/2010 | CN100582688C Optic cable vibration detecting device capable of positioning |
| 01/20/2010 | CN100582679C Broad domain all-optical fiber disturbance sensing network system self-adapting disturbance signal processing recognition device |
| 01/14/2010 | WO2010005574A2 Push-pull two wavelength fabry perot sensor for fiber optic acoustic sensor arrays |
| 01/14/2010 | WO2008149059A8 Seismic cable structure |
| 01/14/2010 | CA2730004A1 Fiber optic acoustic sensor array |
| 01/13/2010 | CN101625258A Optical fiber vibration sensing system based on Mach-Zehnder interferometer and sensing method |
| 01/13/2010 | CN101625257A White light interference positioning and monitoring device and method capable of using time delay estimation |
| 01/06/2010 | CN101620003A Fiber grating Fabry-Perot cavity vibration sensor and vibration measurement system thereof |
| 01/06/2010 | CN100578168C Fiber-optic safety guard system for use in oil line |
| 12/31/2009 | US20090320609 Turbomachinery system fiberoptic multi-parameter sensing system and method |
| 12/30/2009 | EP2138813A1 Sound source separating device and sound source separating method |
| 12/30/2009 | CN201373772Y Vibration frequency measuring device |
| 12/30/2009 | CN101617203A Detecting particulate contaminants in a fluid |
| 12/23/2009 | CN101608946A Fiber laser hydrophone signal demodulating system |
| 12/23/2009 | CN101608945A PDVS real-time data processing system and processing method thereof |
| 12/23/2009 | CN101608944A Optical fiber vibration sensing head and manufacturing method thereof |
| 12/23/2009 | CN100573068C Transformer device on-line multi-parameter monitoring device based on optical fiber sensor technology |
| 12/16/2009 | CN101603857A Method for demodulating phase carrier in Fabry-Perot interference type optical fiber hydrophon |
| 12/16/2009 | CN101603856A Long-distance distributed optical fiber vibration sensing system and method thereof |
| 12/16/2009 | CN100570292C High speed face array CCD shafting twisting vibration decoupling measurement method |
| 12/09/2009 | CN101599766A Differential-mode component extraction method of optical signal and device thereof |
| 12/09/2009 | CN101598594A Optical fiber hydrophone towed array protection bracket |
| 12/08/2009 | CA2457531C Two delay coil sagnac-based sensor array |
| 12/02/2009 | EP2126518A2 Physical value sensor comprising an optical fibre that is not sensitive to static values |